Email infrastructure of jhuapl.edu
According to Live Direct Marketing's daily DNS scan (September 7, 2026), jhuapl.edu (Tranco rank #24,592) points its inbound MX to Self-Hosted. Its observed DMARC policy is p=none (monitoring). Policy alone does not establish inbox or spam placement.
Last updated: .
| Mailbox provider (MX) | Self-Hosted |
|---|---|
| ESPs in SPF | none detected |
| SaaS senders in SPF | none detected |
| DMARC policy | p=none |
| DMARC record | v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:dmarc-aggdata@jhuapl.edu; ruf=mailto:dmarc-forensic@jhuapl.edu |
| Tranco rank | #24,592 |
| Snapshot | 2026-09-07 (updated daily) |
Keep an eye on jhuapl.edu
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Manage existing subscriptions →How jhuapl.edu compares
Same daily dataset, three views: how its mailbox provider is trending, how strict DMARC is at its position in the list, and where its own policy sits among all DMARC publishers in the dataset.
Market share of Self-Hosted
DMARC enforced by list position
Policy maturity of all DMARC publishers
From observation to a useful check
- What was observed
- The DNS records and classifications in this snapshot.
- What it means
- MX describes inbound mail; SPF authorizes senders.
- What is unknown
- The actual sending IP, nested SPF dependencies, inbox placement and commercial relationships. MTA-STS, TLS-RPT and BIMI adoption are not measured.
- Next check
- Verify current DNS and test a real message: run an inbox placement test.
DNS records
Source: OpenINTEL / Tranco. Capture: 2026-09-07. These are answers from the measurement vantage point, not a live DNS check. TTL is the observed cache lifetime in seconds.
jhuapl.edu · A — Answer records observed
IPv4 addresses for this name. They do not identify the mail server or prove a hosting migration.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · A · TTL 20 s · 2026-09-07T01:21:13Z · AD=1
23.222.34.49 - jhuapl.edu · RRSIG · TTL 20 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=20; signature=b4396019348a23e78a792e20e893d1e2b60541dd4d01d75cdc17889122b50d47718f80e1e97474f9e14da5d3e17ba691b4400b1c06ae0f0bb522aca24e5857a124af77b716aa49038162936fb96d51e0877af00688a983d2cf7718f276402e6ca99ac3bfa0b9a530aa1e9f36ec6596026f8dd3b81b3cdaca205502cd835c0da7; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=A
jhuapl.edu · AAAA — Answer records observed
IPv6 addresses for this name. An address record does not test service availability.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · AAAA · TTL 20 s · 2026-09-07T01:21:13Z · AD=1
2a02:26f0:c900:188::2298 - jhuapl.edu · AAAA · TTL 20 s · 2026-09-07T01:21:13Z · AD=1
2a02:26f0:c900:1b3::2298 - jhuapl.edu · RRSIG · TTL 20 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=20; signature=790db61bdf7dbe2f4ad7892f272979abd335ae871e3e05fb1da4aa3cf2952b7eddf2cd656bcafafdf33640dc56d14ff80448ec7c8202d2cf0a5725a5c35d383a6cdd4931c9294b15aacf071dca2f1829406d9a96afdf04993409ec55cccf69f2d66cae0f4e49dbc006f88453b0c24db0e63fb96da9bd0632fb48daedd166c2ec; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=AAAA
jhuapl.edu · NS — Answer records observed
Name servers listed for the DNS zone.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · NS · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
a1-121.akam.net. - jhuapl.edu · NS · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
a12-66.akam.net. - jhuapl.edu · NS · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
a2-67.akam.net. - jhuapl.edu · NS · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
a24-64.akam.net. - jhuapl.edu · NS · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
a5-65.akam.net. - jhuapl.edu · NS · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
a7-66.akam.net. - jhuapl.edu · RRSIG · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=28800; signature=16606899bd1f910c37a5bd79d3f58de4da1b146c57a5d73592f50993ddff9802ffcb849f46bf16378cdeefaded50d4ec74a15a9d2d31f82ddac0eee8123853c0c87463e87d5fe35934b10fd66d3607241c4283925c37946cd96dd06eaa9b59a8196d60452b7170f637fa0ba4f8892256e5aa7177894c6de30708f3a4c5a242bc; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=NS
jhuapl.edu · MX — Answer records observed
Servers named to receive mail. Lower preference numbers are tried first.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · MX · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
30 aplegw15.jhuapl.edu. - jhuapl.edu · MX · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
30 aplegw16.jhuapl.edu. - jhuapl.edu · MX · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
50 aplegw11.jhuapl.edu. - jhuapl.edu · RRSIG · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=3600; signature=52a15ab8b09e27b9195ad81f23b4071c4b84480aba32c90946951d6ed998e678db70262b8f7f662ef2b23f20741773640f306a000d8aa6bad20a6d2c4587b967ec918afb64b345d1adadf8e33488284b7577cad050cce05b335ac4777c1baffb8f93551bbd6ca0ce3976507d08ee3a86606430cbde1bb0a56b86e4a129d0cbe5; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=MX
jhuapl.edu · SOA — Answer records observed
Zone administration data. The serial is a version number, not a creation date or clock.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · RRSIG · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=28800; signature=ab096544cb2954ae05d80138021bbbdd37bfa1c17b051881cd37cb38456c2fee10160a2e740f14df0ce30e5f5ac7396305a48bdd8e9c79963d6e8837e1f53d5cf3440703fdf7842055a7311c02d545d9aa73ea2843e8d5d4aaaeabb885ce9a629db0607014c5eff72f1344108e5b8e8794bf7d0be427da432f45a7c59c98975a; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=SOA - jhuapl.edu · SOA · TTL 28800 s · 2026-09-07T01:21:13Z · AD=1
expire=2592000; minimum=600; mname=infoblox-prod-gm.jhuapl.edu.; refresh=10800; retry=1080; rname=nic-contact.jhuapl.edu.; serial=14142271
jhuapl.edu · CAA — Answer records observed
Rules for certificate issuance. These do not show whether an existing certificate is valid.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · CAA · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
flags=0; tag=issue; value="amazon.com" - jhuapl.edu · CAA · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
flags=0; tag=issue; value="digicert.com" - jhuapl.edu · CAA · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
flags=0; tag=issue; value="entrust.net" - jhuapl.edu · CAA · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
flags=0; tag=issue; value="letsencrypt.org" - jhuapl.edu · RRSIG · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=3600; signature=1b2cc540759a7a706ab49fb2b2bc3d4037c0d3a4c783ac10511b7e9555b5fcea6e1be58091aaf06f7496122d55eac3302680f3691dfd4392af047d44ebd6b580eb1c91ea85573e018cd7b45d91182c918b515fa1533a2b8121acb3b916a766fc949b64055f9ddf4c71b7e562656b27c0736596621280b8e8ef7a78b56e30c876; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=CAA
jhuapl.edu · TXT — Answer records observed
Text records can publish mail policies, domain-control challenges or other data.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · RRSIG · TTL 900 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=900; signature=c99cf40a28a493b4ac0f75856868180db33ea7728058136de53d02ee3bf06561862c751e68df6894513decb6e11438d755b54dae1f40a38403b5511581f287a55fa5af523301f04c2e7baed885f525ed05ab70e2e1876f301139823dee841844406e8859740ce04b9f00501ef2cf4d162425eb619443ef3358bb4be7e1b0d9e8; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=TXT Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"MS=BEAF476F943E1201991908B95AFB9B197DEA8C91"Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"MS=ms44522167"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"_qgsf4f5mdnjvi3o9z3qee7b14jg7hh3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"_we32bqtfs05ckaho8kqs2ru485nejyy"Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"adobe-idp-site-verification=ee049a8f-813b-442f-90b4-fd104f875f5d"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"anthropic-domain-verification-tq341b=oBCkdcyRUqosD3DhP3ANRHo14"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"apple-domain-verification=RKLIFrIynQzP4pCG"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"apple-domain-verification=aAvXTLQ4Un0PaStD"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"docker-verification=74707060-ea1a-48b1-b640-6a329db461d5"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"duo_sso_verification=QpdBNAI3kyoR4wUsvRFq1jQ1YcTwNC2KEjmeKdHkd79Qga6mT09TAxSI2m7L3Rjp"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"duo_sso_verification=gKvlwWd4Fvr6B8p6oDANh07xX64SwVcFrnwQldvasYnCkL88dgjZdAJlclcNO8I9"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"google-gws-recovery-domain-verification=61164235"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"jamf-site-verification=PeuuGuNBwj7C2p9253xp8g"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"openai-domain-verification=dv-mTnY3JilyjE1YCxsoAIVPAH3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"openai-domain-verification=dv-zu0mGeENBTYBhC5qeGTFobj5"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"slack-domain-verification=sL3vQmrG3nMI3nlYRH4je7Zbrqo5ITqig05DxKHy"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"slack-domain-verification=zRblbrJ3pYOQrzNlscjb4SjQ5oFdPvCs7w2EbHhT"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"smartsheet-gov-site-validation=Di-sr5F3KATp9iHxNT4Uw-dQgkFYqbfa"SPF: authorized mail senders; not proof that mail was sent.
Raw TXT value
jhuapl.edu · TXT · TTL 900 s · 2026-09-07T01:21:13Z · AD=1"v=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all"
jhuapl.edu · DNSKEY — Answer records observed
DNSSEC key, signature or denial-of-existence data observed in this response.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · DNSKEY · TTL 7200 s · 2026-09-07T01:21:13Z · AD=0
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=af38059fbfe64d1596e85c7407f51f02bb9f7509f8a6549a06c6cf3856b231b93d5bfe787b15b76fd3f1ec65bb131c4f6be8d4b8271cee5b16726ada58de647cbdd3c8f600f687fe6e238e0882f677b7fc03a8d30125bfb4e065948e66e5e329245ea948595b49764fd7d02b9a82fb8aa1ef89e3d2b673379346a3f89b4d267b; protocol=3 - jhuapl.edu · DNSKEY · TTL 7200 s · 2026-09-07T01:21:13Z · AD=0
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=ebdd7b1c0096d23d6620c3295a8f513c3cb0fc50a141b84b24ee097f7e4203a6edb0def8f97e8b6aeb46b0500db68a00d7f5609f631eedb269766dbb9fd14d3f72b391cbfb8462df3cd606353e8334030a7200bd15e6d9fdaf972c68ba89f6e4a041af6760141117c52d8d82b9b13c0b9a94448f283ed91723e2a3abe5da50fb; protocol=3 - jhuapl.edu · DNSKEY · TTL 7200 s · 2026-09-07T01:21:13Z · AD=0
algorithm=8; flags=257; pk_rsa_bitsize=2048; pk_rsa_e=010001; pk_rsa_n=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; protocol=3 - jhuapl.edu · RRSIG · TTL 7200 s · 2026-09-07T01:21:13Z · AD=0
algorithm=8; key_tag=45274; labels=2; original_ttl=7200; signature=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; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=DNSKEY
jhuapl.edu · DS — Answer records observed
DNSSEC key, signature or denial-of-existence data observed in this response.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · DS · TTL 86400 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; digest=aa1e8f90a33cec4b11680b9679263458354c855381c02b992404c44c253b39cc; digest_type=2; key_tag=45274 - jhuapl.edu · RRSIG · TTL 86400 s · 2026-09-07T01:21:13Z · AD=1
algorithm=13; key_tag=6705; labels=2; original_ttl=86400; signature=3d331b8bf31bdabed14959e8f7eb8c6e674b6793dd8b88c8cef3eb2ed32b73a7ebd8d2a10469334a5b3ac7d4db38c1927da8ea249a88292cb729552175cd2dde; signature_expiration=1789183935; signature_inception=1788574935; signer_name=edu.; type_covered=DS
jhuapl.edu · CDS — Unknown: no conclusive answer in this capture
DNSSEC key, signature or denial-of-existence data observed in this response.
jhuapl.edu · CDNSKEY — Unknown: no conclusive answer in this capture
DNSSEC key, signature or denial-of-existence data observed in this response.
www.jhuapl.edu · A — Answer records observed
IPv4 addresses for this name. They do not identify the mail server or prove a hosting migration.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- e8856.dscb.akamaiedge.net · A · TTL 20 s · 2026-09-07T01:21:13Z · AD=0
88.221.70.253 - www.jhuapl.edu · CNAME · TTL 300 s · 2026-09-07T01:21:13Z · AD=0
www.jhuapl.edu.edgekey.net. - www.jhuapl.edu · RRSIG · TTL 300 s · 2026-09-07T01:21:13Z · AD=0
algorithm=8; key_tag=46195; labels=3; original_ttl=300; signature=0c390cdc93a0e9612907d803406c9dd7d2e718290b40fad3aa5c862b9ae95060d381d3cb8e4feb9e75db333e2ec976637776455e0e7b789f554b68ef956ac06accadeb765b9a2f9116be688f7f939e961375aa01004c1d548bb20ed42e652f014b1c834b1d4ecb8fec3cda24aa4c86d55fbb17114946f2d5700b108a69bdbd5c; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME · TTL 21600 s · 2026-09-07T01:21:13Z · AD=0
e8856.dscb.akamaiedge.net.
www.jhuapl.edu · AAAA — Answer records observed
IPv6 addresses for this name. An address record does not test service availability.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- e8856.dscb.akamaiedge.net · AAAA · TTL 20 s · 2026-09-07T01:21:13Z · AD=0
2a02:26f0:1180:186::2298 - e8856.dscb.akamaiedge.net · AAAA · TTL 20 s · 2026-09-07T01:21:13Z · AD=0
2a02:26f0:1180:18a::2298 - www.jhuapl.edu · CNAME · TTL 300 s · 2026-09-07T01:21:13Z · AD=0
www.jhuapl.edu.edgekey.net. - www.jhuapl.edu · RRSIG · TTL 300 s · 2026-09-07T01:21:13Z · AD=0
algorithm=8; key_tag=46195; labels=3; original_ttl=300; signature=0c390cdc93a0e9612907d803406c9dd7d2e718290b40fad3aa5c862b9ae95060d381d3cb8e4feb9e75db333e2ec976637776455e0e7b789f554b68ef956ac06accadeb765b9a2f9116be688f7f939e961375aa01004c1d548bb20ed42e652f014b1c834b1d4ecb8fec3cda24aa4c86d55fbb17114946f2d5700b108a69bdbd5c; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME · TTL 21600 s · 2026-09-07T01:21:13Z · AD=0
e8856.dscb.akamaiedge.net.
_dmarc.jhuapl.edu · TXT — Answer records observed
Text records can publish mail policies, domain-control challenges or other data.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- _dmarc.jhuapl.edu · RRSIG · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=3; original_ttl=3600; signature=46c56b8501eaf13426fa7cc03e5d5c8605d8650fa9a0bb8133ad5795254b02cb43dd28df51c853e9f5c7a3c1dfe739de10a7f261f30f86d517919f1dc1d0963ab7f8c0cb9afe9aaf4bc1fcd917f55d4eda6aab4279c6849ab63aea207ca4dc3227ef18f6237c723d5f2347b96f0caee25c1c4753c7504cfc5b9fd815d9f09f7b; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=TXT DMARC: published handling and reporting policy for authentication failures.
Raw TXT value
_dmarc.jhuapl.edu · TXT · TTL 3600 s · 2026-09-07T01:21:13Z · AD=1"v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:dmarc-aggdata@jhuapl.edu; ruf=mailto:dmarc-forensic@jhuapl.edu"
jhuapl.edu · NSEC3PARAM — Answer records observed
DNSSEC key, signature or denial-of-existence data observed in this response.
Query observed at: 2026-09-07T01:21:13Z.
Response code: 0.
- jhuapl.edu · NSEC3PARAM · TTL 600 s · 2026-09-07T01:21:13Z · AD=1
flags=0; hash_algorithm=1; iterations=0; salt=00 - jhuapl.edu · RRSIG · TTL 600 s · 2026-09-07T01:21:13Z · AD=1
algorithm=8; key_tag=46195; labels=2; original_ttl=600; signature=970fc7bebd71e7e429b65cbe256bd70002f6c98eadb90123823a8a3e5ae6dac7e1c493e2a1d586b833534d6919e078fdaf3eee69e18db30161af121aa113319c88071b06757df94986ac58bfee5a5f89303d26d4b90a90ba90d27cb86456cf37a2d8da41d918b15f1dd9df306e483607bfcc1e4882d87bc4d2c51306a76c6726; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu.; type_covered=NSEC3PARAM
DNSSEC records are shown only when returned. An unset AD flag is not proof that a zone is unsigned. MTA-STS, TLS-RPT, BIMI and arbitrary DKIM selectors are not measured here; their absence cannot be inferred.
Recorded DNS history
Registry presence: first seen 2026-04-28; last seen 2026-09-07. These are appearances in our domain registry, not domain registration dates or earlier DNS values.
This history starts with saved RR captures. Provider market-share charts are aggregate context, not this domain’s DNS history. Dates identify observations; no continuous validity between them is implied. Equivalent RR states are combined, ignoring response TTL and capture-time changes. Up to 30 distinct RR states and 60 dated captures are retained within a per-domain byte limit.
Recent observed differences
2026-09-05 → 2026-09-07
_dmarc.jhuapl.edu · TXT
Before: 2026-09-05 — Answer records observed
- _dmarc.jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=3; original_ttl=3600; signature=5e6578cf80d4d2cec53e2624a2cc3eccf3a42e27018db1c3c605b55ef8b1fb8ffe8a187592c477cc89b5d3934949384e511917534ebfbf10f44b1abe5a9c5c384ecab7dbec0bf84fd826c791ba2d3e6684265ab62717017e32cac50746354080ab21c2b9e499d7512904ecb3f353c0aaf8c1d1313fcbd3f2094bec8e275b66dc; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=TXT DMARC: published handling and reporting policy for authentication failures.
Raw TXT value
_dmarc.jhuapl.edu · TXT"v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:dmarc-aggdata@jhuapl.edu; ruf=mailto:dmarc-forensic@jhuapl.edu"
After: 2026-09-07 — Answer records observed
- _dmarc.jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=3; original_ttl=3600; signature=46c56b8501eaf13426fa7cc03e5d5c8605d8650fa9a0bb8133ad5795254b02cb43dd28df51c853e9f5c7a3c1dfe739de10a7f261f30f86d517919f1dc1d0963ab7f8c0cb9afe9aaf4bc1fcd917f55d4eda6aab4279c6849ab63aea207ca4dc3227ef18f6237c723d5f2347b96f0caee25c1c4753c7504cfc5b9fd815d9f09f7b; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=TXT DMARC: published handling and reporting policy for authentication failures.
Raw TXT value
_dmarc.jhuapl.edu · TXT"v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:dmarc-aggdata@jhuapl.edu; ruf=mailto:dmarc-forensic@jhuapl.edu"
jhuapl.edu · A
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · A
23.42.175.97 - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=20; signature=292753331df61741fd15b03f82a6d9625ec011390a5244189a1412141ffc04cefd64f6c935fb2ae18cf27c95c0ae7461432e4de611e585845943080c94c8f377c37919f31f87ec7f07b22c096310870114b46366e33e802b40ca952711a96230b914bcce9b6c0b376476037a69a6fbf61a5ecfebedbd69f21f7fc311c16bc02f; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=A
After: 2026-09-07 — Answer records observed
- jhuapl.edu · A
23.222.34.49 - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=20; signature=b4396019348a23e78a792e20e893d1e2b60541dd4d01d75cdc17889122b50d47718f80e1e97474f9e14da5d3e17ba691b4400b1c06ae0f0bb522aca24e5857a124af77b716aa49038162936fb96d51e0877af00688a983d2cf7718f276402e6ca99ac3bfa0b9a530aa1e9f36ec6596026f8dd3b81b3cdaca205502cd835c0da7; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=A
jhuapl.edu · AAAA
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · AAAA
2a02:26f0:1180:186::2298 - jhuapl.edu · AAAA
2a02:26f0:1180:18a::2298 - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=20; signature=6115bd64ba10d77e3dc542058430968408adcb4da7a4a130dccd4b01738f0236d413d40b3f153acb75eabcf278c1774f02cc69055270ce2223e3761f92fe6abc320c31d44de439448f92de72bc0a67aee6a93fa7ee69a8a5d8f77760e75d19d4026bc431a21ed3d7541ea61816dd288905e36f6ad79d5f70d7847a204572922b; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=AAAA
After: 2026-09-07 — Answer records observed
- jhuapl.edu · AAAA
2a02:26f0:c900:188::2298 - jhuapl.edu · AAAA
2a02:26f0:c900:1b3::2298 - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=20; signature=790db61bdf7dbe2f4ad7892f272979abd335ae871e3e05fb1da4aa3cf2952b7eddf2cd656bcafafdf33640dc56d14ff80448ec7c8202d2cf0a5725a5c35d383a6cdd4931c9294b15aacf071dca2f1829406d9a96afdf04993409ec55cccf69f2d66cae0f4e49dbc006f88453b0c24db0e63fb96da9bd0632fb48daedd166c2ec; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=AAAA
jhuapl.edu · CAA
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · CAA
flags=0; tag=issue; value="amazon.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="digicert.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="entrust.net" - jhuapl.edu · CAA
flags=0; tag=issue; value="letsencrypt.org" - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=3600; signature=37191617a14360be4c1012d8caf5632a944116d8b999bfc3b7e857b39990b4bcc5f8ca94eaf1f6d5c6205c95e260288a1a669a8fb275712ca2be3d5414085a26c90d03358225c06e6cce34b36f406773ffcd35e8625d9a09b679ae9b005a807711694f39bdb718cb558230d339a42aaf933a216645b910f611a2fd82d47aecd1; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=CAA
After: 2026-09-07 — Answer records observed
- jhuapl.edu · CAA
flags=0; tag=issue; value="amazon.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="digicert.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="entrust.net" - jhuapl.edu · CAA
flags=0; tag=issue; value="letsencrypt.org" - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=3600; signature=1b2cc540759a7a706ab49fb2b2bc3d4037c0d3a4c783ac10511b7e9555b5fcea6e1be58091aaf06f7496122d55eac3302680f3691dfd4392af047d44ebd6b580eb1c91ea85573e018cd7b45d91182c918b515fa1533a2b8121acb3b916a766fc949b64055f9ddf4c71b7e562656b27c0736596621280b8e8ef7a78b56e30c876; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=CAA
jhuapl.edu · DNSKEY
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=af38059fbfe64d1596e85c7407f51f02bb9f7509f8a6549a06c6cf3856b231b93d5bfe787b15b76fd3f1ec65bb131c4f6be8d4b8271cee5b16726ada58de647cbdd3c8f600f687fe6e238e0882f677b7fc03a8d30125bfb4e065948e66e5e329245ea948595b49764fd7d02b9a82fb8aa1ef89e3d2b673379346a3f89b4d267b; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=ebdd7b1c0096d23d6620c3295a8f513c3cb0fc50a141b84b24ee097f7e4203a6edb0def8f97e8b6aeb46b0500db68a00d7f5609f631eedb269766dbb9fd14d3f72b391cbfb8462df3cd606353e8334030a7200bd15e6d9fdaf972c68ba89f6e4a041af6760141117c52d8d82b9b13c0b9a94448f283ed91723e2a3abe5da50fb; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=257; pk_rsa_bitsize=2048; pk_rsa_e=010001; pk_rsa_n=a48a504086f987e754098ac1f6d5f85ec4cdddb2a9b36e02be10b618d5f139725cbb798550311b55268e37ab96a063d77a707acf2076a019e566cb5d21fb6bbd7e8824a183a1af40c33fd8791622ee605a9ba4afbb0f259bd58877c8e9b58eab31d71090173e17dd69c4d9e7032ef6ce1f9debdbad27599ba983ac3c6b0664f4a959ed59ac82e3a5a71531dd36c20db008003aee2603cfb7438c6e39d7e6010184c43a89b528999fb06271666e686094a6900757ce2542f25423f947ea328cf637aceef1cb7a31408e37ec3b1563fb19dea8ff92a40d9ec5aff9c4630fec1eff23fddeaba1e69374798e0f7c445ae68816f3b2d1ce2c275680c194222ab92105; protocol=3 - jhuapl.edu · RRSIG
algorithm=8; key_tag=45274; labels=2; original_ttl=7200; signature=3b62cb74b82513cf1aafb40c85c40cb5d58961870fa3ec831fc9672002bf2037480892f64af657dc1ab45380bd8a8d52293bea24e0c6da472d1f92e7472c67f25f6b20766a2f872e72f229f7c3e32f916baed3f171db46e90b1eda830d2f6703e9a7c19714f9dced2ca04e7e01bc405d4e9231b7852030f35a3c60ade6d2cfaf19d84afd9e8eac09fd48a371ffd9e7bbfa9200484028880f646228dfadae8cf0911573620e62c21920616aad2d194a91f09c08e0fef62b2a7592d33cee72f077866b33f07e4bad35be0d11e8e0fbc756a15e0762794e4a7434bc11282839ae2074805a987e72e06c4acb7eb3d482ad08c92893a55ef02676c32f30a4f7572cdf; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=DNSKEY
After: 2026-09-07 — Answer records observed
- jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=af38059fbfe64d1596e85c7407f51f02bb9f7509f8a6549a06c6cf3856b231b93d5bfe787b15b76fd3f1ec65bb131c4f6be8d4b8271cee5b16726ada58de647cbdd3c8f600f687fe6e238e0882f677b7fc03a8d30125bfb4e065948e66e5e329245ea948595b49764fd7d02b9a82fb8aa1ef89e3d2b673379346a3f89b4d267b; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=ebdd7b1c0096d23d6620c3295a8f513c3cb0fc50a141b84b24ee097f7e4203a6edb0def8f97e8b6aeb46b0500db68a00d7f5609f631eedb269766dbb9fd14d3f72b391cbfb8462df3cd606353e8334030a7200bd15e6d9fdaf972c68ba89f6e4a041af6760141117c52d8d82b9b13c0b9a94448f283ed91723e2a3abe5da50fb; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=257; pk_rsa_bitsize=2048; pk_rsa_e=010001; pk_rsa_n=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; protocol=3 - jhuapl.edu · RRSIG
algorithm=8; key_tag=45274; labels=2; original_ttl=7200; signature=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; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=DNSKEY
jhuapl.edu · DS
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · DS
algorithm=8; digest=aa1e8f90a33cec4b11680b9679263458354c855381c02b992404c44c253b39cc; digest_type=2; key_tag=45274 - jhuapl.edu · RRSIG
algorithm=13; key_tag=6705; labels=2; original_ttl=86400; signature=2b2b797f698d4d143efb2a252da0728c75c52cede81b85494a601a2c7087774976db36ed90bf5aeb5cf48f0124bd04833bc2d1f8d4cb86910454240ff7b80f73; signature_expiration=1788838456; signature_inception=1788229456; signer_name=edu; type_covered=DS
After: 2026-09-07 — Answer records observed
- jhuapl.edu · DS
algorithm=8; digest=aa1e8f90a33cec4b11680b9679263458354c855381c02b992404c44c253b39cc; digest_type=2; key_tag=45274 - jhuapl.edu · RRSIG
algorithm=13; key_tag=6705; labels=2; original_ttl=86400; signature=3d331b8bf31bdabed14959e8f7eb8c6e674b6793dd8b88c8cef3eb2ed32b73a7ebd8d2a10469334a5b3ac7d4db38c1927da8ea249a88292cb729552175cd2dde; signature_expiration=1789183935; signature_inception=1788574935; signer_name=edu; type_covered=DS
jhuapl.edu · MX
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · MX
30 aplegw15.jhuapl.edu - jhuapl.edu · MX
30 aplegw16.jhuapl.edu - jhuapl.edu · MX
50 aplegw11.jhuapl.edu - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=3600; signature=64a8f4a36549d027d535235c512f853f979b90d9e00a6a8a0426e4afeeee0ba1d9cb822e5051b651d27e6d0952482e5424fa3d16591a4e68a670a02da6f08c6bd1e7eb6d3f917eced070f3217ff5a58eed3ee306a94726bbba5d739e7fe32242d2864283da979cb37c34345afb42da83afc1f8a0abdac3c1eebcb435750229ad; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=MX
After: 2026-09-07 — Answer records observed
- jhuapl.edu · MX
30 aplegw15.jhuapl.edu - jhuapl.edu · MX
30 aplegw16.jhuapl.edu - jhuapl.edu · MX
50 aplegw11.jhuapl.edu - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=3600; signature=52a15ab8b09e27b9195ad81f23b4071c4b84480aba32c90946951d6ed998e678db70262b8f7f662ef2b23f20741773640f306a000d8aa6bad20a6d2c4587b967ec918afb64b345d1adadf8e33488284b7577cad050cce05b335ac4777c1baffb8f93551bbd6ca0ce3976507d08ee3a86606430cbde1bb0a56b86e4a129d0cbe5; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=MX
jhuapl.edu · NS
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · NS
a1-121.akam.net - jhuapl.edu · NS
a12-66.akam.net - jhuapl.edu · NS
a2-67.akam.net - jhuapl.edu · NS
a24-64.akam.net - jhuapl.edu · NS
a5-65.akam.net - jhuapl.edu · NS
a7-66.akam.net - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=28800; signature=a5ddfd302736a782ece982a028fdb384eba225aa6677c3b3beabf97c222a2a9147f3d024b573d5ddd36116ac5c26de3b4fa1877376b12fdbbdb5b0418a53063638a936e2785111042e733811ec7185d413198b93532a866c3cd9efd74eca292f4c033368fc221f55c7db926cd829e3833510f52fcb68079551c86d8f228bc336; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=NS
After: 2026-09-07 — Answer records observed
- jhuapl.edu · NS
a1-121.akam.net - jhuapl.edu · NS
a12-66.akam.net - jhuapl.edu · NS
a2-67.akam.net - jhuapl.edu · NS
a24-64.akam.net - jhuapl.edu · NS
a5-65.akam.net - jhuapl.edu · NS
a7-66.akam.net - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=28800; signature=16606899bd1f910c37a5bd79d3f58de4da1b146c57a5d73592f50993ddff9802ffcb849f46bf16378cdeefaded50d4ec74a15a9d2d31f82ddac0eee8123853c0c87463e87d5fe35934b10fd66d3607241c4283925c37946cd96dd06eaa9b59a8196d60452b7170f637fa0ba4f8892256e5aa7177894c6de30708f3a4c5a242bc; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=NS
jhuapl.edu · NSEC3PARAM
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · NSEC3PARAM
flags=0; hash_algorithm=1; iterations=0; salt=00 - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=600; signature=9bcec9ab18ebb2bf854791be442aac56b31d9e7ef8c7d1e01b8784270e103ad249080cdc6f5ce7187f2abdf686a4af16b829d16278200a540f9c916883cdae17e542be8b7c14967d536f7506a0daad53f24660b3707a1cf645fdc38b5fe1de992840bad7475135d6846ae31a0dffddeead7e80a08c791659bc00fbf3e4006e92; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=NSEC3PARAM
After: 2026-09-07 — Answer records observed
- jhuapl.edu · NSEC3PARAM
flags=0; hash_algorithm=1; iterations=0; salt=00 - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=600; signature=970fc7bebd71e7e429b65cbe256bd70002f6c98eadb90123823a8a3e5ae6dac7e1c493e2a1d586b833534d6919e078fdaf3eee69e18db30161af121aa113319c88071b06757df94986ac58bfee5a5f89303d26d4b90a90ba90d27cb86456cf37a2d8da41d918b15f1dd9df306e483607bfcc1e4882d87bc4d2c51306a76c6726; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=NSEC3PARAM
jhuapl.edu · SOA
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=28800; signature=7d8eb6214f944c3a400666511ff523a0ddec6b1b0bf6c9245d00fd88142a0e6f5ba6b6fc2df65c912607a251da57bc7a458c7330e7cb92461af39d6f501c764d425d43bb44af778aa776637230162042cb52bcee4c87294f04f375905e97c74bc0eb9ee1b3071bc54cd92d7835d0fb91c97a787da147627374e5d2b9571e165a; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=SOA - jhuapl.edu · SOA
expire=2592000; minimum=600; mname=infoblox-prod-gm.jhuapl.edu; refresh=10800; retry=1080; rname=nic-contact.jhuapl.edu; serial=14142271
After: 2026-09-07 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=28800; signature=ab096544cb2954ae05d80138021bbbdd37bfa1c17b051881cd37cb38456c2fee10160a2e740f14df0ce30e5f5ac7396305a48bdd8e9c79963d6e8837e1f53d5cf3440703fdf7842055a7311c02d545d9aa73ea2843e8d5d4aaaeabb885ce9a629db0607014c5eff72f1344108e5b8e8794bf7d0be427da432f45a7c59c98975a; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=SOA - jhuapl.edu · SOA
expire=2592000; minimum=600; mname=infoblox-prod-gm.jhuapl.edu; refresh=10800; retry=1080; rname=nic-contact.jhuapl.edu; serial=14142271
jhuapl.edu · TXT
Before: 2026-09-05 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=900; signature=94cc78e45e71582accffefc3fff0f4d6f9810b7720f1ef44e6473aad023d08ac3e58d227670c9104390afbb273485135febf8d36d2c98ab84e66c407f23ec388d93123447d084944a8e27c0d4b10bc1c3dd639e53079109d523b1d2e2a0adf666008f1af996bccfbeadd7ec78c6663ffbbecdfa4a4bf2e6a37af0123acaea17d; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=TXT Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=BEAF476F943E1201991908B95AFB9B197DEA8C91"Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=ms44522167"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_qgsf4f5mdnjvi3o9z3qee7b14jg7hh3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_we32bqtfs05ckaho8kqs2ru485nejyy"Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"adobe-idp-site-verification=ee049a8f-813b-442f-90b4-fd104f875f5d"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"anthropic-domain-verification-tq341b=oBCkdcyRUqosD3DhP3ANRHo14"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=RKLIFrIynQzP4pCG"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=aAvXTLQ4Un0PaStD"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"docker-verification=74707060-ea1a-48b1-b640-6a329db461d5"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=QpdBNAI3kyoR4wUsvRFq1jQ1YcTwNC2KEjmeKdHkd79Qga6mT09TAxSI2m7L3Rjp"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=gKvlwWd4Fvr6B8p6oDANh07xX64SwVcFrnwQldvasYnCkL88dgjZdAJlclcNO8I9"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"google-gws-recovery-domain-verification=61164235"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"jamf-site-verification=PeuuGuNBwj7C2p9253xp8g"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-mTnY3JilyjE1YCxsoAIVPAH3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-zu0mGeENBTYBhC5qeGTFobj5"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=sL3vQmrG3nMI3nlYRH4je7Zbrqo5ITqig05DxKHy"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=zRblbrJ3pYOQrzNlscjb4SjQ5oFdPvCs7w2EbHhT"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"smartsheet-gov-site-validation=Di-sr5F3KATp9iHxNT4Uw-dQgkFYqbfa"SPF: authorized mail senders; not proof that mail was sent.
Raw TXT value
jhuapl.edu · TXT"v=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all"
After: 2026-09-07 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=900; signature=c99cf40a28a493b4ac0f75856868180db33ea7728058136de53d02ee3bf06561862c751e68df6894513decb6e11438d755b54dae1f40a38403b5511581f287a55fa5af523301f04c2e7baed885f525ed05ab70e2e1876f301139823dee841844406e8859740ce04b9f00501ef2cf4d162425eb619443ef3358bb4be7e1b0d9e8; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=TXT Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=BEAF476F943E1201991908B95AFB9B197DEA8C91"Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=ms44522167"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_qgsf4f5mdnjvi3o9z3qee7b14jg7hh3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_we32bqtfs05ckaho8kqs2ru485nejyy"Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"adobe-idp-site-verification=ee049a8f-813b-442f-90b4-fd104f875f5d"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"anthropic-domain-verification-tq341b=oBCkdcyRUqosD3DhP3ANRHo14"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=RKLIFrIynQzP4pCG"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=aAvXTLQ4Un0PaStD"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"docker-verification=74707060-ea1a-48b1-b640-6a329db461d5"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=QpdBNAI3kyoR4wUsvRFq1jQ1YcTwNC2KEjmeKdHkd79Qga6mT09TAxSI2m7L3Rjp"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=gKvlwWd4Fvr6B8p6oDANh07xX64SwVcFrnwQldvasYnCkL88dgjZdAJlclcNO8I9"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"google-gws-recovery-domain-verification=61164235"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"jamf-site-verification=PeuuGuNBwj7C2p9253xp8g"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-mTnY3JilyjE1YCxsoAIVPAH3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-zu0mGeENBTYBhC5qeGTFobj5"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=sL3vQmrG3nMI3nlYRH4je7Zbrqo5ITqig05DxKHy"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=zRblbrJ3pYOQrzNlscjb4SjQ5oFdPvCs7w2EbHhT"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"smartsheet-gov-site-validation=Di-sr5F3KATp9iHxNT4Uw-dQgkFYqbfa"SPF: authorized mail senders; not proof that mail was sent.
Raw TXT value
jhuapl.edu · TXT"v=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all"
www.jhuapl.edu · A
Before: 2026-09-05 — Answer records observed
- e8856.dscb.akamaiedge.net · A
23.222.34.49 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=3; original_ttl=300; signature=2a61ff92b1fa7408b7a94de2508416bae2d98c90971f8e457fa7d437e3c7abf97da3475704669be508430da5aa913478f18247ef9ed66f79dfe6e93c31f4579552753bd4df3fa2c36e83961d8f41a4c6b288349b9df4908ad871985b7db8e2fb9b1e21bc8505e2c94bd5d20ffd4bb8316f7e1fa5289fe2c2b49785ce2707899a; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
After: 2026-09-07 — Answer records observed
- e8856.dscb.akamaiedge.net · A
88.221.70.253 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=3; original_ttl=300; signature=0c390cdc93a0e9612907d803406c9dd7d2e718290b40fad3aa5c862b9ae95060d381d3cb8e4feb9e75db333e2ec976637776455e0e7b789f554b68ef956ac06accadeb765b9a2f9116be688f7f939e961375aa01004c1d548bb20ed42e652f014b1c834b1d4ecb8fec3cda24aa4c86d55fbb17114946f2d5700b108a69bdbd5c; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
www.jhuapl.edu · AAAA
Before: 2026-09-05 — Answer records observed
- e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:6d00:58c::2298 - e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:6d00:59c::2298 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=3; original_ttl=300; signature=2a61ff92b1fa7408b7a94de2508416bae2d98c90971f8e457fa7d437e3c7abf97da3475704669be508430da5aa913478f18247ef9ed66f79dfe6e93c31f4579552753bd4df3fa2c36e83961d8f41a4c6b288349b9df4908ad871985b7db8e2fb9b1e21bc8505e2c94bd5d20ffd4bb8316f7e1fa5289fe2c2b49785ce2707899a; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
After: 2026-09-07 — Answer records observed
- e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:1180:186::2298 - e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:1180:18a::2298 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=3; original_ttl=300; signature=0c390cdc93a0e9612907d803406c9dd7d2e718290b40fad3aa5c862b9ae95060d381d3cb8e4feb9e75db333e2ec976637776455e0e7b789f554b68ef956ac06accadeb765b9a2f9116be688f7f939e961375aa01004c1d548bb20ed42e652f014b1c834b1d4ecb8fec3cda24aa4c86d55fbb17114946f2d5700b108a69bdbd5c; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
Available saved snapshots
2026-09-07
Each query below keeps its own observation date; unknown checks may retain older values.
_dmarc.jhuapl.edu · TXT
2026-09-07 — Answer records observed
- _dmarc.jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=3; original_ttl=3600; signature=46c56b8501eaf13426fa7cc03e5d5c8605d8650fa9a0bb8133ad5795254b02cb43dd28df51c853e9f5c7a3c1dfe739de10a7f261f30f86d517919f1dc1d0963ab7f8c0cb9afe9aaf4bc1fcd917f55d4eda6aab4279c6849ab63aea207ca4dc3227ef18f6237c723d5f2347b96f0caee25c1c4753c7504cfc5b9fd815d9f09f7b; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=TXT DMARC: published handling and reporting policy for authentication failures.
Raw TXT value
_dmarc.jhuapl.edu · TXT"v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:dmarc-aggdata@jhuapl.edu; ruf=mailto:dmarc-forensic@jhuapl.edu"
jhuapl.edu · A
2026-09-07 — Answer records observed
- jhuapl.edu · A
23.222.34.49 - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=20; signature=b4396019348a23e78a792e20e893d1e2b60541dd4d01d75cdc17889122b50d47718f80e1e97474f9e14da5d3e17ba691b4400b1c06ae0f0bb522aca24e5857a124af77b716aa49038162936fb96d51e0877af00688a983d2cf7718f276402e6ca99ac3bfa0b9a530aa1e9f36ec6596026f8dd3b81b3cdaca205502cd835c0da7; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=A
jhuapl.edu · AAAA
2026-09-07 — Answer records observed
- jhuapl.edu · AAAA
2a02:26f0:c900:188::2298 - jhuapl.edu · AAAA
2a02:26f0:c900:1b3::2298 - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=20; signature=790db61bdf7dbe2f4ad7892f272979abd335ae871e3e05fb1da4aa3cf2952b7eddf2cd656bcafafdf33640dc56d14ff80448ec7c8202d2cf0a5725a5c35d383a6cdd4931c9294b15aacf071dca2f1829406d9a96afdf04993409ec55cccf69f2d66cae0f4e49dbc006f88453b0c24db0e63fb96da9bd0632fb48daedd166c2ec; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=AAAA
jhuapl.edu · CAA
2026-09-07 — Answer records observed
- jhuapl.edu · CAA
flags=0; tag=issue; value="amazon.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="digicert.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="entrust.net" - jhuapl.edu · CAA
flags=0; tag=issue; value="letsencrypt.org" - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=3600; signature=1b2cc540759a7a706ab49fb2b2bc3d4037c0d3a4c783ac10511b7e9555b5fcea6e1be58091aaf06f7496122d55eac3302680f3691dfd4392af047d44ebd6b580eb1c91ea85573e018cd7b45d91182c918b515fa1533a2b8121acb3b916a766fc949b64055f9ddf4c71b7e562656b27c0736596621280b8e8ef7a78b56e30c876; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=CAA
jhuapl.edu · DNSKEY
2026-09-07 — Answer records observed
- jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=af38059fbfe64d1596e85c7407f51f02bb9f7509f8a6549a06c6cf3856b231b93d5bfe787b15b76fd3f1ec65bb131c4f6be8d4b8271cee5b16726ada58de647cbdd3c8f600f687fe6e238e0882f677b7fc03a8d30125bfb4e065948e66e5e329245ea948595b49764fd7d02b9a82fb8aa1ef89e3d2b673379346a3f89b4d267b; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=ebdd7b1c0096d23d6620c3295a8f513c3cb0fc50a141b84b24ee097f7e4203a6edb0def8f97e8b6aeb46b0500db68a00d7f5609f631eedb269766dbb9fd14d3f72b391cbfb8462df3cd606353e8334030a7200bd15e6d9fdaf972c68ba89f6e4a041af6760141117c52d8d82b9b13c0b9a94448f283ed91723e2a3abe5da50fb; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=257; pk_rsa_bitsize=2048; pk_rsa_e=010001; pk_rsa_n=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; protocol=3 - jhuapl.edu · RRSIG
algorithm=8; key_tag=45274; labels=2; original_ttl=7200; signature=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; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=DNSKEY
jhuapl.edu · DS
2026-09-07 — Answer records observed
- jhuapl.edu · DS
algorithm=8; digest=aa1e8f90a33cec4b11680b9679263458354c855381c02b992404c44c253b39cc; digest_type=2; key_tag=45274 - jhuapl.edu · RRSIG
algorithm=13; key_tag=6705; labels=2; original_ttl=86400; signature=3d331b8bf31bdabed14959e8f7eb8c6e674b6793dd8b88c8cef3eb2ed32b73a7ebd8d2a10469334a5b3ac7d4db38c1927da8ea249a88292cb729552175cd2dde; signature_expiration=1789183935; signature_inception=1788574935; signer_name=edu; type_covered=DS
jhuapl.edu · MX
2026-09-07 — Answer records observed
- jhuapl.edu · MX
30 aplegw15.jhuapl.edu - jhuapl.edu · MX
30 aplegw16.jhuapl.edu - jhuapl.edu · MX
50 aplegw11.jhuapl.edu - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=3600; signature=52a15ab8b09e27b9195ad81f23b4071c4b84480aba32c90946951d6ed998e678db70262b8f7f662ef2b23f20741773640f306a000d8aa6bad20a6d2c4587b967ec918afb64b345d1adadf8e33488284b7577cad050cce05b335ac4777c1baffb8f93551bbd6ca0ce3976507d08ee3a86606430cbde1bb0a56b86e4a129d0cbe5; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=MX
jhuapl.edu · NS
2026-09-07 — Answer records observed
- jhuapl.edu · NS
a1-121.akam.net - jhuapl.edu · NS
a12-66.akam.net - jhuapl.edu · NS
a2-67.akam.net - jhuapl.edu · NS
a24-64.akam.net - jhuapl.edu · NS
a5-65.akam.net - jhuapl.edu · NS
a7-66.akam.net - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=28800; signature=16606899bd1f910c37a5bd79d3f58de4da1b146c57a5d73592f50993ddff9802ffcb849f46bf16378cdeefaded50d4ec74a15a9d2d31f82ddac0eee8123853c0c87463e87d5fe35934b10fd66d3607241c4283925c37946cd96dd06eaa9b59a8196d60452b7170f637fa0ba4f8892256e5aa7177894c6de30708f3a4c5a242bc; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=NS
jhuapl.edu · NSEC3PARAM
2026-09-07 — Answer records observed
- jhuapl.edu · NSEC3PARAM
flags=0; hash_algorithm=1; iterations=0; salt=00 - jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=600; signature=970fc7bebd71e7e429b65cbe256bd70002f6c98eadb90123823a8a3e5ae6dac7e1c493e2a1d586b833534d6919e078fdaf3eee69e18db30161af121aa113319c88071b06757df94986ac58bfee5a5f89303d26d4b90a90ba90d27cb86456cf37a2d8da41d918b15f1dd9df306e483607bfcc1e4882d87bc4d2c51306a76c6726; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=NSEC3PARAM
jhuapl.edu · SOA
2026-09-07 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=28800; signature=ab096544cb2954ae05d80138021bbbdd37bfa1c17b051881cd37cb38456c2fee10160a2e740f14df0ce30e5f5ac7396305a48bdd8e9c79963d6e8837e1f53d5cf3440703fdf7842055a7311c02d545d9aa73ea2843e8d5d4aaaeabb885ce9a629db0607014c5eff72f1344108e5b8e8794bf7d0be427da432f45a7c59c98975a; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=SOA - jhuapl.edu · SOA
expire=2592000; minimum=600; mname=infoblox-prod-gm.jhuapl.edu; refresh=10800; retry=1080; rname=nic-contact.jhuapl.edu; serial=14142271
jhuapl.edu · TXT
2026-09-07 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=2; original_ttl=900; signature=c99cf40a28a493b4ac0f75856868180db33ea7728058136de53d02ee3bf06561862c751e68df6894513decb6e11438d755b54dae1f40a38403b5511581f287a55fa5af523301f04c2e7baed885f525ed05ab70e2e1876f301139823dee841844406e8859740ce04b9f00501ef2cf4d162425eb619443ef3358bb4be7e1b0d9e8; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=TXT Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=BEAF476F943E1201991908B95AFB9B197DEA8C91"Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=ms44522167"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_qgsf4f5mdnjvi3o9z3qee7b14jg7hh3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_we32bqtfs05ckaho8kqs2ru485nejyy"Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"adobe-idp-site-verification=ee049a8f-813b-442f-90b4-fd104f875f5d"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"anthropic-domain-verification-tq341b=oBCkdcyRUqosD3DhP3ANRHo14"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=RKLIFrIynQzP4pCG"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=aAvXTLQ4Un0PaStD"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"docker-verification=74707060-ea1a-48b1-b640-6a329db461d5"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=QpdBNAI3kyoR4wUsvRFq1jQ1YcTwNC2KEjmeKdHkd79Qga6mT09TAxSI2m7L3Rjp"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=gKvlwWd4Fvr6B8p6oDANh07xX64SwVcFrnwQldvasYnCkL88dgjZdAJlclcNO8I9"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"google-gws-recovery-domain-verification=61164235"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"jamf-site-verification=PeuuGuNBwj7C2p9253xp8g"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-mTnY3JilyjE1YCxsoAIVPAH3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-zu0mGeENBTYBhC5qeGTFobj5"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=sL3vQmrG3nMI3nlYRH4je7Zbrqo5ITqig05DxKHy"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=zRblbrJ3pYOQrzNlscjb4SjQ5oFdPvCs7w2EbHhT"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"smartsheet-gov-site-validation=Di-sr5F3KATp9iHxNT4Uw-dQgkFYqbfa"SPF: authorized mail senders; not proof that mail was sent.
Raw TXT value
jhuapl.edu · TXT"v=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all"
www.jhuapl.edu · A
2026-09-07 — Answer records observed
- e8856.dscb.akamaiedge.net · A
88.221.70.253 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=3; original_ttl=300; signature=0c390cdc93a0e9612907d803406c9dd7d2e718290b40fad3aa5c862b9ae95060d381d3cb8e4feb9e75db333e2ec976637776455e0e7b789f554b68ef956ac06accadeb765b9a2f9116be688f7f939e961375aa01004c1d548bb20ed42e652f014b1c834b1d4ecb8fec3cda24aa4c86d55fbb17114946f2d5700b108a69bdbd5c; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
www.jhuapl.edu · AAAA
2026-09-07 — Answer records observed
- e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:1180:186::2298 - e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:1180:18a::2298 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=46195; labels=3; original_ttl=300; signature=0c390cdc93a0e9612907d803406c9dd7d2e718290b40fad3aa5c862b9ae95060d381d3cb8e4feb9e75db333e2ec976637776455e0e7b789f554b68ef956ac06accadeb765b9a2f9116be688f7f939e961375aa01004c1d548bb20ed42e652f014b1c834b1d4ecb8fec3cda24aa4c86d55fbb17114946f2d5700b108a69bdbd5c; signature_expiration=1788942259; signature_inception=1788679459; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
2026-09-05
Each query below keeps its own observation date; unknown checks may retain older values.
_dmarc.jhuapl.edu · TXT
2026-09-05 — Answer records observed
- _dmarc.jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=3; original_ttl=3600; signature=5e6578cf80d4d2cec53e2624a2cc3eccf3a42e27018db1c3c605b55ef8b1fb8ffe8a187592c477cc89b5d3934949384e511917534ebfbf10f44b1abe5a9c5c384ecab7dbec0bf84fd826c791ba2d3e6684265ab62717017e32cac50746354080ab21c2b9e499d7512904ecb3f353c0aaf8c1d1313fcbd3f2094bec8e275b66dc; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=TXT DMARC: published handling and reporting policy for authentication failures.
Raw TXT value
_dmarc.jhuapl.edu · TXT"v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:dmarc-aggdata@jhuapl.edu; ruf=mailto:dmarc-forensic@jhuapl.edu"
jhuapl.edu · A
2026-09-05 — Answer records observed
- jhuapl.edu · A
23.42.175.97 - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=20; signature=292753331df61741fd15b03f82a6d9625ec011390a5244189a1412141ffc04cefd64f6c935fb2ae18cf27c95c0ae7461432e4de611e585845943080c94c8f377c37919f31f87ec7f07b22c096310870114b46366e33e802b40ca952711a96230b914bcce9b6c0b376476037a69a6fbf61a5ecfebedbd69f21f7fc311c16bc02f; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=A
jhuapl.edu · AAAA
2026-09-05 — Answer records observed
- jhuapl.edu · AAAA
2a02:26f0:1180:186::2298 - jhuapl.edu · AAAA
2a02:26f0:1180:18a::2298 - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=20; signature=6115bd64ba10d77e3dc542058430968408adcb4da7a4a130dccd4b01738f0236d413d40b3f153acb75eabcf278c1774f02cc69055270ce2223e3761f92fe6abc320c31d44de439448f92de72bc0a67aee6a93fa7ee69a8a5d8f77760e75d19d4026bc431a21ed3d7541ea61816dd288905e36f6ad79d5f70d7847a204572922b; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=AAAA
jhuapl.edu · CAA
2026-09-05 — Answer records observed
- jhuapl.edu · CAA
flags=0; tag=issue; value="amazon.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="digicert.com" - jhuapl.edu · CAA
flags=0; tag=issue; value="entrust.net" - jhuapl.edu · CAA
flags=0; tag=issue; value="letsencrypt.org" - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=3600; signature=37191617a14360be4c1012d8caf5632a944116d8b999bfc3b7e857b39990b4bcc5f8ca94eaf1f6d5c6205c95e260288a1a669a8fb275712ca2be3d5414085a26c90d03358225c06e6cce34b36f406773ffcd35e8625d9a09b679ae9b005a807711694f39bdb718cb558230d339a42aaf933a216645b910f611a2fd82d47aecd1; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=CAA
jhuapl.edu · DNSKEY
2026-09-05 — Answer records observed
- jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=af38059fbfe64d1596e85c7407f51f02bb9f7509f8a6549a06c6cf3856b231b93d5bfe787b15b76fd3f1ec65bb131c4f6be8d4b8271cee5b16726ada58de647cbdd3c8f600f687fe6e238e0882f677b7fc03a8d30125bfb4e065948e66e5e329245ea948595b49764fd7d02b9a82fb8aa1ef89e3d2b673379346a3f89b4d267b; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=256; pk_rsa_bitsize=1024; pk_rsa_e=010001; pk_rsa_n=ebdd7b1c0096d23d6620c3295a8f513c3cb0fc50a141b84b24ee097f7e4203a6edb0def8f97e8b6aeb46b0500db68a00d7f5609f631eedb269766dbb9fd14d3f72b391cbfb8462df3cd606353e8334030a7200bd15e6d9fdaf972c68ba89f6e4a041af6760141117c52d8d82b9b13c0b9a94448f283ed91723e2a3abe5da50fb; protocol=3 - jhuapl.edu · DNSKEY
algorithm=8; flags=257; pk_rsa_bitsize=2048; pk_rsa_e=010001; pk_rsa_n=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; protocol=3 - jhuapl.edu · RRSIG
algorithm=8; key_tag=45274; labels=2; original_ttl=7200; signature=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; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=DNSKEY
jhuapl.edu · DS
2026-09-05 — Answer records observed
- jhuapl.edu · DS
algorithm=8; digest=aa1e8f90a33cec4b11680b9679263458354c855381c02b992404c44c253b39cc; digest_type=2; key_tag=45274 - jhuapl.edu · RRSIG
algorithm=13; key_tag=6705; labels=2; original_ttl=86400; signature=2b2b797f698d4d143efb2a252da0728c75c52cede81b85494a601a2c7087774976db36ed90bf5aeb5cf48f0124bd04833bc2d1f8d4cb86910454240ff7b80f73; signature_expiration=1788838456; signature_inception=1788229456; signer_name=edu; type_covered=DS
jhuapl.edu · MX
2026-09-05 — Answer records observed
- jhuapl.edu · MX
30 aplegw15.jhuapl.edu - jhuapl.edu · MX
30 aplegw16.jhuapl.edu - jhuapl.edu · MX
50 aplegw11.jhuapl.edu - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=3600; signature=64a8f4a36549d027d535235c512f853f979b90d9e00a6a8a0426e4afeeee0ba1d9cb822e5051b651d27e6d0952482e5424fa3d16591a4e68a670a02da6f08c6bd1e7eb6d3f917eced070f3217ff5a58eed3ee306a94726bbba5d739e7fe32242d2864283da979cb37c34345afb42da83afc1f8a0abdac3c1eebcb435750229ad; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=MX
jhuapl.edu · NS
2026-09-05 — Answer records observed
- jhuapl.edu · NS
a1-121.akam.net - jhuapl.edu · NS
a12-66.akam.net - jhuapl.edu · NS
a2-67.akam.net - jhuapl.edu · NS
a24-64.akam.net - jhuapl.edu · NS
a5-65.akam.net - jhuapl.edu · NS
a7-66.akam.net - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=28800; signature=a5ddfd302736a782ece982a028fdb384eba225aa6677c3b3beabf97c222a2a9147f3d024b573d5ddd36116ac5c26de3b4fa1877376b12fdbbdb5b0418a53063638a936e2785111042e733811ec7185d413198b93532a866c3cd9efd74eca292f4c033368fc221f55c7db926cd829e3833510f52fcb68079551c86d8f228bc336; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=NS
jhuapl.edu · NSEC3PARAM
2026-09-05 — Answer records observed
- jhuapl.edu · NSEC3PARAM
flags=0; hash_algorithm=1; iterations=0; salt=00 - jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=600; signature=9bcec9ab18ebb2bf854791be442aac56b31d9e7ef8c7d1e01b8784270e103ad249080cdc6f5ce7187f2abdf686a4af16b829d16278200a540f9c916883cdae17e542be8b7c14967d536f7506a0daad53f24660b3707a1cf645fdc38b5fe1de992840bad7475135d6846ae31a0dffddeead7e80a08c791659bc00fbf3e4006e92; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=NSEC3PARAM
jhuapl.edu · SOA
2026-09-05 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=28800; signature=7d8eb6214f944c3a400666511ff523a0ddec6b1b0bf6c9245d00fd88142a0e6f5ba6b6fc2df65c912607a251da57bc7a458c7330e7cb92461af39d6f501c764d425d43bb44af778aa776637230162042cb52bcee4c87294f04f375905e97c74bc0eb9ee1b3071bc54cd92d7835d0fb91c97a787da147627374e5d2b9571e165a; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=SOA - jhuapl.edu · SOA
expire=2592000; minimum=600; mname=infoblox-prod-gm.jhuapl.edu; refresh=10800; retry=1080; rname=nic-contact.jhuapl.edu; serial=14142271
jhuapl.edu · TXT
2026-09-05 — Answer records observed
- jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=2; original_ttl=900; signature=94cc78e45e71582accffefc3fff0f4d6f9810b7720f1ef44e6473aad023d08ac3e58d227670c9104390afbb273485135febf8d36d2c98ab84e66c407f23ec388d93123447d084944a8e27c0d4b10bc1c3dd639e53079109d523b1d2e2a0adf666008f1af996bccfbeadd7ec78c6663ffbbecdfa4a4bf2e6a37af0123acaea17d; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=TXT Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=BEAF476F943E1201991908B95AFB9B197DEA8C91"Domain-control verification for Microsoft; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"MS=ms44522167"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_qgsf4f5mdnjvi3o9z3qee7b14jg7hh3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"_we32bqtfs05ckaho8kqs2ru485nejyy"Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"adobe-idp-site-verification=ee049a8f-813b-442f-90b4-fd104f875f5d"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"anthropic-domain-verification-tq341b=oBCkdcyRUqosD3DhP3ANRHo14"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=RKLIFrIynQzP4pCG"Domain-control verification for Apple; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"apple-domain-verification=aAvXTLQ4Un0PaStD"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"docker-verification=74707060-ea1a-48b1-b640-6a329db461d5"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=QpdBNAI3kyoR4wUsvRFq1jQ1YcTwNC2KEjmeKdHkd79Qga6mT09TAxSI2m7L3Rjp"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"duo_sso_verification=gKvlwWd4Fvr6B8p6oDANh07xX64SwVcFrnwQldvasYnCkL88dgjZdAJlclcNO8I9"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"google-gws-recovery-domain-verification=61164235"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"jamf-site-verification=PeuuGuNBwj7C2p9253xp8g"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-mTnY3JilyjE1YCxsoAIVPAH3"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"openai-domain-verification=dv-zu0mGeENBTYBhC5qeGTFobj5"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=sL3vQmrG3nMI3nlYRH4je7Zbrqo5ITqig05DxKHy"Domain-control verification for Slack; not proof of active SaaS or mail use.
Raw TXT value
jhuapl.edu · TXT"slack-domain-verification=zRblbrJ3pYOQrzNlscjb4SjQ5oFdPvCs7w2EbHhT"Other TXT data; its purpose is not established by this measurement.
Raw TXT value
jhuapl.edu · TXT"smartsheet-gov-site-validation=Di-sr5F3KATp9iHxNT4Uw-dQgkFYqbfa"SPF: authorized mail senders; not proof that mail was sent.
Raw TXT value
jhuapl.edu · TXT"v=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all"
www.jhuapl.edu · A
2026-09-05 — Answer records observed
- e8856.dscb.akamaiedge.net · A
23.222.34.49 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=3; original_ttl=300; signature=2a61ff92b1fa7408b7a94de2508416bae2d98c90971f8e457fa7d437e3c7abf97da3475704669be508430da5aa913478f18247ef9ed66f79dfe6e93c31f4579552753bd4df3fa2c36e83961d8f41a4c6b288349b9df4908ad871985b7db8e2fb9b1e21bc8505e2c94bd5d20ffd4bb8316f7e1fa5289fe2c2b49785ce2707899a; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
www.jhuapl.edu · AAAA
2026-09-05 — Answer records observed
- e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:6d00:58c::2298 - e8856.dscb.akamaiedge.net · AAAA
2a02:26f0:6d00:59c::2298 - www.jhuapl.edu · CNAME
www.jhuapl.edu.edgekey.net - www.jhuapl.edu · RRSIG
algorithm=8; key_tag=5884; labels=3; original_ttl=300; signature=2a61ff92b1fa7408b7a94de2508416bae2d98c90971f8e457fa7d437e3c7abf97da3475704669be508430da5aa913478f18247ef9ed66f79dfe6e93c31f4579552753bd4df3fa2c36e83961d8f41a4c6b288349b9df4908ad871985b7db8e2fb9b1e21bc8505e2c94bd5d20ffd4bb8316f7e1fa5289fe2c2b49785ce2707899a; signature_expiration=1788812659; signature_inception=1788549859; signer_name=jhuapl.edu; type_covered=CNAME - www.jhuapl.edu.edgekey.net · CNAME
e8856.dscb.akamaiedge.net
Changes to jhuapl.edu
No entry for this domain appears in the current public change feed. The feed is a selected sample, so this does not establish that its DNS stayed unchanged.
Start monitoring to build a history from your first check, or explore observed changes across the dataset.
SPF diagnostics
Static observations from the published SPF record. No nested include or redirect dependencies were evaluated. The actual sending IP and evaluation path are needed to assess the RFC 7208 limit of 10 DNS-dependent terms.
Modern mail security across the dataset
The required DNS labels are not queried. Adoption is unknown for this domain and for the population. Apex TXT anomalies are listed separately in the security posture report.
Reverse DNS of inbound MX hosts
These are separately dated observations of inbound MX addresses. They do not identify the actual sending IP. To assess outbound mail, check current forward and reverse DNS of the actual sending IP; FCrDNS and delivery were not measured here.
aplegw15.jhuapl.edu
PTR records were observed for all returned addresses of this MX.
DNS attempt: 2026-09-08 06:16:26 UTC. 1 of 1 addresses queried; 1 definite address results in the saved observation.
| Observed IP | Observed PTR names | DNS observation |
|---|---|---|
128.244.43.7 | aplegw15.jhuapl.edu | PTR observed |
Observed PTR names belong to this domain or its subdomains. Name relationships are not a forward-confirmed reverse DNS test.
aplegw16.jhuapl.edu
PTR records were observed for all returned addresses of this MX.
DNS attempt: 2026-09-08 06:16:26 UTC. 1 of 1 addresses queried; 1 definite address results in the saved observation.
| Observed IP | Observed PTR names | DNS observation |
|---|---|---|
128.244.43.8 | aplegw16.jhuapl.edu | PTR observed |
Observed PTR names belong to this domain or its subdomains. Name relationships are not a forward-confirmed reverse DNS test.
aplegw11.jhuapl.edu
PTR records were observed for all returned addresses of this MX.
DNS attempt: 2026-09-08 06:16:26 UTC. 1 of 1 addresses queried; 1 definite address results in the saved observation.
| Observed IP | Observed PTR names | DNS observation |
|---|---|---|
128.244.43.6 | aplegw11.jhuapl.edu | PTR observed |
Observed PTR names belong to this domain or its subdomains. Name relationships are not a forward-confirmed reverse DNS test.
Where jhuapl.edu stands
The same snapshot cut by zone, by list position and by how alive the published policies are.
- At this list position the top three mailbox providers hold 60.1% of domains (Google Workspace, Microsoft 365, Unknown / Other).
- Across the dataset 25.1% of DMARC records are inert — policy does nothing and no reports are collected.
How to interpret these observations
MX identifies the observed inbound mailbox or gateway. SPF includes identify services authorised to send for the domain. DMARC shows the published authentication policy. The dataset currently contains 2 populated signal groups for this page.
Observed deliverability context: based on the available observations, this page describes DNS configuration only. It does not represent a complete audit of jhuapl.edu and does not prove that a particular message reaches the inbox or spam folder.
Frequently asked questions
What email provider does jhuapl.edu use?
jhuapl.edu uses Self-Hosted for inbound mail (detected from its primary MX record) as of September 7, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
Does jhuapl.edu enforce DMARC?
No — jhuapl.edu publishes p=none, which only monitors and does not block spoofing (as of September 7, 2026).
Related domain statistics
Nearby domains in the Tranco ranking: temporal.xyz · infospace.com · centurylink.com · junglescout.com
Browse provider data · Compare historical periods · Run an inbox placement test
Data: Email infrastructure of the Tranco top-1M, daily snapshot 2026-09-07, derived from OpenINTEL forward-DNS measurements. Cite with the date — records change daily.