SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wurzelzweig.net
SSL/TLS Certificate
SSL/TLS Certificate for wurzelzweig.net
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- wurzelzweig.net
- Valid from
- Dec 9, 2022
- Valid until
- Mar 9, 2023 (expired 1320 days ago)
- Public key
- RSA 4096-bit
- Serial
- 0303380E94D490A2A299248620918AD9380A
- SHA-256 fingerprint
- 72:7A:E3:17:CB:7D:81:97:37:12:58:2E:B1:C6:20:E9:A6:4D:AA:2F:36:6A:C4:78:9C:AC:75:ED:4C:0B:3C:30
- Chain
- R3 → 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 16, 2026.
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Uptime
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DNS changes
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TLS certificate
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