SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
katama.io
SSL/TLS Certificate
SSL/TLS Certificate for katama.io
Valid- Issued by (CA)
- Google Trust Services
- Subject
- katama.io
- Valid from
- Sep 14, 2026
- Valid until
- Dec 14, 2026 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- 52E3B935C1B5F3600EE283954B5ED2B8
- SHA-256 fingerprint
- FB:79:11:68:0B:17:43:6D:65:EF:5F:EA:F4:30:86:E7:47:D8:27:1D:37:1B:9F:A8:16:DC:35:1B:09:B1:F9:8C
- Chain
- WE1 → GTS Root R4
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 24, 2026.
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Uptime
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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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