SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
stf-24.de
SSL/TLS Certificate
SSL/TLS Certificate for stf-24.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.stf-24.de
- Valid from
- Jul 24, 2026
- Valid until
- Feb 3, 2027 (121 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5FD35D793A229139C9EA774B782DC8A7
- SHA-256 fingerprint
- D9:C8:E8:8E:64:F3:26:55:CF:82:1B:15:E2:23:05:8B:E8:38:D2:44:A2:49:0F:47:20:38:2B:7E:D4:F3:B2:70
- 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 stf-24.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch stf-24.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.