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opensea.io

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

csv export pro
total records
104
active · on this page
0
expired · on this page
20
unique issuers · on this page
3
issuers on this pageLet's Encrypt10Google Trust5Microsoft5
domainstatus
docs.opensea.iocrt.sh
Google Trust
expired 10mo ago
docs.opensea.iocrt.sh
Google Trust
expired 10mo ago
docs.opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
opensea.iocrt.sh
Google Trust
expired 10mo ago
*.opensea.iocrt.sh
Google Trust
expired 10mo ago
*.testnets.opensea.iocrt.sh
Google Trust
expired 10mo ago
opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
*.opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
*.testnets.opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
*.opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
*.testnets.opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
*.pro.opensea.iocrt.sh
Microsoft
expired 10mo ago
*.pro.opensea.iocrt.sh
Let's Encrypt
expired 10mo ago
opensea.iocrt.sh
Microsoft
expired 11mo ago
*.opensea.iocrt.sh
Microsoft
expired 11mo ago
support.opensea.iocrt.sh
Let's Encrypt
expired 11mo ago
support.opensea.iocrt.sh
Microsoft
expired 11mo ago
privy.wallets.opensea.iocrt.sh
Let's Encrypt
expired 11mo ago
privy.wallets.opensea.iocrt.sh
Microsoft
expired 11mo ago
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar opensea.io | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar opensea.io | nuclei
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About certificate history for opensea.io

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