SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
swarthmorecollege.org
SSL/TLS Certificate
SSL/TLS Certificate for swarthmorecollege.org
Expired- Issued by (CA)
- Internet2
- Subject
- *.swarthmore.edu
- Valid from
- Feb 13, 2025
- Valid until
- Feb 13, 2026 (expired 204 days ago)
- Public key
- RSA 2048-bit
- Serial
- A3E1C5F302D9B83F90A275DE40ED6E15
- SHA-256 fingerprint
- 97:88:D7:33:34:51:A2:FE:9D:81:A8:56:47:15:6D:92:91:C2:50:F4:27:29:E5:09:CD:CD:21:96:8F:E3:76:EC
- 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.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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