| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 67.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 89.1M sites |
| SEO & Content Discovery | |
| Google Generic Google service or script detected on the site | 34.7M sites |
| other | |
| As-Newage | 4 sites |
| Gentoo Source-based Linux distribution | 13K sites |
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