Deployment Detection
This is an automatic Speed Kit mechanism that detects when a major update or new version of your website has been released (a "deployment"). Speed Kit can detect this by monitoring for changes in asset file names or through an API call from your development pipeline. When a deployment is detected, Speed Kit initiates a process to safely update all its caches with the new content, ensuring that users always see the latest version of your site.
Related web performance terms
- DOM (Document Object Model)
The DOM is a tree-like representation of all the elements in an HTML document that is created by the browser when it loads a page.
- DOM Content Loaded
DOM Content Loaded (DOMContentLoaded or DCL) is a browser event that fires when the initial HTML document has been completely loaded and parsed, without waiting for stylesheets, images, and subframes to finish loading.
- DOM Size
DOM Size refers to the total number of elements (nodes) and the complexity of their nesting within a page's HTML structure.
- Deferred JS loading
Deferred JS loading is a technique for loading JavaScript files in a non-blocking way using the `defer` attribute on a `<script>` tag.