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 mdh-ag.ch

Hostname mismatch
Issued by (CA)
DigiCert Inc
Subject
www.mdh-ag.de
Valid from
Jul 24, 2026
Valid until
Feb 7, 2027 (185 days remaining)
Public key
RSA 4096-bit
Serial
0D566DF3CB0A99FD17C2878BCF31A24F
SHA-256 fingerprint
64:E4:C5:D8:99:71:A2:B7:DC:61:C8:3A:02:49:08:46:75:A6:0E:0B:09:89:56:7E:94:AB:45:31:C0:6D:12:49
Chain
GeoTrust TLS RSA CA G1 → DigiCert Global Root G2
Subject Alternative Names (4)
api.mdh-ag.de, mdh-ag.de, portal.mdh-ag.de, www.mdh-ag.de

Certificate Authority Authorization (CAA)

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

Never get surprised by mdh-ag.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch mdh-ag.ch 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.