SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
k-data.org
SSL/TLS Certificate
SSL/TLS Certificate for k-data.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- k-data.org
- Valid from
- Sep 19, 2026
- Valid until
- Dec 18, 2026 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- 05A0C88D9928781B651248E600924B89BC5E
- SHA-256 fingerprint
- 4F:F3:57:51:FF:AB:42:57:65:82:0A:D1:3E:FA:CF:66:AB:05:5D:68:9B:88:9A:03:02:2D:CB:14:01:9D:4D:79
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 1, 2026.
Never get surprised by k-data.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch k-data.org 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.
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