Programming languages used in most popular websites


The most popular websites have in common that they are dynamic websites. Their development typically involves server-side coding, client-side coding and database technology. The programming languages applied to deliver similar dynamic web content however vary vastly between sites.
WebsitesPopularity
Front-end
Back-end
DatabaseNotes
Google1,600,000,000JavaScript, TypeScriptC, C++, Go, Java, PythonBigtable, MariaDBThe most used search engine in the world
Facebook1,100,000,000JavaScript, FlowHack, PHP, Python, C++, Java, Erlang, D, XHP, HaskellMariaDB, MySQL, HBase, CassandraThe most visited social networking site
YouTube1,100,000,000JavaScriptC, C++, Python, Java, GoVitess, BigTable, MariaDBThe most visited video sharing site
Yahoo750,000,000JavaScriptPHPPostgreSQL, HBase, Cassandra, MongoDB,
Amazon500,000,000JavaScriptJava, C++, PerlPostgreSQL, RDS, RDS AuroraPopular Internet shopping site
Wikipedia475,000,000JavaScriptPHPMariaDB"MediaWiki" is programmed in PHP; free online encyclopedia
Twitter290,000,000JavaScriptC++, Java, Scala, RubyMySQLPopular social network.
Bing285,000,000JavaScriptC++, C#Microsoft SQL Server, Cosmos DBSearch engine from Microsoft.
eBay285,000,000JavaScriptJava, JavaScript, ScalaOracle DatabaseOnline auction house.
MSN280,000,000JavaScriptC#Microsoft SQL ServerAn email client, for simple use. Previously known as "messenger", not to be confused with Facebook's messaging platform.
LinkedIn260,000,000JavaScriptJava, JavaScript, ScalaVoldemortWorld's largest professional network.
Pinterest250,000,000JavaScriptPython, ErlangMySQL, RedisSearch engine for ideas.
WordPress.com240,000,000JavaScriptPHPPostgreSQL, HBase, Cassandra, MongoDB,Website manager software.

*data on programming languages are based on:
WebsitesC#CC++DErlangGoHackJavaJavaScriptPerlPHPPythonRubyScalaXhp
GoogleNoYesYesNoNoYesNoYesNoNoNoYesNoNoNo
YouTubeNoYesYesNoNoYesNoYesNoNoNoYesNoNoNo
FacebookNoNoYesYesYesYesYesYesNoNoYesYesNoNoYes
YahooNoYesYesNoNoYesNoYesYesYesYesYesYesYesNo
AmazonNoNoYesNoNoNoNoYesNoYesNoNoNoNoNo
WikipediaNoNoNoNoNoNoNoNoNoNoYesNoNoNoNo
TwitterNoNoYesNoNoNoNoYesNoNoNoNoYesYesNo
BingYesNoYesNoNoNoNoNoNoNoNoNoNoNoNo
eBayNoNoNoNoNoNoNoYesYesNoNoNoNoYesNo
MSNYesNoNoNoNoNoNoNoNoNoNoNoNoNoNo
LinkedInNoNoNoNoNoNoNoYesYesNoNoNoNoYesNo
PinterestNoNoNoNoYesNoNoNoNoNoNoYesNoNoNo
WordPress.comNoNoNoNoNoNoNoNoNoNoYesNoNoNoNo