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 not-funny.fun

Valid
Issued by (CA)
Let's Encrypt
Subject
not-funny.fun
Valid from
Sep 19, 2026
Valid until
Dec 18, 2026 (87 days remaining)
Public key
EC 256-bit
Serial
056BFCB23FA92DE02CEBFBF07F9E48452D0D
SHA-256 fingerprint
AB:5F:AC:EE:0B:B8:60:E5:07:A4:F5:41:02:66:07:00:27:36:20:97:D5:ED:B1:B5:D3:44:1A:53:E8:E5:1B:F3
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
not-funny.fun, www.not-funny.fun

Certificate Authority Authorization (CAA)

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

This certificate has been served since Sep 12, 2026.

Never get surprised by not-funny.fun's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch not-funny.fun 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.

Monitor this certificate free

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