Est. employees
11 to 50
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| Business Email & Productivity | |
| Fastmail Hosted email provider with calendar and contacts for businesses. | 238.2K sites |
| CDN & Edge Delivery | |
| Akamai Global content delivery and edge computing network | 4.4M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Keybase Encrypted messaging and identity verification service. | 29.1K sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M sites |
| Debian Stable Linux operating system commonly used on servers | 2.9M 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 |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 53M 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 |
| Media, Maps & Social | |
| YouTube Video hosting platform whose players embed into web pages | 8M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Fonts & Icons | |
| Gravatar Service serving globally recognized avatar images by email | 1.2M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Ithemes Security | 754.7K sites |
| WebSub (FKA. PubSubHubbub) Content & Media | 29.4K sites |
| ActivityPub Other | 5.9K sites |
| Press This Content & Media | 2.7K sites |
| Nodeinfo2 | 922 sites |
| NodeInfo(2) Other | 922 sites |
| Webmention Other | 876 sites |
| Friends Content & Media | 848 sites |
| Enable Mastodon Apps Other | 507 sites |
| IndieAuth Security & Privacy | 403 sites |
| ATmosphere Other | 323 sites |
| Micropub Other | 218 sites |
| Parse This | 138 sites |
| Post Kinds | 129 sites |
| IndieBlocks Design & Themes | 116 sites |
A free account doubles your daily searches.
