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 dsi.kz
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- dsi.kz
- Valid from
- Oct 9, 2025
- Valid until
- Jan 7, 2026 (expired 208 days ago)
- Public key
- RSA 2048-bit
- Serial
- 064345DB88B3320107FD9161E1D9B365C6A0
- SHA-256 fingerprint
- 2E:02:45:AC:02:DF:92:3A:E3:A9:DC:D5:1E:6A:04:78:91:29:67:48:55:70:A5:0C:97:EB:F6:BC:1A:E9:2D:08
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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