I have a wordpress website I\'m creating for a client temporarily hosted on http://dev.eatfit.co.nz/
I\'m noticing that often (but not every time) that I browse a pa
I can confirm all the answers listed above. It looks like you've indeed turned it off via your .htaccess file. However I would like to know what functional problems you ran into with the CSS. I could not detect any visual difference on your home page with & without mod_pagespeed. If you found a bug we'd like to fix it.
It is true that it adds caching to your resources, but the server checks for changes every 5 minutes if you don't have an explicit TTL and writes out URLs with new content-hashes whenever the data changes. Even that 5-minute delay can admittedly get annoying while developing, but there is a relatively new feature: ModPagespeedLoadFromFile which makes deveoping with mod_pagespeed on much smoother and also improves server performance.
The benefits of all of this are that there are many fewer round-trips to your server and significantly lower latency to your end-users. Check out webpagetest results:
Video, mod_pagespeed on, mod_pagespeed off
Also, would you mind telling me what hosting provider you use that turns mod_pagespeed on by default? Thanks!