Est. employees
20,000+
| Web Analytics & Measurement | |
| Azure Monitor Microsoft cloud service collecting telemetry and monitoring application performance. | 91.3K sites |
| Email & Push Marketing | |
| Mailchimp Email marketing platform for campaigns and audience management | 4.2M sites |
| Business Email & Productivity | |
| Google Workspace Google suite for business email, docs, and collaboration tools | 20.2M sites |
| Microsoft 365 Microsoft suite for business email, office apps, and collaboration | 18.2M sites |
| Zoho Mail Business email hosting service from Zoho | 2.6M sites |
| Communications | |
| Postmark Transactional email delivery service for applications. | 749.6K sites |
| SendGrid Cloud email delivery service for transactional and marketing mail | 3.8M sites |
| Hosting & Cloud Providers | |
| Azure Microsoft cloud platform for hosting and compute services | 1.1M sites |
| Microsoft Azure Microsoft cloud platform for hosting and compute services | 1.8M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 149.4M sites |
| Microsoft HTTPAPI Windows kernel-mode HTTP server API component. | 849.6K sites |
| SEO & Content Discovery | |
| Google Generic Google service or script detected on the site | 32.3M sites |
| other | |
| Everlytic Bulk email and SMS marketing platform from South Africa | 1M sites |
| Mandrill Transactional email add-on for Mailchimp accounts | 1.2M sites |
| Resend Transactional email delivery service aimed at developers | 1.6M sites |
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