Load external website into my own website through ajax

Is it possible to load an external website into my 开发者_如何学Goown existing page?

Or, is this a security risk, and will it not be allowed, or is it too uncommon and a burden to accomplish?

If so, would I need to make an ajax call to do this?

Thanks.

Ajax: Won't work easely. It's called cross-domain ajax requests and it's not easy to implement (see http://www.peachpit.com/blogs/blog.aspx?uk=Performing-Cross-Domain-Ajax-Requests).

IFrame: Will work.