SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
its-jakobs.de
SSL/TLS Certificate
SSL/TLS Certificate for its-jakobs.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- its-jakobs.de
- Valid from
- Sep 15, 2026
- Valid until
- Dec 14, 2026 (84 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0525D155F354115753F00D4FC5B8FBBD57E2
- SHA-256 fingerprint
- 57:DC:40:1C:DF:32:54:19:A1:EC:20:9F:4A:A8:C7:89:ED:F9:1D:5E:6F:B3:71:86:AE:FA:6D:68:12:1A:3A:7B
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
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DNS changes
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TLS certificate
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