SI CAPTCHA

Category - Widgets Wordpress Plugins

SI CAPTCHA Anti-Spam

Technology usage statistics

Websites using SI CAPTCHA 8,139 websites
Most popular in the country United States of America
Market position in Widgets #71
Market share in Widgets 0.20%

Technology adoption

Recent changes in SI CAPTCHA usage. (See SI CAPTCHA Usage Changes report)
Websites that added SI CAPTCHA +421
Websites that dropped SI CAPTCHA -177

Distribution by websites popularity

SI CAPTCHA detection in the top websites by popularity
Top 10k sites 3 websites
Top 100k sites 87 websites
Top 1m sites 834 websites

Websites utilizing SI CAPTCHA

Top websites that use SI CAPTCHA

Domain Country Rank Contacts
contentmarketinginstitute.com United States of America 1,382
www.worldsciencefestival.com United States of America 6,775
acqustic.com Germany 9,601
grosse-strangmann.com Germany 10,109
www.toxiclesbian.org Germany 10,440
nouveaux-parents.fr Switzerland 10,709
See full domain list

Market Share

SI CAPTCHA market share within the Widgets category

Geographical Distribution

Technology usage distribution by websites across the globe.






SI CAPTCHA often used together with


Category - CMS.
WordPress is used together with SI CAPTCHA on 10,178 domains. Total 2,589,744 domains found using WordPress
Category - Programming Languages.
PHP is used together with SI CAPTCHA on 8,932 domains. Total 3,965,788 domains found using PHP
Category - Databases.
MySQL is used together with SI CAPTCHA on 8,139 domains. Total 2,707,975 domains found using MySQL
Category - Document Encoding.
UTF-8 is used together with SI CAPTCHA on 8,135 domains. Total 8,702,930 domains found using UTF-8
Category - Wordpress Plugins.
Wordpress Plugins is used together with SI CAPTCHA on 8,111 domains. Total 1,773,954 domains found using Wordpress Plugins
Category - Document Standards.
JavaScript is used together with SI CAPTCHA on 8,106 domains. Total 6,622,159 domains found using JavaScript


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AddThis: Total 133,037 domains found using AddThis
AddThis for Wordpress: Total 29,395 domains found using AddThis for Wordpress
AddThisEvent: Total 231 domains found using AddThisEvent
AddToAny: Total 10,971 domains found using AddToAny