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 hsb.at

Self-signed
Issued by (CA)
pl036.a1webhosting.at
Subject
pl036.a1webhosting.at
Valid from
Jul 29, 2024
Valid until
Jul 29, 2025 (expired 370 days ago)
Public key
RSA 4096-bit
Serial
2B8BEBDD14DD80C1B1BC2D58E3143531C63D27C9
SHA-256 fingerprint
E1:5C:48:9D:21:45:73:EC:EC:DA:E3:D0:28:14:F0:71:BB:7E:85:63:A7:22:F8:1F:73:AA:85:65:D9:7A:74:C4
Chain
pl036.a1webhosting.at

Certificate Authority Authorization (CAA)

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

Never get surprised by hsb.at's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch hsb.at 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.