SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for 30001.se
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- 30001.se
- Valid from
- Jul 9, 2026
- Valid until
- Oct 7, 2026 (58 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 058CF5835594EF0A5A49CA4396E5BB60F816
- SHA-256 fingerprint
- 3D:C6:5E:44:D4:F3:47:A1:0E:97:C8:A0:0F:F3:A7:B0:7C:BE:80:76:42:0C:20:9A:58:6E:C9:A7:1F:70:0F:AC
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
This certificate has been served since Jul 29, 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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