SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bgs.schule
SSL/TLS Certificate
SSL/TLS Certificate for bgs.schule
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- bgs.schule
- Valid from
- Aug 25, 2026
- Valid until
- Nov 23, 2026 (55 days remaining)
- Public key
- EC 256-bit
- Serial
- 06FB5C38A363A1BB7A6A01B68F45709D73AA
- SHA-256 fingerprint
- 20:0C:1C:8C:30:10:A6:2D:AD:8D:BC:A5:17:41:68:2F:9A:33:8D:7F:13:B5:A7:0D:01:60:1F:F1:1A:84:6F:65
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
This certificate has been served since Sep 27, 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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