SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
f-o-d-c.net
SSL/TLS Certificate
SSL/TLS Certificate for f-o-d-c.net
Self-signed- Issued by (CA)
- SomeOrganization
- Subject
- localhost.localdomain
- Valid from
- Jan 19, 2016
- Valid until
- Jan 18, 2017 (expired 3526 days ago)
- Public key
- RSA 2048-bit
- Serial
- 6286
- SHA-256 fingerprint
- 3B:6F:E6:46:D5:BF:B9:44:6E:3F:21:7E:A1:4A:95:1C:57:5D:7D:27:64:14:2D:58:EC:7B:2B:B2:23:BC:D6:4B
- Chain
- —
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 26, 2026.
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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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