SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
b-fair.org
SSL/TLS Certificate
SSL/TLS Certificate for b-fair.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- b-fair.org
- Valid from
- Jul 10, 2026
- Valid until
- Oct 8, 2026 (23 days remaining)
- Public key
- EC 256-bit
- Serial
- 056329E99001C81E09531744459B638BBEB4
- SHA-256 fingerprint
- A0:91:19:E3:F8:79:D8:7D:5E:CE:75:5A:60:BF:DE:5E:08:85:4F:6B:FF:00:23:76:5E:8E:CC:02:20:49:4F:C7
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
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 Sep 6, 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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