We’ve been tweaking with the gzip compression on the web server that hosts thebuzzmedia.com, and thebuzzmedia.com and I kept having to dig for online tools to quickly and easily test if the compression was working and by how much. (We’ve been adjusting the DeflateCompressionLevel argument to find a good balance between compressed page content and server CPU load during high traffic spikes).
As it turns out the already excellent “What’s my IP Address?” online tool provides an HTTP Compression Test Tool that we thought other folks might want to bookmark for later use – enjoy!


it seems like this tool only checks if the site has gzip or not, but i recently found a tool that gzip compresses site’s css and javascript from a url, hope it helps : http://www.zbugs.com
Another good tool that can be used as alternative:
http://www.sysadmin.md:3000/
Also, for commandline testing you can use wget:
wget –save-headers –header\=”Accept-Encoding: gzip,deflate” http://website.com