🛠️ Tool
Freemium
Intermediate
This runs your site on real devices from real locations at set connection speeds, including Slow 3G, so you get an honest picture rather than a guess from your fast office wifi. It shows exactly which bytes and requests are hurting your load, and lets you test a repeat visit to check your caching. The closest you get to your user's experience without flying to their city.
WebPageTest
From WebPageTest (Catchpoint) by WebPageTest Web tool
- Test on a real device at a defined slow connection speed
- The waterfall shows precisely what is slowing the first load
- A second cached run reveals whether repeat visits are actually fast
