Youngsage:

You mean naija hosts can't handle sites with much traffic? Pls explain

Hosting is generally expensive. So what Nigerian hosting companies and many others do to cut the cost is what is called "shared hosting". It means several domains sharing a server and also the cost. This situation causes problems for a site with large traffic because of limited space.

There is also dedicated hosting. A domain to a server. This one is expensive for most start ups