SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
big12-fans.com
SSL/TLS Certificate
SSL/TLS Certificate for big12-fans.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- big12-fans.com
- Valid from
- Jun 10, 2026
- Valid until
- Sep 8, 2026 (39 days remaining)
- Public key
- EC 256-bit
- Serial
- 0BCD4914E76BACEE0E92A50F003C2433
- SHA-256 fingerprint
- DE:30:D0:E3:CA:2A:26:6D:A9:46:B6:02:9B:E2:AA:9D:CD:6F:BF:D2:C6:A8:EC:98:A8:DB:13:20:B3:DC:2E:7A
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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