Sounds a little dodgy. A few possible concerns: - they may "over-optimize" your site, since it is now in their best interest to do so, whereas it may be in you

Sounds a little dodgy. A few possible concerns: - they may "over-optimize" your site, since it is now in their best interest to do so, whereas it may be in your best interest to slightly under-optimize the site and shoot for longer-term growth. - they probably won't do anything you can't easily do. - you are giving the keys of the kingdom to the competition? I don't think this is a standard offer. Worth looking at, but be careful with the details, and make it so that you can stop the deal at any time. Also, the biggest concern is that they will basically get the rewards of your growth, for free. Even if they don't do anything special, they'll still get 50% of all your growth from now on. Growth that will happen anyways. That's not a good deal, and even if you'd want to work with these people, it would then likely make sense to wait 6 months so you can up your baseline. Get the details and do some math :)