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 optik-store.com

Valid
Issued by (CA)
Let's Encrypt
Subject
optik-store.com
Valid from
Aug 7, 2026
Valid until
Nov 5, 2026 (49 days remaining)
Public key
EC 256-bit
Serial
058DEFAC9DA8C325FE879178138E54AB88DC
SHA-256 fingerprint
A6:40:2B:16:8D:F9:E4:A4:F7:D4:FC:F4:E9:D4:49:AD:BA:09:FF:D4:FC:E9:8B:03:E4:9E:A6:A1:A1:16:3E:27
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
optik-store.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

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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