| Websites | Popularity
| Front-end
| Back-end
| Database |
| Google | 2,800,000,000 | JavaScript, TypeScript | C, C++, Go, Java, Python, Node | Bigtable, MariaDB |
| Facebook | 1,100,000,000 | JavaScript, TypeScript, Flow | Hack/HHVM, PHP, Python, C++, Java, Erlang, D, Haskell | MariaDB, MySQL, HBase, Cassandra |
| YouTube | 1,100,000,000 | JavaScript, TypeScript | Python, C, C++, Java, Go | Vitess, BigTable, MariaDB |
| Yahoo | 750,000,000 | JavaScript | PHP | PostgreSQL, HBase, Cassandra, MongoDB, |
| Etsy | 516,000,000
| JavaScript | PHP | MySQL, Redis |
| Amazon | 2,400,000,000 | JavaScript | Java, C++, Perl | DynamoDB, RDS/Aurora, Redshift |
| Wikipedia | 475,000,000 | JavaScript | PHP | MariaDB |
| Fandom | 315,000,000 | JavaScript | PHP | MySQL |
| X | 290,000,000 | JavaScript | C++, Java, Scala, Ruby | MySQL |
| Bing | 285,000,000 | JavaScript | C++, C# | Microsoft SQL Server, Cosmos DB |
| eBay | 285,000,000 | JavaScript | Java, JavaScript, Scala | Oracle Database |
| MSN | 280,000,000 | JavaScript | C# | Microsoft SQL Server |
| LinkedIn | 260,000,000 | JavaScript | Java, JavaScript, Scala | Venice |
| Pinterest | 250,000,000 | JavaScript | Python, Erlang, Elixir | MySQL, Redis |
| WordPress.com | 240,000,000 | JavaScript | PHP | MariaDB |
| Netflix | 223.090.000 | JavaScript | Python, Java | NMDB, PostgreSQL |