SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ulfborg-vemb.dk
SSL/TLS Certificate
SSL/TLS Certificate for ulfborg-vemb.dk
Hostname mismatch- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.holstebro.dk
- Valid from
- Jun 25, 2026
- Valid until
- Jan 10, 2027 (91 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 012C61CFBCB3B8C9B0B409E1941B06CF
- SHA-256 fingerprint
- F5:1C:5C:5F:DF:59:6F:91:BB:E3:90:E1:E3:42:E8:5A:3F:6C:55:41:C2:C9:03:23:D8:5D:1B:72:8A:FA:9E:65
- Chain
- GlobalSign Atlas R3 AlphaSSL CA 2026 Q2 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ulfborg-vemb.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ulfborg-vemb.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.