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 r-a.no
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- r-a.no
- Valid from
- Jun 12, 2026
- Valid until
- Sep 10, 2026 (39 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C94774BCEE2A1A196CB4564E1AD6EE9B55
- SHA-256 fingerprint
- 55:8E:E1:07:98:26:DC:41:5E:DC:6A:27:3E:1A:74:30:70:46:8E:47:5E:13:41:27:A6:9D:9A:7C:52:46:4E:C1
- 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 Jul 25, 2026.
Never get surprised by r-a.no's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch r-a.no continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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