SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
leraren-24.net
SSL/TLS Certificate
SSL/TLS Certificate for leraren-24.net
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- www.kn.nu
- Valid from
- Nov 5, 2026
- Valid until
- Feb 3, 2027 (85 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0623406551298E57BE068A9DF0F6752C495B
- SHA-256 fingerprint
- C4:87:7A:9B:E3:05:38:E5:F5:56:92:29:30:3C:94:58:4E:FD:73:20:B6:B7:A2:9A:1C:7D:D3:C5:03:3F:AE:6E
- 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 Sep 24, 2026.
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Uptime
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TLS certificate
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