SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
s-k-klimatechnik.de
SSL/TLS Certificate
SSL/TLS Certificate for s-k-klimatechnik.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- s-k-klimatechnik.de
- Valid from
- Aug 30, 2026
- Valid until
- Mar 16, 2027 (150 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0674F4E96B0A309ED0C124084AC97B35
- SHA-256 fingerprint
- AE:7F:93:2A:17:56:AB:0C:78:6F:30:EE:E8:2E:40:EF:ED:40:E2:77:D2:0B:50:E2:38:44:E4:92:F6:54:6C:CC
- 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 s-k-klimatechnik.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch s-k-klimatechnik.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.