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Breakdown

Technologies > SSL Certificate Authorities > Certum > Email Servers Segmentation

Distribution of email server providers among websites that use Certum

Detailed statistics in our extensive Certum market report.

Learn more

This diagram shows the percentages of websites using various email server providers among the sites that use Certum. See technologies overview for explanations on the methodologies used in the surveys.

How to read the diagram:
United Internet is used by 21.5% of all the websites that use Certum as SSL certificate authority.

United Internet
21.5%
Cyber_Folks Group
12.6%
NetArt Group
10.2%
W3Techs.com, 27 August 2025
Percentages of websites using various email server providers among the sites that use Certum

More detailed statistics

You can find usage and market share data for all 623 email server providers among Certum sites in our Certum market report and in our email server providers market report.

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Technology Brief
Certum
Category: SSL Certificate Authorities
Certum (formerly Unizeto) is a Polish SSL certificate authority owned by Asseco.
Website: certum.pl


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