SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
alex-it.org
SSL/TLS Certificate
SSL/TLS Certificate for alex-it.org
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- alex-it.org
- Valid from
- Apr 18, 2025
- Valid until
- Jul 17, 2025 (expired 397 days ago)
- Public key
- RSA 2048-bit
- Serial
- 067C47611AC41951FF557572B4BC21146283
- SHA-256 fingerprint
- 5C:23:0F:7F:01:64:2C:79:63:39:5B:08:1C:0E:F4:6B:31:04:52:4B:13:0C:05:2F:E1:AA:F0:03:1F:36:9F:2A
- Chain
- R11 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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