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 med-uni.wien

Valid
Issued by (CA)
Hellenic Academic and Research Institutions CA
Subject
meduniwien.ac.at
Valid from
Oct 29, 2026
Valid until
May 16, 2027 (195 days remaining)
Public key
RSA 4096-bit
Serial
0F3D4BE327D394284D8B1CEBEDB43368
SHA-256 fingerprint
2D:B6:98:BA:48:4C:B9:23:AD:28:3C:07:D3:EC:6D:77:D2:CB:BA:27:5A:28:DB:3D:6C:0C:F9:51:20:F8:30:EE
Chain
GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021
Subject Alternative Names (8)
med-uni.wien, medizinuni.wien, meduni.wien, meduniwien.ac.at, www.med-uni.wien, www.medizinuni.wien, www.meduni.wien, www.meduniwien.ac.at

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Oct 30, 2026.

Never get surprised by med-uni.wien's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch med-uni.wien continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.