SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
calcofi.org
SSL/TLS Certificate
SSL/TLS Certificate for calcofi.org
Valid- Issued by (CA)
- Internet2
- Subject
- calcofiweb.ucsd.edu
- Valid from
- Mar 10, 2026
- Valid until
- Mar 10, 2027 (126 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 285A1A6C7C5573CC8DC5740094EBBD9F
- SHA-256 fingerprint
- 63:34:96:D3:9C:F7:F5:1D:77:64:32:90:DA:FB:36:89:35:3F:16:FC:5F:A3:AA:A3:C0:20:7C:72:42:6A:64:DF
- Chain
- InCommon RSA Server CA 2 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 9, 2026.
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Uptime
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DNS changes
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TLS certificate
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