SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
waldorfschule-krefeld.de
SSL/TLS Certificate
SSL/TLS Certificate for waldorfschule-krefeld.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- waldorfschule-krefeld.de
- Valid from
- Feb 7, 2026
- Valid until
- Feb 14, 2027 (197 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 92DD7A9EE17AFB976898EF745F4D3F99
- SHA-256 fingerprint
- 5C:C6:D4:BB:75:69:8E:DB:CB:C7:E9:D6:5E:AE:99:8F:61:87:2C:22:2C:34:69:A8:34:11:9E:F2:4D:D2:00:1F
- 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 waldorfschule-krefeld.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch waldorfschule-krefeld.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.