What KeyCDN measures
The test requests your page from one of ten test servers and reports total load time, page size, number of requests and a waterfall of every file. It is deliberately simple, so it is good for a fast answer rather than a deep investigation.
How to read your result
Page size is the number to watch here. Anything over about 2MB for a normal content page means images or fonts are doing more work than they need to. Compare the load time from a nearby server against a distant one to judge whether you need a CDN.
What to change first
If page size is high, find the largest image in the waterfall and re-export it at the size it actually displays. Most oversized images on the web are full resolution photos being shrunk by CSS to a fraction of their real dimensions.
Common questions
- Do I need a KeyCDN account to run the test?
- No. The speed test is free and open, and it does not require you to be a CDN customer.
- Which test location should I pick?
- Pick the one closest to most of your visitors, then run it again from a distant one. The difference between the two is the case for a CDN.
Related tests
Run this alongside every other test in Website Speed Tests, or start from the full list of website testing tools.