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opensea.io

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

csv export pro
Filters
20 on page · 141 matched
total records
141
active · on this page
4
expired · on this page
16
unique issuers · on this page
8
issuers on this pageGoogle Trust4GoDaddy4DigiCert3Microsoft3Let's Encrypt2Unknown Issuer2Entrust1Unizeto Technologies…1
domainissuervalidstatus
*.opensea.iocrt.sh
Let's Encrypt
Let's EncryptJan 14, 2024→Jan 13, 2025expired 1y ago
opensea.iocrt.sh
DigiCert
DigiCertJan 13, 2024→Jan 12, 2025expired 1y ago
*.opensea.iocrt.sh
DigiCert
DigiCertJan 13, 2024→Jan 12, 2025expired 1y ago
learn.opensea.iocrt.sh
Google Trust
Google TrustNov 20, 2025→Feb 18, 2026expired 2mo ago
blog-v3.opensea.iocrt.sh
Google Trust
Google TrustJan 28, 2026→Apr 28, 2026expired 8d ago
*.pro.opensea.iocrt.sh
Microsoft
MicrosoftApr 5, 2023→Jul 4, 2023expired 2y ago
*.pro.opensea.iocrt.sh
Microsoft
MicrosoftApr 5, 2023→Jul 4, 2023expired 2y ago
pro.opensea.iocrt.sh
Microsoft
MicrosoftApr 4, 2023→Jul 3, 2023expired 2y ago
blog-v2.opensea.iocrt.sh
Unknown Issuer
Unknown IssuerNov 18, 2022→Feb 16, 2023expired 3y ago
cryptosaga.opensea.iocrt.sh
Unknown Issuer
Unknown IssuerFeb 20, 2022→Feb 20, 2023expired 3y ago
mcp-beta.opensea.iocrt.sh
Google Trust
Google TrustApr 6, 2026→Jul 5, 2026expires in 1mo
opensea.iocrt.sh
GoDaddy
GoDaddyAug 13, 2025→Nov 11, 2025expired 5mo ago
dev-storage.opensea.iocrt.sh
Entrust
EntrustAug 3, 2025→Nov 1, 2025expired 6mo ago
*.opensea.iocrt.sh
DigiCert
DigiCertJul 20, 2025→Oct 18, 2025expired 6mo ago
*.pro.opensea.iocrt.sh
Unizeto Technologies…
Unizeto Technologies…Jul 9, 2025→Oct 7, 2025expired 7mo ago
privy.wallets.opensea.iocrt.sh
GoDaddy
GoDaddyJun 19, 2025→Sep 17, 2025expired 7mo ago
community-standards.opensea.iocrt.sh
GoDaddy
GoDaddyMar 28, 2026→Jun 26, 2026expires in 1mo
partners.opensea.iocrt.sh
GoDaddy
GoDaddyMar 28, 2026→Jun 26, 2026expires in 1mo
docs.opensea.iocrt.sh
Let's Encrypt
Let's EncryptMar 20, 2026→Jun 18, 2026expires in 1mo
docs.opensea.iocrt.sh
Google Trust
Google TrustJan 20, 2026→Apr 20, 2026expired 16d ago
showing 101–120 · 6/8
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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
Free tier: 100 searches/day · Pro $29/mo for 10,000/day

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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).