- You can manually enter sites you want to cross check, or grab the top ranked results from Yahoo! Search or Google.
- The depth limit acts as a noise filter since Yahoo! places some of the better backlinks near the top of their results.
- Hub pages which link to related resources may provide powerful links which are given a relevancy boost in community, topic, or authority based search algorithms such as TrustRank, Teoma's Topic Distilation, Hilltop, and Topic Sensitive PageRank.
- 403 errors means the API queries are used up for the day.
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