Preload
Preload is a resource hint () used in the HTML to instruct the browser to download a critical resource for the current page with high priority, before it would be discovered naturally. It is most effective for resources that are discovered late but are essential for the initial render, such as an LCP image loaded via a CSS background, a critical font file, or a key script.
Related web performance terms
- Page Load
Page Load refers to the entire process of a webpage becoming visible and interactive for a user, from the initial navigation request to the final rendering of content.
- Page Views (PIs)
Page Views is a metric that counts the total number of times a page on a website has been loaded or viewed by users. It is a fundamental measure of traffic and engagement.
- PageSpeed Insights (PSI)
PageSpeed Insights is a free tool from Google that analyzes the performance of a single webpage and provides suggestions for improvement.
- Passthrough Mode
Passthrough Mode is a temporary, protective state that Speed Kit enters when its Deployment Detection mechanism identifies a major website update.