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 tekis.com

Valid
Issued by (CA)
Let's Encrypt
Subject
tekis.com
Valid from
Aug 21, 2026
Valid until
Nov 19, 2026 (45 days remaining)
Public key
EC 256-bit
Serial
0582E352E8AD10D2218D1206C9937662314D
SHA-256 fingerprint
7E:F9:A5:83:18:09:1D:8D:32:93:ED:2C:95:1B:EB:11:8C:80:ED:D1:D9:2B:3F:16:F7:53:5B:21:8A:43:2C:CD
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
tekis.com, www.tekis.com

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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