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 as-as.no
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- as-as.no
- Valid from
- Jul 31, 2026
- Valid until
- Oct 29, 2026 (33 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 058A5B31CF3AC48002A5D4BACACEBF97EFE4
- SHA-256 fingerprint
- 19:02:FC:D4:E2:CF:4C:D0:E0:FE:34:39:61:1A:75:9D:2F:E4:33:4E:C0:57:89:76:31:58:5D:FE:60:75:62:B7
- 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 Sep 20, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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