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 ki-ma.nl

Valid
Issued by (CA)
Let's Encrypt
Subject
www.ki-ma.nl
Valid from
Sep 14, 2026
Valid until
Dec 13, 2026 (55 days remaining)
Public key
RSA 4096-bit
Serial
0540C1C89FD69C42028EE73CFEDB876DF338
SHA-256 fingerprint
09:BF:4D:FC:81:EE:4C:51:F0:53:46:28:75:D2:39:3B:5D:29:09:A5:61:76:C3:BB:7E:90:15:5A:8D:40:9E:2B
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
ki-ma.nl, www.ki-ma.nl

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 17, 2026.

Never get surprised by ki-ma.nl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ki-ma.nl continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.