SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
chr-walter.de
SSL/TLS Certificate
SSL/TLS Certificate for chr-walter.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.chr-walter.de
- Valid from
- Aug 14, 2026
- Valid until
- Feb 28, 2027 (120 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 282C9C92C8679546A8AD5A36462B7BF5
- SHA-256 fingerprint
- C1:68:BC:8F:64:FD:05:14:D5:F5:88:81:A2:64:F0:80:40:2C:8E:A3:73:A3:D3:04:54:56:C2:F0:57:7E:75:1F
- 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 chr-walter.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch chr-walter.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, CNAME, TXT 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.