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 ok-go.de
Untrusted chain- Issued by (CA)
- Let's Encrypt
- Subject
- ok-go.de
- Valid from
- Aug 31, 2026
- Valid until
- Nov 29, 2026 (46 days remaining)
- Public key
- EC 256-bit
- Serial
- 06F4A38452DD06993130638A189E12A4D97E
- SHA-256 fingerprint
- 62:34:80:0A:9D:7C:C7:99:38:81:7C:2D:BD:B4:4B:1C:6C:41:DB:49:F5:8E:27:0A:16:49:D4:38:4D:34:DB:15
- Chain
- YE1
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 Oct 5, 2026.
Never get surprised by ok-go.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ok-go.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.