Is there an equivalent to the mod_pagespeed Apache module for IIS?

Question

Is there an equivalent to mod_pagespeed Apache module but for IIS?

Answer 1

IISpeed is a full-featured pagespeed port to IIS. It requires a paid license for production servers to avoid showing a banner, but it is free to try out.

Full disclosure: I am one of the people working on the port. So I will not push this further than mentioning the port.

Answer 2

This isn't a direct mod_pagespeed replacement but does some work towards reducing the number of requests, minifying and bundling JS and CSS.

It even automatically provides lossless compression of PNG-images and creates sprites of your background images. See the RequestReduce library.

(not tried it myself)