| 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 |
| Snowplow Analytics Open-source behavioral data and analytics platform. | 174.8K sites |
| Advertising & Conversion Tracking | |
| Amazon Advertising Amazon's advertising and product promotion platform. | 108.3K sites |
| DoubleClick Floodlight Google tag tracking conversions from advertising campaigns | 3.3M sites |
| Google AdSense Google program displaying ads and monetizing site content | 4.7M sites |
| Google Publisher Tag Google Ad Manager tag serving ads into page slots | 455.6K sites |
| theTradeDesk Programmatic advertising demand-side platform. | 130.3K sites |
| Email & Push Marketing | |
| Sailthru Email marketing and personalization platform for retailers and publishers | 13.3K sites |
| Hosting & Cloud Providers | |
| AWS Amazon cloud platform offering compute, storage, and hosting services | 103.5M sites |
| Amazon S3 Amazon cloud object storage for files and static assets | 5.6M sites |
| Amazon Web Services Amazon cloud platform offering compute, storage, and hosting | 14.2M sites |
| CDN & Edge Delivery | |
| Google Hosted Libraries Google CDN serving popular open-source JavaScript libraries | 10.1M sites |
| jsDelivr Free open-source CDN for JavaScript, CSS, and assets | 19.2M sites |
| Security & Bot Defense | |
| Google Sign-in Google identity service enabling sign-in with a Google account | 1.4M sites |
| Privacy & Cookie Consent | |
| Funding Choices Google consent management for publisher ad compliance. | 184.9K sites |
| Osano Consent management and data privacy compliance platform. | 157.9K sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 153.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M 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 |
| Fonts & Icons | |
| Bootstrap Icons Free icon library from the Bootstrap project | 3.6M sites |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| Rubicon Project Programmatic advertising exchange, now part of Magnite | 29.7K sites |
| other | |
| 33Across Programmatic advertising and audience data platform for publishers | 16.4K sites |
| AccuWeather Weather forecast data and widgets for websites | 12.1K sites |
| Ad Lightning Service that detects and blocks bad ads on publisher sites | 5.7K sites |
| Hashtag Labs Ad tech provider handling header bidding for publishers | 13.5K sites |
| ID5 Shared advertising identity service for cookieless ad targeting | 34K sites |
| LiveIntent Advertising platform for placing ads in email newsletters | 27K sites |
| Marfeel Mobile web publishing and ad revenue platform for publishers | 5.9K sites |
| Nativo Native advertising platform for publishers and brands | 7.1K sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Wpcom | 2.2M sites |
| My Jetpack | 2.1M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 2.1M sites |
| Coauthors | 18.4K sites |
| Vip | 15.1K sites |
| Cron Control | 14.7K sites |
| ElasticPress Performance & Speed | 12.9K sites |
| Parse.ly Analytics | 9.9K sites |
| Apple News | 3.7K sites |
| Mobile | 1.6K sites |
| Post Next Content & Media | 1.6K sites |
| Zone Manager (Zoninator) Content & Media | 1.4K sites |
| Liveblog Other | 1.4K sites |
| Dfm | 696 sites |
| Co Authors | 689 sites |
| Wpqt | 679 sites |
| Dfm Transients | 676 sites |
| Mng | 676 sites |
| Mng Bluestars | 675 sites |
| Mng Sspw | 675 sites |
| Article Sharing | 660 sites |
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