2. Getting an Accurate Average
You should run the test multiple times to get the average loading time, as it won’t always be the same.
If you’ve just introduced caching to your web, or modified some choices in your caching feature, the first time an user (including a Pingdom bot) reaches your website (unless it’s preloaded), they’ll get a non-cached version of the page.This visit allows the cache to be built, so the next user will get a faster cached version.
So when you run the speed test, the first result might be on an uncached version of your website, which is why it’s important to run the test a couple of times.
Some users just check a site’s homepage, which usually contains a lot more content than a normal website or article. So consider testing different types of content on your site to get a more comprehensive view of how fast your site as a whole is.
Visitors accessing the site from a search engine on many websites will reach the site on a blog post or individual page, not necessarily the homepage, so the performance of all pages needs to be fast.