SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
risum-hansen.dk
SSL/TLS Certificate
SSL/TLS Certificate for risum-hansen.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- risum-hansen.dk
- Valid from
- Oct 29, 2026
- Valid until
- Jan 27, 2027 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 058963115145A15D1D51D74909E718F79319
- SHA-256 fingerprint
- E0:4C:E7:D8:01:68:A6:03:85:98:0A:40:DC:1A:E0:14:6D:B0:3B:73:7D:C5:E4:DA:DA:1E:B6:71:BB:6A:00:47
- 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 24, 2026.
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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, CNAME, TXT 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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