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 rk-as.no
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- rk-as.no
- Valid from
- Oct 10, 2026
- Valid until
- Jan 8, 2027 (79 days remaining)
- Public key
- EC 256-bit
- Serial
- 0639317B2CBDFD1C28DC4A388E99DB9BC397
- SHA-256 fingerprint
- DA:8A:B3:8F:1A:5D:25:0F:F3:78:22:1D:87:8D:3C:69:09:CD:6E:A3:FF:4B:03:23:97:B6:12:7B:AB:DA:39:AD
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 20, 2026.
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Uptime
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DNS changes
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TLS certificate
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