| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 49.9M sites |
| Forms & Lead Capture | |
| Mailcheck JavaScript utility suggesting corrections for mistyped email addresses | 902K sites |
| Business Email & Productivity | |
| Google Workspace Google suite for business email, docs, and collaboration tools | 22.5M sites |
| Communications | |
| SendGrid Cloud email delivery service for transactional and marketing mail | 3.9M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 208.7M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 129.2M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 157.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| JavaScript Libraries & Widgets | |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 93.8M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 40.4M sites |
| punycode JavaScript utility encoding internationalized domain names | 1M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| Media, Maps & Social | |
| Google Maps Embeddable interactive maps and location services from Google | 9.7M 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 |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 16.4M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 94.4M sites |
| Yoast | 13.7M sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 5.8M sites |
| Wordfence Login Security Security & Privacy | 4.1M sites |
| Wpforms | 3.9M sites |
| WP Mail SMTP by WPForms – Free SMTP Plugin with Gmail, Outlook, Amazon SES, SendGrid, Mailgun, Zoho & other SMTP Marketing & Email | 452K sites |
| Nivoli Edge: Login Security, WP Audit and Firewall Security & Privacy | 10 sites |
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