SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gs-classic.de
SSL/TLS Certificate
SSL/TLS Certificate for gs-classic.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.gs-classic.de
- Valid from
- Jan 1, 2026
- Valid until
- Jan 22, 2027 (142 days remaining)
- Public key
- RSA 2048-bit
- Serial
- EFD976ADB78B4401A74C5FA1EF446E56
- SHA-256 fingerprint
- 71:D1:B4:C6:04:66:D7:AC:3C:C4:78:3D:EB:A5:4C:93:49:7A:AD:CB:DC:96:9D:A4:D9:E3:18:B3:8D:B2:06:03
- 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.
This certificate has been served since Aug 18, 2026.
Never get surprised by gs-classic.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch gs-classic.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.