| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| Communications | |
| Amazon SES Amazon service for sending transactional and bulk email | 1.4M sites |
| Hosting & Cloud Providers | |
| Hetzner German provider of dedicated servers and cloud hosting | 10.1M sites |
| Plesk Web hosting control panel for managing servers and sites | 5.6M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 146.9M sites |
| OpenResty Nginx-based web platform bundling Lua scripting support | 29.8M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| Front-End Frameworks & UI Toolkits | |
| PWA Progressive web app technology enabling installable, offline-capable sites | 29.5M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| SEO & Content Discovery | |
| Google Generic Google service or script detected on the site | 37M sites |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 133.1M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Resend Transactional email delivery service aimed at developers | 1.6M sites |
| FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP Other | 726.7K sites |
| Scudo | 11 sites |
| Agentyllo Commerce & Selling | 2 sites |
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