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 c-map.dk
Self-signed- Issued by (CA)
- *.c-map.dk
- Subject
- *.c-map.dk
- Valid from
- Apr 22, 2026
- Valid until
- Apr 21, 2031 (1649 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C6D5206D2054BEFB9D7EC0C04A4C1240DBD060
- SHA-256 fingerprint
- A8:E7:35:D8:4F:96:5C:C1:8C:F0:C9:A5:32:BA:97:33:CD:7A:4C:EA:91:E5:BB:50:C6:B2:2B:36:00:B9:9C:7F
- Chain
- *.c-map.dk
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 Oct 8, 2026.
Never get surprised by c-map.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch c-map.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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