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 rexal.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- rexal.dk
- Valid from
- Jul 12, 2026
- Valid until
- Oct 10, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05D56A1CF1A23136CBA9ECD79B8F4BC5F1F9
- SHA-256 fingerprint
- E4:E8:51:35:F0:C8:AB:ED:9F:66:F0:53:02:DE:C0:B5:FB:3E:07:29:A1:DE:0B:EF:46:35:59:4D:6F:5A:62:4F
- 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 Aug 6, 2026.
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This is today's certificate. Turn on monitoring and we'll watch rexal.dk 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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