SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
geldern-gesamtschule.com
SSL/TLS Certificate
SSL/TLS Certificate for geldern-gesamtschule.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- gesamtschule-geldern.de
- Valid from
- Aug 28, 2026
- Valid until
- Nov 26, 2026 (83 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0568D319777EB653E5FB69F3718A76A482EF
- SHA-256 fingerprint
- F2:34:06:2F:9F:38:2D:DB:EB:CF:0E:CB:C2:1B:AF:30:D5:0E:4A:B6:FF:3B:3A:31:55:F2:2C:11:86:77:CF:0F
- Chain
- YR1 → Root YR → 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 Aug 18, 2026.
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TLS certificate
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