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 fase2.dk
Self-signed- Issued by (CA)
- ispc2.dotserv.com
- Subject
- ispc2.dotserv.com
- Valid from
- Aug 7, 2026
- Valid until
- Aug 7, 2027 (363 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 09DAE2EE8CCA86923E1351C012F1856F6EFC3888
- SHA-256 fingerprint
- C3:16:A7:A4:5C:7B:60:DF:AD:05:44:6A:3D:39:C9:4D:57:17:D5:56:A2:82:28:AC:62:70:CA:38:EB:CE:3B:AC
- Chain
- ispc2.dotserv.com
Certificate Authority Authorization (CAA)
CAA restricts issuance to comodoca.com, letsencrypt.org; we couldn't map the serving CA (ispc2.dotserv.com) to one of these identifiers.
This certificate has been served since Jul 25, 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, 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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