| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 59.7M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 63.8M sites |
| Advertising & Conversion Tracking | |
| DoubleClick Floodlight Google tag tracking conversions from advertising campaigns | 3.3M sites |
| Google Ads Google advertising platform for search and display campaigns | 7.2M sites |
| Linkedin Insight Tag LinkedIn tag tracking ad conversions and building audiences | 3.8M sites |
| Email & Push Marketing | |
| Campaign Monitor Email marketing platform for designing and sending campaigns | 158K sites |
| Mailchimp Email marketing platform for campaigns and audience management | 4.2M sites |
| Business Email & Productivity | |
| Microsoft 365 Microsoft suite for business email, office apps, and collaboration | 18.2M sites |
| Business & Collaboration Apps | |
| DocuSign Electronic signature and agreement management platform | 56.9K sites |
| Hosting & Cloud Providers | |
| AWS Amazon cloud platform offering compute, storage, and hosting services | 103.5M sites |
| Vercel Cloud platform for deploying and hosting frontend applications | 10.7M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| Front-End Frameworks & UI Toolkits | |
| Next.js React framework for server-rendered and static web apps | 6.3M sites |
| React JavaScript library for building component-based user interfaces | 30.2M sites |
| JavaScript Libraries & Widgets | |
| Swiper Modern touch slider and carousel library for web and mobile | 25M sites |
| Webpack Module bundler compiling JavaScript assets for the browser | 6.6M 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 | |
| Google Generic Google service or script detected on the site | 32.3M sites |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| Fonts & Icons | |
| Lucide Open-source icon library of clean, consistent SVG icons | 6M sites |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| ClickFunnels Sales funnel and landing page builder for online sellers | 48.4K sites |
| Microsoft Dynamics 365 Microsoft suite of CRM and ERP business applications | 22.7K sites |
| OpenAI Developer of the GPT models, ChatGPT and the API behind them. Sites listed here have verified their domain with OpenAI | 248.1K sites |
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