Email infrastructure of carfax.com

According to Live Direct Marketing's daily DNS scan (September 7, 2026), carfax.com (Tranco rank #4,109) points its inbound MX to Microsoft 365 and authorizes Marketo (Adobe), Salesforce in SPF. Its observed DMARC policy is p=quarantine. Across this dataset, 47% of DMARC publishers use an enforcing policy; this does not show where a specific message landed.

Last updated: .

Mailbox provider (MX)Microsoft 365
ESPs in SPFMarketo (Adobe), Salesforce
SaaS senders in SPFServiceNow
DMARC policyp=quarantine
DMARC recordv=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc_reports@carfax.com, mailto:carfax@us.cp-dmarc.com; ruf=mailto:dmarc_reports@carfax.com, mailto:carfax@us.cp-dmarc.com; sp=none; ri=86400
Tranco rank#4,109
Snapshot2026-09-07 (updated daily)

Keep an eye on carfax.com

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How carfax.com 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 Microsoft 365

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.

carfax.com · A — Answer records observed

IPv4 addresses for this name. They do not identify the mail server or prove a hosting migration.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • carfax.com · A · TTL 60 s · 2026-09-07T00:32:48Z · AD=0
    18.238.243.115
  • carfax.com · A · TTL 60 s · 2026-09-07T00:32:48Z · AD=0
    18.238.243.14
  • carfax.com · A · TTL 60 s · 2026-09-07T00:32:48Z · AD=0
    18.238.243.27
  • carfax.com · A · TTL 60 s · 2026-09-07T00:32:48Z · AD=0
    18.238.243.51
carfax.com · AAAA — Unknown: no conclusive answer in this capture

IPv6 addresses for this name. An address record does not test service availability.

carfax.com · NS — Answer records observed

Name servers listed for the DNS zone.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    dns1.p07.nsone.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    dns2.p07.nsone.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    dns3.p07.nsone.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    dns4.p07.nsone.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    ns01.carfaxdns.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    ns02.carfaxdns.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    ns03.carfaxdns.net.
  • carfax.com · NS · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    ns04.carfaxdns.net.
carfax.com · MX — Answer records observed

Servers named to receive mail. Lower preference numbers are tried first.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • carfax.com · MX · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    5 carfax-com.mail.protection.outlook.com.
carfax.com · SOA — Answer records observed

Zone administration data. The serial is a version number, not a creation date or clock.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • carfax.com · SOA · TTL 86400 s · 2026-09-07T00:32:48Z · AD=0
    expire=2592000; minimum=1800; mname=dns1.p07.nsone.net.; refresh=10800; retry=3600; rname=hostmaster.nsone.net.; serial=1653665910
carfax.com · CAA — Unknown: no conclusive answer in this capture

Rules for certificate issuance. These do not show whether an existing certificate is valid.

carfax.com · TXT — Answer records observed

Text records can publish mail policies, domain-control challenges or other data.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "+1gYTj2ybp4ginYrkDrv8JI1bmiCFyUkfR6T2wKAhbJYTrADOAlUkC+cN8Cs5EaLvgvdrz2b5OHom7QTrCqk4A=="

  • Domain-control verification for Microsoft; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "MS=ms39282613"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "_umy37x07jsle67n2mm4y5ny6x6993lk"

  • Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "adobe-idp-site-verification=8a1c40b589be62d6dd8e4ea207db8a0b63ff097c2addd1b2b8adc726506214d8"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "anthropic-domain-verification-rcz2fg=For92SmgeFZ0XvKlwwOCYtidg"

  • Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "atlassian-domain-verification=SYhO1JH2NzuVRk1D9y3vC2CoIZww7IOjZGw2UH4oxbcguZ0lP/OUFoGTeBSKHfF3"

  • Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "atlassian-domain-verification=a6z15VTxtEFUry6WVe9zIrZYtI4cM54IAOqIyNUAgGyi2TAEpuJaPvhBH14xrIRB"

  • Domain-control verification for Atlassian Mail Sending; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "atlassian-sending-domain-verification=bb990bab-c513-40eb-b8bf-0b3905e567a7"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "docker-verification=9751618e-fa9c-4233-b089-7dc8458d6e4d"

  • Domain-control verification for DocuSign; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "docusign=4cc0b50b-e7fd-4cbc-9cf9-e77f3baa9bbe"

  • Domain-control verification for DocuSign; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "docusign=d0a7b43e-df13-4b90-b1ee-dbd8fb8e6ec6"

  • Domain-control verification for Meta (Facebook); not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "facebook-domain-verification=tzffe7rfkg6qd3nv09mz085o8sf30b"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=C0yWimJw3i37MDb16YH3ovBHLlWT1sYHGBpZ813OXGU"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=ElnDIk1K7wudCpLY74UVeIF_P_rpuYffEewgNQg5Vpw"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=IgHNI3QfU5g2FjemSmucwZEHUYUrSr4EEknFGTlSvQ8"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=NXUcSUT8rbkkfw3n_-8EnulgEcKb4GXsBJmS4EZgEgg"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=fhcRZ9QWfQPZyXv_PY1h0PpjtS_EMgJnx3ZoSJAuZD4"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=wYGren5BFyrMdmXY-ZwU-GP5qousDA7X1tZvyyif32w"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=xiDjdJ47YHOyZtMo4cPyUfEU0Cim33LmdNzlhVl2TMc"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "google-site-verification=xwQXBiDa_n-VxLNtXWjPjtErLwHVkUUMmuxRe1nCjWE"

  • Domain-control verification for HackerOne; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "h1-domain-verification=RcqX5VWiUETfb6trmCWQfCfahhHY9YUoETnajJCjKLnh6Gi3"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "infoblox-domain-mastery=fd63c8a7d25b000faacdc87043ccefe82c3ad3c1cd84845c95d4a5b620baf521fa"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "jamf-site-verification=t99kZMMyh-NHyu8IawByMw"

  • Domain-control verification for Miro; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "miro-verification=071e9ff0059a15166ef41912d2271e4eb835684e"

  • Domain-control verification for MongoDB Atlas; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "mongodb-site-verification=SHiuYspaJxhGuM3wYH1ECSQZCSJbjUWT"

  • Domain-control verification for MongoDB Atlas; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "mongodb-site-verification=pGWSBys4XwWG9OC3lPpbKCqWkfoGDYyd"

  • Domain-control verification for OneTrust; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "onetrust-domain-verification=4fe84ade0aa649449888ee7d3471328c"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "paloaltonetworks-site-verification=58f53ee61c0016e4f50c5fb603b53ec62d056b0d5a225f1c2a3f4278e70cd875"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "parsec-domain-verification=td_3BR28LnhFgRf60w92s3oztPIIqH"

  • Domain-control verification for Slack; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "slack-domain-verification=U9KKuwJ4IKNtaan89p70NITffabWUCuiQwZnccgs"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "smartsheet-site-validation=-Xj_6Y3NA-r2hvMxKQvtQUL1tqSQvLAS"

  • SPF: authorized mail senders; not proof that mail was sent.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "v=spf1 ip4:40.114.51.96 ip4:64.193.21.0/24 ip4:166.90.97.0/24 ip4:216.117.25.0/24 ip4:216.117.92.0/24 ip4:216.117.105.0/24 ip4:20.242.10.187/32 include:mktomail.com include:service-now.com include:_spf.salesforce.com include:spf.protection.outlook.com inc""lude:carfax.us include:5bd90f.workshop-spf.net -all"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "vertexinc-cloud-8015bff2-abb5-481d-a9a7-8ccb9d8dcc66"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "wiz-domain-verification=76627b2240349ea6078b158a119c2067b05f8a8bb48eba283a51c51246d50179"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "zscaler-verification-81298-10032026-6vki3d13pS"
carfax.com · DNSKEY — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

carfax.com · DS — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

carfax.com · CDS — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

carfax.com · CDNSKEY — Unknown: no conclusive answer in this capture

DNSSEC key, signature or denial-of-existence data observed in this response.

www.carfax.com · A — Answer records observed

IPv4 addresses for this name. They do not identify the mail server or prove a hosting migration.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • www.carfax.com · A · TTL 60 s · 2026-09-07T00:32:48Z · AD=0
    216.117.25.115
www.carfax.com · AAAA — Unknown: no conclusive answer in this capture

IPv6 addresses for this name. An address record does not test service availability.

_dmarc.carfax.com · TXT — Answer records observed

Text records can publish mail policies, domain-control challenges or other data.

Query observed at: 2026-09-07T00:32:48Z.

Response code: 0.

  • DMARC: published handling and reporting policy for authentication failures.

    Raw TXT value_dmarc.carfax.com · TXT · TTL 3600 s · 2026-09-07T00:32:48Z · AD=0
    "v=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc_reports@carfax.com, mailto:carfax@us.cp-dmarc.com; ruf=mailto:dmarc_reports@carfax.com, mailto:carfax@us.cp-dmarc.com; sp=none; ri=86400"

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.

No earlier different RR snapshot is available for comparison.

Available saved snapshots
2026-09-07 (equivalent state also recorded on 2026-09-05)

Each query below keeps its own observation date; unknown checks may retain older values.

_dmarc.carfax.com · TXT

2026-09-07 — Answer records observed

  • DMARC: published handling and reporting policy for authentication failures.

    Raw TXT value_dmarc.carfax.com · TXT
    "v=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc_reports@carfax.com, mailto:carfax@us.cp-dmarc.com; ruf=mailto:dmarc_reports@carfax.com, mailto:carfax@us.cp-dmarc.com; sp=none; ri=86400"

carfax.com · A

2026-09-07 — Answer records observed

  • carfax.com · A
    18.238.243.115
  • carfax.com · A
    18.238.243.14
  • carfax.com · A
    18.238.243.27
  • carfax.com · A
    18.238.243.51

carfax.com · MX

2026-09-07 — Answer records observed

  • carfax.com · MX
    5 carfax-com.mail.protection.outlook.com

carfax.com · NS

2026-09-07 — Answer records observed

  • carfax.com · NS
    dns1.p07.nsone.net
  • carfax.com · NS
    dns2.p07.nsone.net
  • carfax.com · NS
    dns3.p07.nsone.net
  • carfax.com · NS
    dns4.p07.nsone.net
  • carfax.com · NS
    ns01.carfaxdns.net
  • carfax.com · NS
    ns02.carfaxdns.net
  • carfax.com · NS
    ns03.carfaxdns.net
  • carfax.com · NS
    ns04.carfaxdns.net

carfax.com · SOA

2026-09-07 — Answer records observed

  • carfax.com · SOA
    expire=2592000; minimum=1800; mname=dns1.p07.nsone.net; refresh=10800; retry=3600; rname=hostmaster.nsone.net; serial=1653665910

carfax.com · TXT

2026-09-07 — Answer records observed

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "+1gYTj2ybp4ginYrkDrv8JI1bmiCFyUkfR6T2wKAhbJYTrADOAlUkC+cN8Cs5EaLvgvdrz2b5OHom7QTrCqk4A=="

  • Domain-control verification for Microsoft; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "MS=ms39282613"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "_umy37x07jsle67n2mm4y5ny6x6993lk"

  • Domain-control verification for Adobe IDP; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "adobe-idp-site-verification=8a1c40b589be62d6dd8e4ea207db8a0b63ff097c2addd1b2b8adc726506214d8"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "anthropic-domain-verification-rcz2fg=For92SmgeFZ0XvKlwwOCYtidg"

  • Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "atlassian-domain-verification=SYhO1JH2NzuVRk1D9y3vC2CoIZww7IOjZGw2UH4oxbcguZ0lP/OUFoGTeBSKHfF3"

  • Domain-control verification for Atlassian (Jira / Confluence); not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "atlassian-domain-verification=a6z15VTxtEFUry6WVe9zIrZYtI4cM54IAOqIyNUAgGyi2TAEpuJaPvhBH14xrIRB"

  • Domain-control verification for Atlassian Mail Sending; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "atlassian-sending-domain-verification=bb990bab-c513-40eb-b8bf-0b3905e567a7"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "docker-verification=9751618e-fa9c-4233-b089-7dc8458d6e4d"

  • Domain-control verification for DocuSign; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "docusign=4cc0b50b-e7fd-4cbc-9cf9-e77f3baa9bbe"

  • Domain-control verification for DocuSign; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "docusign=d0a7b43e-df13-4b90-b1ee-dbd8fb8e6ec6"

  • Domain-control verification for Meta (Facebook); not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "facebook-domain-verification=tzffe7rfkg6qd3nv09mz085o8sf30b"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=C0yWimJw3i37MDb16YH3ovBHLlWT1sYHGBpZ813OXGU"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=ElnDIk1K7wudCpLY74UVeIF_P_rpuYffEewgNQg5Vpw"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=IgHNI3QfU5g2FjemSmucwZEHUYUrSr4EEknFGTlSvQ8"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=NXUcSUT8rbkkfw3n_-8EnulgEcKb4GXsBJmS4EZgEgg"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=fhcRZ9QWfQPZyXv_PY1h0PpjtS_EMgJnx3ZoSJAuZD4"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=wYGren5BFyrMdmXY-ZwU-GP5qousDA7X1tZvyyif32w"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=xiDjdJ47YHOyZtMo4cPyUfEU0Cim33LmdNzlhVl2TMc"

  • Domain-control verification for Google; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "google-site-verification=xwQXBiDa_n-VxLNtXWjPjtErLwHVkUUMmuxRe1nCjWE"

  • Domain-control verification for HackerOne; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "h1-domain-verification=RcqX5VWiUETfb6trmCWQfCfahhHY9YUoETnajJCjKLnh6Gi3"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "infoblox-domain-mastery=fd63c8a7d25b000faacdc87043ccefe82c3ad3c1cd84845c95d4a5b620baf521fa"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "jamf-site-verification=t99kZMMyh-NHyu8IawByMw"

  • Domain-control verification for Miro; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "miro-verification=071e9ff0059a15166ef41912d2271e4eb835684e"

  • Domain-control verification for MongoDB Atlas; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "mongodb-site-verification=SHiuYspaJxhGuM3wYH1ECSQZCSJbjUWT"

  • Domain-control verification for MongoDB Atlas; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "mongodb-site-verification=pGWSBys4XwWG9OC3lPpbKCqWkfoGDYyd"

  • Domain-control verification for OneTrust; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "onetrust-domain-verification=4fe84ade0aa649449888ee7d3471328c"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "paloaltonetworks-site-verification=58f53ee61c0016e4f50c5fb603b53ec62d056b0d5a225f1c2a3f4278e70cd875"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "parsec-domain-verification=td_3BR28LnhFgRf60w92s3oztPIIqH"

  • Domain-control verification for Slack; not proof of active SaaS or mail use.

    Raw TXT valuecarfax.com · TXT
    "slack-domain-verification=U9KKuwJ4IKNtaan89p70NITffabWUCuiQwZnccgs"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "smartsheet-site-validation=-Xj_6Y3NA-r2hvMxKQvtQUL1tqSQvLAS"

  • SPF: authorized mail senders; not proof that mail was sent.

    Raw TXT valuecarfax.com · TXT
    "v=spf1 ip4:40.114.51.96 ip4:64.193.21.0/24 ip4:166.90.97.0/24 ip4:216.117.25.0/24 ip4:216.117.92.0/24 ip4:216.117.105.0/24 ip4:20.242.10.187/32 include:mktomail.com include:service-now.com include:_spf.salesforce.com include:spf.protection.outlook.com inc""lude:carfax.us include:5bd90f.workshop-spf.net -all"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "vertexinc-cloud-8015bff2-abb5-481d-a9a7-8ccb9d8dcc66"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "wiz-domain-verification=76627b2240349ea6078b158a119c2067b05f8a8bb48eba283a51c51246d50179"

  • Other TXT data; its purpose is not established by this measurement.

    Raw TXT valuecarfax.com · TXT
    "zscaler-verification-81298-10032026-6vki3d13pS"

www.carfax.com · A

2026-09-07 — Answer records observed

  • www.carfax.com · A
    216.117.25.115

Changes to carfax.com

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.

5DNS-dependent terms — nested dependencies are not checked; headroom is not confirmed
-allfail result for unmatched senders; recipient handling depends on its policy
308 Brecord length · mixed mechanisms

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.

MTA-STSNot measured in this dataset
TLS-RPTNot measured in this dataset
BIMINot measured in this dataset

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.

carfax-com.mail.protection.outlook.com

Partial observation: some addresses were not checked or the resolver could not determine their PTR records.

DNS attempt: 2026-09-08 09:49:49 UTC. 3 of 4 addresses queried; 3 definite address results in the saved observation.

Observed IPObserved PTR namesDNS observation
40.93.192.4mail-dm2pr04cu00404.inbound.protection.outlook.comPTR observed
52.101.41.198mail-byapr05cu00706.inbound.protection.outlook.comPTR observed
52.101.42.16mail-co1pr05cu00300.inbound.protection.outlook.comPTR observed
52.101.60.65—Not checked (query limit)

Observed PTR names are outside this domain. Name relationships are not a forward-confirmed reverse DNS test.

Where carfax.com stands

The same snapshot cut by zone, by list position and by how alive the published policies are.

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 4 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 carfax.com and does not prove that a particular message reaches the inbox or spam folder.

Frequently asked questions

What email provider does carfax.com use?

carfax.com uses Microsoft 365 for inbound mail (detected from its primary MX record) as of September 7, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

What ESP does carfax.com use?

carfax.com authorises Marketo (Adobe), Salesforce in its SPF record as of September 7, 2026.

Does carfax.com enforce DMARC?

Partially — carfax.com publishes p=quarantine (as of September 7, 2026).

Related domain statistics

Nearby domains in the Tranco ranking: razer.com · hotstar.com · tilda.ws · google.com.sa

Browse provider data · Compare historical periods · Run an inbox placement test

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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.