Will your website look the same when people start browsing it in Internet Explorer 10? To find out, you can use the just released IE10 Compat Inspector.
Compat Inspector for Internet Explorer 10 is now available from Microsoft. You can use Compat Inspector to quickly identify if the new Internet Explorer platform changes will affect your website.
To find out, run Compat Inspector on any page experiencing problems and check out for messages explaining potential problems and steps you could take to help resolve the issues.
Compat Inspector is designed to help folks who are managing websites, migrating to Internet Explorer 9 or 10 and not those running in legacy modes.
You can get more details on it at MSDN Blogs.