I\'m trying to speed up my website. Google insights (https://developers.google.com/speed/pagespeed/insights) tells me that a critical problem is to enable GZip compression.
Google has addressed this exact same concern in their FAQ as why would you get the errors to compress/gzip your files.
Checkout from Google's Insights: https://developers.google.com/speed/docs/insights/EnableCompression#FAQ
Earlier they used to have a chome extension but now it has been removed so they point you to https://developers.google.com/speed/pagespeed/insights/ where when you enter any url, they tell which particular files or scripts are still eligible for compression or blocking the page render or both.
Hope this helps.