The Google PageSpeed Module automatically rewrites and optimizes resources on your web site according to best standards. The optimizations help your site load quickly. They also help boost SEO by having a faster page load time.
The PageSpeed module does utilize some caching to help boost your site. Follow the steps below in case you wish to disable cache temporarily, or if you wish stop using the module.
How to disable PageSpeed on your website?
To temporarily disable, access the URL as followed; http://example.com/?ModPagespeed=off (change the example URL to your own domain name).
To permanently disable add the following lines in your .htaccess file;