| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 48.2M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 117.3M sites |
| Web Servers & Operating Systems | |
| IIS Microsoft Internet Information Services web server | 5.6M sites |
| Windows Server Microsoft server operating system for hosting applications | 5.7M sites |
| Languages & Back-End Frameworks | |
| Microsoft ASP.NET Microsoft web application framework for building server-side apps | 8.7M sites |
| other | |
| America-Net Ltda. | 502 sites |
| FrontPage Legacy Microsoft web authoring tool for building sites | 253.5K sites |
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