I decided to try google pagespeed on my clients website. After testing the site everyhting seemed to be working fine. Two months have passed. Today I decided to google the company name to find the website had vanished from serps. I went straight to webmaster tools which required me to verify the owner of the site again despite it working for years. To my horror I found out that google had been unable to fetch pages due to 403 errors - although the website was working in browsers using the www. prefix. Unfortunately I discovered that non www. was producing 403. Goodle has deindexed many of the pages including the home page! This website had excellent serps and is 15 years old! I have now stopped using the pagespeed service and the website is working fine for both www and non www. I have pinged the pages and googlebot is visiting again. My question is will the serps recover and if so how long will this take? Is all my hard work on the site now wasted?