SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fc-koenigsfeld.de
SSL/TLS Certificate
SSL/TLS Certificate for fc-koenigsfeld.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.fc-koenigsfeld.de
- Valid from
- Jan 18, 2026
- Valid until
- Sep 29, 2026 (39 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 52576357AB83C9B69588CDBE5CA2801A
- SHA-256 fingerprint
- 39:F8:70:01:C3:F7:85:ED:EC:A8:97:B9:09:FA:74:9B:6C:A2:8E:78:8C:98:A0:8E:C9:D2:75:73:2A:87:A5:63
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
The serving CA (Sectigo Limited) is authorized by this domain's CAA records (sectigo.com).
Never get surprised by fc-koenigsfeld.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch fc-koenigsfeld.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.