SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ucu-unn.org.uk
SSL/TLS Certificate
SSL/TLS Certificate for ucu-unn.org.uk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ucu-unn.org.uk
- Valid from
- Jul 1, 2026
- Valid until
- Sep 29, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A74FFB7CCB351A196CEC549F4EDD3A0D07
- SHA-256 fingerprint
- E6:23:9A:5B:3C:98:95:73:25:8C:99:9B:C9:CB:17:68:63:41:5D:57:D9:4B:C7:FE:6C:64:72:80:1B:D5:7A:04
- 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
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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