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 colmic-fishing.nl

Self-signed
Issued by (CA)
www.bchzakelijk.eu
Subject
www.bchzakelijk.eu
Valid from
Mar 25, 2026
Valid until
Mar 25, 2027 (245 days remaining)
Public key
RSA 4096-bit
Serial
0365F45B431CC30355D22EA555337BECFC60336D
SHA-256 fingerprint
F9:44:4B:65:03:3C:5A:5F:DB:19:35:5F:AA:9B:CE:C6:C3:16:A3:EF:81:F4:CF:56:85:72:61:3F:CE:AA:E8:50
Chain
www.bchzakelijk.eu

Certificate Authority Authorization (CAA)

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

Never get surprised by colmic-fishing.nl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch colmic-fishing.nl 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.