Category - Web Server Extensions

OpenSSL is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols.

We have discovered 867,384 live websites that are using OpenSSL.

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Technology usage statistics

Websites using OpenSSL 867,384 websites
Most popular in the country United States of America
Market position in Web Server Extensions #1
Market share in Web Server Extensions 50.92%
Most popular version 1

Technology adoption

Recent changes in OpenSSL usage. (See OpenSSL Usage Changes report)
Websites that added OpenSSL +17,882
Websites that dropped OpenSSL -19,639
Websites that changed version of OpenSSL 1,700

Distribution by websites popularity

OpenSSL detection in the top websites by popularity
Top 10k sites 203 websites
Top 100k sites 1,700 websites
Top 1m sites 28,581 websites

Websites utilizing OpenSSL

Top websites that use OpenSSL

Domain Country Rank Contacts United States of America 163 United States of America 396 United States of America 516 United States of America 600 United States of America 600 United States of America 731
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Flat price per the report, subscription is not required.

Market Share

OpenSSL market share within the Web Server Extensions category

Geographical Distribution

Technology usage distribution by websites across the globe.


  • 0 (7 subversions, 56,834 domains)
  • 1 (5 subversions, 810,136 domains)
  • 3 (1 subversions, 21 domains)

Alternative Technologies

BytesLog: Total 822 domains found using BytesLog
mod_accel: Total 74 domains found using mod_accel
mod_apreq2: Total 4,929 domains found using mod_apreq2
mod_auth_kerb: Total 1,719 domains found using mod_auth_kerb
mod_auth_pam: Total 1,968 domains found using mod_auth_pam
mod_auth_passthrough: Total 4,928 domains found using mod_auth_passthrough
mod_auth_pgsql: Total 1,737 domains found using mod_auth_pgsql
mod_bwlimited: Total 127,471 domains found using mod_bwlimited
mod_chroot: Total 169 domains found using mod_chroot
mod_dav: Total 44,069 domains found using mod_dav