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Programming languages used in most popular websites*
Websites Popularity

(unique visitors per month)[1]

Front-end

(Client-side)

Back-end

(Server-side)

Database Notes
Google.com[2] 1,600,000,000 JavaScript C, C++, Go,[3] Java, Python BigTable,[4] MariaDB[5] The most used search engine in the world
Facebook.com 1,100,000,000 JavaScript Hack, PHP (HHVM), Python, C++, Java, Erlang, D,[6] Xhp,[7] Haskell[8] MariaDB, MySQL,[9] HBase Cassandra[10] The most visited social networking site
YouTube.com 1,100,000,000 JavaScript C, C++, Python, Java,[11] Go[12] Vitess, BigTable, MariaDB[5][13] The most visited video sharing site
Yahoo 750,000,000 JavaScript PHP MySQL, PostgreSQL[14] Yahoo is presently[when?] transitioning to Node.js[15]
Amazon.com 500,000,000 JavaScript Java, C++, Perl[16] Oracle Database[17] Popular internet shopping site
Wikipedia.org 475,000,000 JavaScript PHP, Hack MySQL[citation needed], MariaDB[18] MediaWiki” is programmed in PHP, runs on HHVM; free online encyclopedia
Twitter.com 290,000,000 JavaScript C++, Java, Scala, Ruby[19] MySQL[20] 140 characters social network
Bing 285,000,000 JavaScript ASP.NET Microsoft SQL Server
eBay.com 285,000,000 JavaScript Java,[21] JavaScript,[22] Scala[23] Oracle Database Online auction house
MSN.com 280,000,000 JavaScript ASP.NET Microsoft SQL Server An email client, for simple use. Mostly known as “messenger”.
Microsoft 270,000,000 JavaScript ASP.NET Microsoft SQL Server Software company
Linkedin.com 260,000,000 JavaScript Java, JavaScript,[24] Scala Voldemort[25] World’s largest professional network
Pinterest 250,000,000 JavaScript Django (a Python framework),[26] Erlang MySQL, Redis [27]
WordPress.com 240,000,000 JavaScript PHP, JavaScript [28] (Node.js) MariaDB, MySQL
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