| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| WordPress Site Editor Full-site editing interface built into modern WordPress | 5.1M sites |
| Business Email & Productivity | |
| Rackspace Managed cloud and hosting services provider | 2M sites |
| Hosting & Cloud Providers | |
| Hetzner German provider of dedicated servers and cloud hosting | 6M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M sites |
| Debian Stable Linux operating system commonly used on servers | 2.9M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 74.5M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Two Factor Security & Privacy | 644.8K sites |
| FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP Other | 468.2K sites |
| Instant Images – One-click Image Uploads from Unsplash, Openverse, Pixabay, Pexels, and Giphy Other | 134.4K sites |
| Block Visibility — Conditional Visibility Control for the Block Editor Other | 41.3K sites |
| ActivityPub Other | 5.9K sites |
| Nodeinfo2 | 922 sites |
| NodeInfo(2) Other | 922 sites |
| Webmention Other | 876 sites |
| Friends Content & Media | 848 sites |
| Enable Mastodon Apps Other | 507 sites |
| Easy Directory Listing For Wordpress | 329 sites |
| ATmosphere Other | 323 sites |
| Efml | 229 sites |
| External files in Media Library Content & Media | 216 sites |
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