Copyscape - this is a completely separate program. If you want to use Copyscape,
you need to sign up with them and purchase some credits. The API is available for
the convenience of IAW3 users who are also Copyscape users. You do not need to have
Copyscape in order to use IAW3.
What’s the page fetching speed? This is UP TO 300 pages of research from each source.
This can be too much for some systems - reducing this can give better results.