There is a secondary registrar check built-in, so shouldn't happen very often, so that's the amount external domains we found. Then out of those how many of them are expired domains we've found which will appear in here or in any of the other ones, depending on which type of crawl were running, and that's just simply how long this crewel has been running. So we've got a lot of the similar settings here, in the search query crawl. We have how many queries have been blocked, which you shouldn't get many with any blocked because you're, not hammering google, you know you're sending one query and then processing the results and then sending another query see not scraping Google all all at once. So that's how many queries we've done and how many we've got left to process.
Referring domains for anchor phrases usually reveals similar information. What you really want to look out for is whether or not the site has been picked up by a spammer in the past. A lot of times these expired domains were dropped, picked up by a website owner who then tried to rank it for keywords like Viagra, Cialis and whatever. You obviously don’t want that kind of domain.