Specs are quantitative aspects of the option such as the price
Pros
Pro
Provides a very detailed analysis report
Like all of its competitors GTMetrix also does provide an extremely detailed report of its findings, which include a really useful waterfall feature and the famous and extremely informative YSlow website speed grading as well.
GTMetrix.com have their servers in a number of countries, these give you the freedom to profile your website from the location where most of your traffic originates from