SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
feg-bielefeld.de
SSL/TLS Certificate
SSL/TLS Certificate for feg-bielefeld.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- feg-bielefeld.de
- Valid from
- Dec 7, 2025
- Valid until
- Dec 7, 2026 (127 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 36902E8CFF4721C7EFA0E8FF7FA5FC33
- SHA-256 fingerprint
- 57:6D:8B:78:99:DF:0D:27:64:4D:7E:A7:3E:79:A1:3D:16:01:32:D4:3F:DE:3C:81:EA:79:D0:E5:2C:5D:E6:61
- 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 feg-bielefeld.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch feg-bielefeld.de 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.