| Hosting & Cloud Providers | |
| Ptop Marubeni Oki Network Solutions Inc. | 146 sites |
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| Apache HTTP Server Long-established open-source web server software | 67.2M sites |
| CentOS Linux distribution commonly used on web servers | 768.4K sites |
| OpenSSL Cryptography toolkit implementing TLS and SSL protocols | 1.8M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 89.1M sites |
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