HTTPfy

Key-Systems GmbH certificates on popular websites

Key-Systems GmbH issued 3 of the 8,208 certificates we observed on popular sites in November 2026.

0.0%of observed certificates3 of 8,208
199 daysmedian validity period
0.0%expiring within 30 daysat scan time
100.0%validated for the host name

Validity period

Days between notBefore and notAfter of the leaf certificate.

up to 100 days 0.0%
101 to 200 days 100.0%
201 to 398 days 0.0%
over 398 days 0.0%

TLS versions negotiated

On sites using Key-Systems GmbH (accent) and all sites (grey).

TLSv1.3 100.0%
all sites 84.9%

About Key-Systems GmbH

Issuer organisation names seen in these certificates: Key-Systems GmbH (3).

0.0% of the domains using Key-Systems GmbH publish a CAA record (all sites: 20.7%). A CAA record names the CAs allowed to issue for the domain; any other CA must refuse.

Popular sites with a Key-Systems GmbH certificate

emag.rotilda.wsportfolio.hu

Check one yourself:

Check SSL certificateLook up CAA recordsHTTP headers

Source: our own scan of November 2026 (2026-11-11), 9,971 of the top 10,000 domains of the Tranco list Y895G that answered in DNS. Method and data.