How to parse the site while maintaining the structure?

Question

CMS

They offer to buy a site in the form of "I transfer the domain, and parse the information," arguing that the engine is very author's and is not subject to distribution. The price, etc. suits.
Tell me how you can parse the site one to one with the entire URL structure. So that the search engine does not throw it away after the transfer.

Answer 1

Very strange, most likely they do not have access to the database or files. Looks like a divorce...

Answer 2

Let them give a database dump and statics, understand the structure and then migrate the data to your engine.

Answer 3

If you just need a napshot, I once used Teleport Pro. But anyway, then you have to import the data into the CMS, so why not do it right away?