- Blocked resources
Blocked resources are CSS, JavaScript, image, and other files that a crawler is not allowed to fetch while rendering a page, usually …
- DOM
The Document Object Model (DOM) is the structure a browser builds in memory from a web page.
- Headless browser
A headless browser is a web browser that runs without a visible user interface and is controlled through code or the command line.
- Raw HTML / source code
Raw HTML is the source code of a web page as the server delivers it in the HTTP response, before a browser or crawler has run any …
- Render-blocking resources
Render-blocking resources are files, mostly CSS and JavaScript, that the browser has to load and process before it can display page content.
- Rendered HTML
Rendered HTML is the markup of a page after JavaScript has run, in other words the current state of the DOM.
- Web Rendering Service
The Web Rendering Service (WRS) is the component of Google Search that renders pages and executes their JavaScript.