Since last year, Yahoo! is transitioning the backend for organic search to Microsoft search platform as part of the Yahoo! & Microsoft Search Alliance. The transition of algorithmic search results for Yahoo! Search result pages is complete for US, Canada, Australia, Brazil, Mexico, and the transition to the rest of world markets will happen later this year. Today, Yahoo Search team announced that once the transition to Bing is done in all markets, Yahoo! Site Explorer will be discontinued.
"Having two webmaster portals for a single source for organic results doesn't add enough value. Once organic results are transitioned to Bing in all the markets, we plan to shut down Yahoo! Site Explorer and Microsoft's Webmaster Tools will be the source for Bing and Yahoo! webmaster site and analytics data," revealed Y! search team.
Here're some questions and answers:
Should I start using Bing Webmaster Center?
Yes, webmasters should start using Bing Webmaster Center.
Does it mean that I don't have to optimize for Yahoo! and Bing Search engines separately in the future?
That is correct. We anticipate that later this year, Yahoo!'s organic results will be powered by Microsoft's search platform in all parts of the world. After that point, any optimization that you do on Bing Webmaster Center tool will be reflected in Yahoo! organic search results.
Will Yahoo! continue to crawl my website?
Although the organic results will be powered by Microsoft Search platforms, Yahoo! will continue to innovate on the search experience beyond the services delivered by Microsoft. In order to provide Yahoo! users with an amazing search experience, our slurp crawlers may continue to selectively crawl websites to help support these efforts.
[Source: Y! Search blog]