10 KiB
| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Page load time - Glossary | MDN | 1/3 | https://developer.mozilla.org/en-US/docs/Glossary/Page_load_time | reference | web, html, css, javascript, documentation | 2026-05-05T05:39:50.465121+00:00 | kb-cron |
MDN HTML HTML: Markup language
HTML reference
HTML guides
Markup languages
CSS reference
CSS guides
Layout cookbook
JavaScriptJS JavaScript: Scripting language
JS reference
JS guides
Web APIs Web APIs: Programming interfaces
Web API reference
Web API guides
- Using the Web animation API
- Using the Fetch API
- Working with the History API
- Using the Web speech API
- Using web workers
Technologies
Topics
Learn Learn web development
Frontend developer course
- Getting started modules
- Core modules
- MDN Curriculum
- Check out the video course from Scrimba, our partner
Learn HTML
Learn CSS
Learn JavaScript
Tools Discover our tools
About Get to know MDN better
Page load time
Page load time is the time it takes for a page to load, measured from navigation start to the start of the load event. While page load time 'sounds' like the perfect web performance metric, it isn't. Load times can vary greatly between users depending on device capabilities, network conditions, and, to a lesser extent, distance from the server. The development environment, where page load time is measured, is likely an optimal experience, not reflective of your users' reality. In addition, web performance isn't just about when the load event happens. It's also about perceived performance, responsiveness, jank and jitter.