What is default fiddler gzip configuration?

Question

I enable gzip compression for my tomcat by following setting:

compressableMimeType="text/html, text/xml, text/css, text/plain, application/json, application/javascript, application/x-javascript, application/xml"

but i cannot get the page size as low as when I use Fiddler's Transformer: Tomcat's output is 2.3MB vs Fiddler's is 2.0MB.

What is Fiddler's default gzip configuration?

Thank you in advance!

Answer 1

By default, Fiddler uses the Xceed Streaming Compression library for compression; the default compression level is "highest" which is probably equivalent to the "9" setting in other GZIP implementations.

http://doc.xceedsoft.com/products/XceedWfWorkflow/Xceed.Compression.Formats~Xceed.Compression.Formats.GZipCompressedStream~_ctor(Stream).html

Note that you can get even higher compression ratios using ZopFli.