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 union24.hu

Valid
Issued by (CA)
Microsec Ltd.
Subject
*.unionbiztosito.hu
Valid from
Nov 11, 2025
Valid until
Dec 12, 2026 (117 days remaining)
Public key
EC 256-bit
Serial
05D9E379CB7FFBF8C72BBE21B6B83F570D
SHA-256 fingerprint
68:3B:B1:BE:35:C9:F4:32:6D:AC:A2:6B:80:39:2F:2B:CF:A0:81:0C:3B:2A:5D:7F:6B:21:C4:12:FF:02:1B:C4
Chain
e-Szigno OV TLS CA 2023 → e-Szigno TLS Root CA 2023 → Microsec e-Szigno Root CA 2009
Subject Alternative Names (12)
*.union.hu, *.union24.hu, *.unionbiztosito.hu, teszt.egeszsegokosan.hu, teszt.portfoliomixer.hu, teszt.uniwebkalk.hu, union.hu, union24.hu, unionbiztosito.hu, www.egeszsegokosan.hu, www.portfoliomixer.hu, www.uniwebkalk.hu

Certificate Authority Authorization (CAA)

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

Never get surprised by union24.hu's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch union24.hu 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.