Google is discontinuing it’s PageSpeed service on August 3rd, 2015. This decision was made so the PageSpeed Service team could focus their efforts elsewhere.
PageSpeed Service is a free online service to automatically speeds up web pages. Google explains its decision to discontinue the service:
“We see much broader adoption of PageSpeed technology through our open-source products and have therefore decided to focus our efforts on improving those.”
It’s important to note that if you’re currently using Google’s PageSpeed service, you will have to change your DNS by August 2015 otherwise your site will be completely inaccessible.
You can see detailed instructions on how to remove your site from PageSpeed Service How to remove your site from PageSpeed.
