| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 12.2M sites |
| WordPress Site Editor Full-site editing interface built into modern WordPress | 4.1M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 129.2M sites |
| Really Simple SSL & Security WordPress plugin enforcing HTTPS and hardening site security | 4.9M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 72.1M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 65.2M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| Wpforms | 3.9M sites |
| Kb Mailerlite | 594.8K sites |
| Kb Fluentcrm | 594.4K sites |
| Kbp | 593.5K sites |
| Kb Lottieanimation | 590.4K sites |
| Kb Image Picker | 577.9K sites |
| Kb Design Library | 573.4K sites |
| Kb Getresponse | 571.9K sites |
| Kb Vector | 544.5K sites |
| WP Mail SMTP by WPForms – Free SMTP Plugin with Gmail, Outlook, Amazon SES, SendGrid, Mailgun, Zoho & other SMTP Marketing & Email | 452K sites |
| Liquidweb | 416.4K sites |
| Kb Mailchimp | 174.4K sites |
| Kb Sendinblue | 174.2K sites |
| Kbpp | 174K sites |
| Kbp Dynamic | 174K sites |
| Kb Activecampaign | 171.8K sites |
| Kb Convertkit | 168.9K sites |
| Kb Custom Svg | 159.4K sites |
| Kadence Creative Kit | 12K sites |
| Sprint Connect for HelloAsso Commerce & Selling | 4 sites |
| Sprint Emploi | 2 sites |
| Gf Helloasso | 1 sites |
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