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claude.ai

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

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Filters
20 on page · 66 matched
total records
66
active · on this page
6
expired · on this page
14
unique issuers · on this page
9
issuers on this pageGoogle Trust6GoDaddy3DigiCert2Unknown Issuer2Amazon2Entrust2Let's Encrypt1Microsoft1
domainissuervalidstatus
www.claude.aicrt.sh
GoDaddy
GoDaddyNov 30, 2024→Feb 28, 2025expired 1y ago
preview.claude.aicrt.sh
DigiCert
DigiCertNov 26, 2024→Feb 24, 2025expired 1y ago
claude.aicrt.sh
Google Trust
Google TrustOct 23, 2024→Jan 21, 2025expired 1y ago
*.claude.aicrt.sh
Google Trust
Google TrustOct 23, 2024→Jan 21, 2025expired 1y ago
claude.aicrt.sh
Unknown Issuer
Unknown IssuerOct 23, 2024→Jan 21, 2025expired 1y ago
*.claude.aicrt.sh
Unknown Issuer
Unknown IssuerOct 23, 2024→Jan 21, 2025expired 1y ago
api.claude.aicrt.sh
Google Trust
Google TrustMar 22, 2024→Mar 22, 2025expired 1y ago
*.api.claude.aicrt.sh
Google Trust
Google TrustMar 22, 2024→Mar 22, 2025expired 1y ago
api.claude.aicrt.sh
GoDaddy
GoDaddyMar 22, 2024→Mar 22, 2025expired 1y ago
*.api.claude.aicrt.sh
GoDaddy
GoDaddyMar 22, 2024→Mar 22, 2025expired 1y ago
a-cdn.claude.aicrt.sh
Amazon
AmazonAug 12, 2025→Sep 10, 2026expires in 4mo
staging.claude.aicrt.sh
Google Trust
Google TrustJul 8, 2023→Oct 7, 2023expired 2y ago
claude.aicrt.sh
Let's Encrypt
Let's EncryptApr 29, 2024→Jul 28, 2024expired 1y ago
*.livepreview.claude.aicrt.sh
Google Trust
Google TrustApr 16, 2026→Jul 15, 2026expires in 2mo
a-cdn.claude.aicrt.sh
Microsoft
MicrosoftMar 23, 2026→Oct 6, 2026expires in 5mo
a-cdn.claude.aicrt.sh
Amazon
AmazonAug 12, 2025→Sep 10, 2026expires in 4mo
staging.claude.aicrt.sh
DigiCert
DigiCertJul 24, 2025→Oct 22, 2025expired 6mo ago
*.claude.aicrt.sh
Unizeto Technologies…
Unizeto Technologies…Jun 25, 2025→Sep 23, 2025expired 7mo ago
preview.claude.aicrt.sh
Entrust
EntrustApr 1, 2026→Jun 30, 2026expires in 1mo
pivot.claude.aicrt.sh
Entrust
EntrustMar 27, 2026→Jun 25, 2026expires in 1mo
showing 41–60 · 3/4
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Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar claude.ai | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar claude.ai | nuclei
Free tier: 100 searches/day · Pro $29/mo for 10,000/day

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About certificate history for claude.ai

This page lists every X.509 (SSL/TLS) certificate ever issued for claude.ai 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 claude.ai for newly-issued certificates in real-time (useful for detecting unauthorized issuance, phishing variants, or shadow IT) add it to your watchlist (Pro plan).