SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fsu-skak.dk
SSL/TLS Certificate
SSL/TLS Certificate for fsu-skak.dk
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- fsu-skak.dk
- Valid from
- Jul 19, 2026
- Valid until
- Feb 2, 2027 (171 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 067720A39A045A248FFC3CEF7E05621F
- SHA-256 fingerprint
- 10:B9:F3:8A:9F:C7:FC:E4:36:9B:C4:98:C4:30:A5:4D:42:BD:89:28:CF:67:45:6C:A5:B0:7D:64:C5:02:50:3E
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by fsu-skak.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch fsu-skak.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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