SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
luke-johnson.net
SSL/TLS Certificate
SSL/TLS Certificate for luke-johnson.net
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- chnetwork.net
- Valid from
- May 16, 2026
- Valid until
- Aug 14, 2026 (16 days remaining)
- Public key
- EC 256-bit
- Serial
- 06FE85005B3C1DD8B638FD64A472C71C7A98
- SHA-256 fingerprint
- BE:06:D3:25:07:99:13:86:D9:91:47:F5:73:65:76:A7:0E:52:AC:BF:E6:57:52:1C:99:CD:AA:93:A3:3D:B0:CA
- Chain
- E8 → 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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