How to check with curl if my website or the asset is gzipped ?

Problem :

You are trying to improve your PageSpeed score and trying to gzip the output of your website. You need to check from command line to see if your website output is gzipped.

Solution :

Use curl --compressed --head <your website URL or assets URL> command. If the content is gzipped, you should see this line in the reply.

Content-Encoding: gzip

By Adam Ng

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