Category - Web Servers

ESF is a proprietary web server software that Google uses for its web infrastructure

We have discovered 6,465 live website that are using ESF.

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Technology usage statistics

Websites using ESF 6,465 websites
Most popular in the country United States of America
Market position in Web Servers #21
Market share in Web Servers <0.1%

Technology adoption

Recent changes in ESF usage. (See ESF Usage Changes report)
Websites that added ESF +60
Websites that dropped ESF -13

Distribution by websites popularity

ESF detection in the top websites by popularity
Top 10k sites 100 websites
Top 100k sites 237 websites
Top 1m sites 610 websites

Websites utilizing ESF

Top websites that use ESF

Domain Country Rank Contacts United States of America 1 United States of America 4 United States of America 4 United States of America 12 United States of America 17 United States of America 18
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Market Share

ESF market share within the Web Servers category

Geographical Distribution

Technology usage distribution by websites across the globe.

Technology Information

ESF often used together with

Category - Certificate Authority.
Google Trust Services is used together with ESF on 6,400 domains. Total 152,291 domains found using Google Trust Services
Category - Document Encoding.
UTF-8 is used together with ESF on 6,101 domains. Total 8,085,874 domains found using UTF-8
Category - Mobile.
Viewport Meta is used together with ESF on 6,068 domains. Total 5,073,584 domains found using Viewport Meta
Category - Document Standards.
X-UA-Compatible is used together with ESF on 5,073 domains. Total 2,517,075 domains found using X-UA-Compatible
Category - Font Scripts.
Google Font API is used together with ESF on 4,992 domains. Total 2,476,518 domains found using Google Font API
Category - Document Standards.
JavaScript is used together with ESF on 4,864 domains. Total 6,112,271 domains found using JavaScript

Alternative Technologies

Allegro RomPager: Total 12 domains found using Allegro RomPager
Amazon EC2: Total 31,880 domains found using Amazon EC2
AOLserver: Total 74 domains found using AOLserver
Apache: Total 3,726,942 domains found using Apache
Apache Tomcat: Total 31,087 domains found using Apache Tomcat
ATS: Total 17,239 domains found using ATS
Apple Http Server: Total 132 domains found using Apple Http Server
BaseHTTP: Total 67 domains found using BaseHTTP
Boa: Total 34 domains found using Boa
bytex: Total 77 domains found using bytex