SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
schul-frei.org
SSL/TLS Certificate
SSL/TLS Certificate for schul-frei.org
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- kalle.lol
- Valid from
- Aug 28, 2026
- Valid until
- Nov 26, 2026 (60 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053BBC9CCFE56542914FD0D36BDA91D59B31
- SHA-256 fingerprint
- B4:2B:01:16:C0:C1:30:D6:78:20:E0:2F:9E:BE:9C:F0:27:15:4D:4C:09:FC:37:32:B1:0A:76:67:24:3F:74:01
- Chain
- YR2 → 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 6, 2026.
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Uptime
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DNS changes
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TLS certificate
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