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mailgun.com

Every SSL/TLS certificate ever issued for this name, indexed from public CT logs.

csv export pro
total records
62
active · on this page
0
expired · on this page
20
unique issuers · on this page
5
issuers on this pageGoogle Trust8Amazon4Microsoft3Let's Encrypt3Cloudflare2
domainstatus
mailgun.comcrt.sh
Amazon
expired 11mo ago
*.mailgun.comcrt.sh
Amazon
expired 11mo ago
eu.mailgun.comcrt.sh
Amazon
expired 10mo ago
*.eu.mailgun.comcrt.sh
Amazon
expired 10mo ago
try.mailgun.comcrt.sh
Microsoft
expired 10mo ago
try.mailgun.comcrt.sh
Let's Encrypt
expired 10mo ago
hello.learn.mailgun.comcrt.sh
Google Trust
expired 10mo ago
feedback.mailgun.comcrt.sh
Microsoft
expired 10mo ago
help.mailgun.comcrt.sh
Google Trust
expired 11mo ago
status.mailgun.comcrt.sh
Let's Encrypt
expired 11mo ago
email.e.learn.mailgun.comcrt.sh
Google Trust
expired 11mo ago
email.e.learn.mailgun.comcrt.sh
Google Trust
expired 11mo ago
documentation.mailgun.comcrt.sh
Let's Encrypt
expired 11mo ago
email.mailgun.comcrt.sh
Google Trust
expired 11mo ago
try.mailgun.comcrt.sh
Microsoft
expired 1y ago
try.mailgun.comcrt.sh
Google Trust
expired 1y ago
try.mailgun.comcrt.sh
Google Trust
expired 1y ago
hello.learn.mailgun.comcrt.sh
Google Trust
expired 1y ago
learning.mailgun.comcrt.sh
Cloudflare
expired 1y ago
learning.mailgun.comcrt.sh
Cloudflare
expired 1y ago
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar mailgun.com | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar mailgun.com | nuclei
Free tier: 100 searches/day · Pro $29/mo for 10,000/day

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About certificate history for mailgun.com

This page lists every X.509 (SSL/TLS) certificate ever issued for mailgun.com and its subdomains, as recorded in public Certificate Transparency (CT) logs. CT logs are an immutable, append-only record of every certificate issued by participating Certificate Authorities (CAs), as required by the major browsers since 2018.

Subdomain enumeration via CT logs is one of the highest-signal techniques in reconnaissance — every time a TLS certificate is issued, all Subject Alternative Names (SANs) on that certificate become public. Internal and forgotten subdomains regularly show up here days after they're set up.

To monitor mailgun.com for newly-issued certificates in real-time (useful for detecting unauthorized issuance, phishing variants, or shadow IT) add it to your watchlist (Pro plan).