I've recently started work on a new clients website and done some preliminary work with on-page optimisation, and there is still plenty of work to be done and issues to resolve. They are ranking ok on Bing, but they are not getting any ranking on Google at all (except paid) - I tried the site:domain.com search and comes up with no results... so this confirms that something is going on with the google search rank! Can anyone shed light on what can cause this or why this would happen? My next step is to look at their webmaster tools (haven't had access yet), but if anyone has any tips to resolve this or where to look, that would be great! Thanks!