SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
schism.wiki
SSL/TLS Certificate
SSL/TLS Certificate for schism.wiki
Hostname mismatch- Issued by (CA)
- Internet2
- Subject
- *.vims.edu
- Valid from
- Feb 24, 2026
- Valid until
- Feb 24, 2027 (217 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 1AE9110B128C700CABF63C6DF06017F6
- SHA-256 fingerprint
- DF:A7:22:91:2B:46:58:87:93:FD:F4:46:F5:C4:E4:D6:D5:8A:F8:31:CB:A4:44:43:AB:F9:6A:9F:42:7F:61:A2
- 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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