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test1stcert.att.com

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

csv export pro
total records
212
active · on this page
12
expired · on this page
8
unique issuers · on this page
3
issuers on this pageDigiCert12Amazon7Hellenic Academic an…1
domainstatus
test1stcert.att.comcrt.sh
DigiCert
expires in 19d
test1stcert.att.comcrt.sh
DigiCert
expires in 17d
test1stcert.att.comcrt.sh
DigiCert
expires in 17d
test1stcert.att.comcrt.sh
DigiCert
expires in 17d
test1stcert.att.comcrt.sh
DigiCert
expires in 17d
test1stcert.att.comcrt.sh
DigiCert
expires in 16d
test1stcert.att.comcrt.sh
DigiCert
expires in 16d
test1stcert.att.comcrt.sh
DigiCert
expires in 14d
test1stcert.att.comcrt.sh
DigiCert
expires in 14d
test1stcert.att.comcrt.sh
DigiCert
expires in 14d
test1stcert.att.comcrt.sh
DigiCert
expires in 14d
test1stcert.att.comcrt.sh
DigiCert
expires in 14d
test1stcert.att.comcrt.sh
Amazon
expired 10mo ago
test1stcert.att.comcrt.sh
Amazon
expired 10mo ago
test1stcert.att.comcrt.sh
Amazon
expired 10mo ago
test1stcert.att.comcrt.sh
Amazon
expired 10mo ago
test1stcert.att.comcrt.sh
Amazon
expired 10mo ago
test1stcert.att.comcrt.sh
Amazon
expired 10mo ago
test1stcert.att.comcrt.sh
Amazon
expired 11mo ago
test1stcert.att.comcrt.sh
Hellenic Academic an…
expired 11mo ago
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar test1stcert.att.com | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar test1stcert.att.com | nuclei
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Related domains under .com

About certificate history for test1stcert.att.com

This page lists every X.509 (SSL/TLS) certificate ever issued for test1stcert.att.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 test1stcert.att.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).