When comparing Google Pagespeed Insights Online vs MaxCDN Tools, the Slant community recommends Google Pagespeed Insights Online for most people. In the question“What are the best website speed profilers?” Google Pagespeed Insights Online is ranked 2nd while MaxCDN Tools is ranked 4th. The most important reason people chose Google Pagespeed Insights Online is:
Considering the fact that a large fraction of people nowadays visit websites from mobile devices, it is very important that your site performs well on mobile browsers too. To help you with increasing your site's performance in the mobile arena, Google Page-speed has you covered, it'll test your site with respect to mobile platforms and provide you a detailed report of your current score and what you can do to improve it.
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Pros
Pro Provides mobile pagespeed score as well
Considering the fact that a large fraction of people nowadays visit websites from mobile devices, it is very important that your site performs well on mobile browsers too. To help you with increasing your site's performance in the mobile arena, Google Page-speed has you covered, it'll test your site with respect to mobile platforms and provide you a detailed report of your current score and what you can do to improve it.
Pro Free
Pro Provides a very detailed report of its findings
Once you test your website using Google pagespeed online, it not only gives you a score of how fast your website is, but also what you can do to improve it. These optimization tips can range from minifying assets and optimizing images to leveraging browser caching. Following these you could improve, not only your pagespeed score but also your rank in Google search results
Pro Comparison
It enables you compare performance for two domains, great for testing different environments or seeing how your site does against a competitor.
Pro Test ping speeds from different locations
You can see by what margins your results vary when your website's ping is tested from 2 different locations, you can then compare your results with those of your competitors.
Cons
Con No option for location of test
Even though Google's Pagespeed Insights does quite an amazing job as a speed profiler, currently it doesn't provide you with the option of analyzing your website from a specific location.
Con Limited actionable data
Provides unhelpful instructions like "eliminate blocking JS", well duh, but what JS is blocking? Without a waterfall/HAR like the other's GPS is seriously lacking in usefulness.
Con Only for testing pings
Does not provide much of a detailed report, of how your website performed. But again, MaxCDN Tools, as the site's slogan says - is more of a Ping testing and comparison service than a full fledged website speed profiler.