Question posted in 
When I add the home page link in the GTmetrix for analysis does it yields results for the whole website or just the home page?I have some issues only for my home page.I need to have the clear idea is to whether it is giving result for all the pages of my website of just the home page.And if it does analyze the entire website what should be the approach to analyze just my home page?
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Answers
It analysys only page you have entered to. It check time of script loading, DNS response, generation page time and many other parameters, but only for one page.
GTmetrix is analysis only enter URL not whole URL of your main sites. If you want to get idea only about home page than check the particular URL in GTmetrix and get data about that.