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 acta-academy.nl

Self-signed
Issued by (CA)
web0167.zxcs.nl
Subject
web0167.zxcs.nl
Valid from
Feb 20, 2025
Valid until
Feb 20, 2026 (expired 155 days ago)
Public key
RSA 4096-bit
Serial
60B240B205ABA4FB09749B8780DEC430078DE839
SHA-256 fingerprint
EE:4A:5A:1B:37:13:71:F3:DA:1B:0A:76:63:D5:7B:CF:4B:85:43:F4:6F:A8:B5:52:F2:E8:74:ED:0F:4D:33:50
Chain
web0167.zxcs.nl

Certificate Authority Authorization (CAA)

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

Never get surprised by acta-academy.nl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch acta-academy.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.