Reply.io — market share 2026

esp

According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Reply.io is the email service provider (ESP) for 94 domains — 0.02% of 617,702 SPF-publishing domains. Its strongest TLD is .com (79.8% of its domains). Detection: include: mechanisms in the SPF record.

94domains

0.02%of SPF-publishing domains

11distinct TLDs

2026-07-13snapshot (updated daily)

Commonly used together with Reply.io

What else the same 94 domains use — cross-tabulated from the same daily snapshot (2026-07-13).

Type	Service	Domains	Share of Reply.io users
Mailbox	Google Workspace	80	85.1%
Mailbox	Microsoft 365	5	5.3%
Mailbox	Mimecast	3	3.2%
Mailbox	Zoho Mail (EU)	1	1.1%
Mailbox	OVH Mail	1	1.1%
Mailbox	Trend Micro	1	1.1%
ESP	HubSpot	32	34.0%
ESP	Mailchimp	19	20.2%
ESP	Zendesk	19	20.2%
ESP	Amazon SES	18	19.1%

TLD distribution (top 11 of 11)

com — 75 (79.8%)

co — 7 (7.4%)

io — 3 (3.2%)

net — 2 (2.1%)

ua — 1 (1.1%)

group — 1 (1.1%)

tech — 1 (1.1%)

cc — 1 (1.1%)

org — 1 (1.1%)

build — 1 (1.1%)

eu — 1 (1.1%)

Frequently asked questions

How many domains use Reply.io?

94 domains in the Tranco top-1M use Reply.io as their email service provider (ESP) as of July 13, 2026, according to Live Direct Marketing's daily DNS scan.

What is Reply.io's market share?

Reply.io holds 0.02% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-13). The number is recomputed every day.

What are the biggest alternatives to Reply.io?

The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-07-13).

Largest email service provider (ESP)s in this category

Amazon SES (6.21%) · SendGrid (Twilio) (4.76%) · Mailgun (4.11%) · Zendesk (3.86%) · Mailchimp (3.69%) · Mandrill (3.36%) · HubSpot (3.18%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.80%)

ESP / mailing services portfolio → · Full daily report →

Sending through Reply.io? Check whether your messages actually reach the inbox at Gmail, Outlook, Yandex and Mail.ru — free inbox placement test.

Test your deliverability →

Domain sample (top 94 by Tranco rank)

clinch.cochatra.iosoax.cominfluencermarketinghub.comjunglescout.comferoot.comthemoneytizer.comflocksafety.comcloudcraft.cothegadgetflow.comwelcomesoftware.comflockler.comkeywee.coglofox.comedapp.comjoinposter.comecologi.comgetmysa.comeleyo.comtveyes.comaltexsoft.comanyword.comechelonfit.comshipup.coludus.comgovtribe.comprocessout.comrevieve.comeverfit.iorupahealth.commagecloud.netteambuildr.comapolitical.cotelemetrytv.comquandl.comhuntr.corichads.comgoodfinancialcents.commoki.comchatchamp.comnowsta.compromorepublic.comtsico.combabysparks.comgowento.comhatsize.comiglobalstores.comcribflyer.combeyonk.comcircuitree.commastersindia.colabelradar.comlinqia.comstorii.comaltinity.comblynk.ccgetrocketbook.comiwaspoisoned.comdroppe.comchatra.comswag.comwithconfetti.comvirtualtraining.eulegaleriste.comeastwoodguitars.comclientbook.comscinote.netmyobligo.comnetpeak.groupgpsinsight.iostqry.comjoin.buildmidcurrent.combostonchefs.complink.techxakiatech.comunicorn-nest.cominnovetpet.comjooble.cominsuretechconnect.comquable.comdiamondsis.comcorrelation-one.comfoundershield.comdesignbro.comresonaterecordings.comipification.comevalato.comgigwalk.comaimprosoft.compropertysimple.comstoriicare.comweb-promo.uawylandfoundation.org

Showing 94 of 94 domains.