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Hi Conrad, Unfortunately every migration is going to yield different results in terms of how well the redirection goes and how long you have to wait to get your rankings back if they suffer. Thomas' experience is fairly typical (and the resources he cites here are good too). It's impossible to say what will happen - a particularly large site (let's say a big e-commerce site for a high-street retailer) might suffer due to the sheer volume of URLs that need to be moved and picked up by Google; a small website may have an easier time. However, metrics like the age and authority of the moving website may well play into how successful the move is as well. As such, it's really hard to say exactly how a migration will go without seeing the sites (and even then, ranking problems can crop up that were unexpected). Cheers, Jane