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It uses the Bing index, but there are at least some differences in how it retrieves and prioritizes results. (If you run the same search on yahoo and bing, eve
by tempestn 12y ago
It uses the Bing index, but there are at least some differences in how it retrieves and prioritizes results. (If you run the same search on yahoo and bing, even with fresh cookies, you won't normally get identical results.)
Yahoo may do some spidering of their own as well, although not to my knowledge. I know at least the above is true though. Also as an aside the Yahoo BOSS API is significantly more powerful than the comparable Azure Bing web search API. Unfortunately, they also just doubled the access price this month.