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 f-kenso.com

Valid
Issued by (CA)
Let's Encrypt
Subject
f-kenso.com
Valid from
Jul 29, 2026
Valid until
Oct 27, 2026 (33 days remaining)
Public key
EC 256-bit
Serial
05F6BA96210C8543F6ECBBE615D473E42996
SHA-256 fingerprint
E8:A7:79:51:2B:8E:FA:3E:9C:E5:5F:0E:55:6C:64:7B:BC:F0:6D:AE:E3:C8:69:A9:A1:83:C9:F3:EF:62:1F:34
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
f-kenso.com, www.f-kenso.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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This is today's certificate. Turn on monitoring and we'll watch f-kenso.com 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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