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 fs-da.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.fs-da.de
- Valid from
- Feb 22, 2026
- Valid until
- Mar 8, 2027 (227 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 765B8B8DB1389D348D2A43A24E3E46FC
- SHA-256 fingerprint
- F4:3B:AB:F1:C1:59:96:A6:11:10:94:45:73:60:26:70:20:EC:33:75:39:2D:28:35:05:84:9F:34:2F:70:FB:86
- 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 fs-da.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch fs-da.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.
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