SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kita-navigator.org
SSL/TLS Certificate
SSL/TLS Certificate for kita-navigator.org
Valid- Issued by (CA)
- Deutsche Telekom Security GmbH
- Subject
- *.kita-navigator.org
- Valid from
- Feb 17, 2026
- Valid until
- Feb 21, 2027 (188 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0E33D89ECE39ACC4F0EE16801E53F951
- SHA-256 fingerprint
- 31:52:EC:27:0A:82:3D:03:43:83:DE:06:79:8B:A8:03:D1:34:43:88:9E:BC:AB:A5:ED:0F:3A:D3:0A:4C:F1:01
- Chain
- Telekom Security ServerID OV Class 2 CA → T-TeleSec GlobalRoot Class 2
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 4, 2026.
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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.
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