We built our responsive pages, improved the look and feel, and also optimized the performance of our site. But before the application goes live, it is the duty of a developer (or dedicated tester) to test the performance of the website.
There is a set of tools that we can use:
mobiReady (http://ready.mobi/): This free tool is used for testing the performance of a responsive website across different resolutions in parallel. It gives each page a score out of five, based on factors such as data sent or received and number of requests made.
Webpagetest (http://www.webpagetest.org/): This online tool helps in testing the performance of a website with respect to specific location and browser for which we want the result. We can test a page for a number of different factors, such as caching static content, effective use of CDN, or if keep alive has been enabled.
Google's Pagespeed Insights Tool (https://developers.google.com/speed/pagespeed/insights/): With this...