Prefetch
Prefetch is a resource hint (``) that tells a browser to fetch a resource with low priority because it might be needed for a future navigation. The browser can then download this resource during idle time when there is spare bandwidth available. This is different from Preload, which is a high-priority hint for a resource needed on the current page.
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.