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Yahoo Site Explorer is a wonderful tool to check your page index count and the number and source of links you have pointing to your site. But did you know that you get different results if you are logged into Site Explorer when compared to not being logged in and authenticated for that site?
Here is a Site Explorer search for this site, but I am not logged into Yahoo:
Notice, here Yahoo reports seroundtable.com to have 14,999 pages indexed in Yahoo and a total of 57,146 inlinks to the home page from all pages. Now let's compare...
Here is a Site Explorer search for this site, but this time I am logged into Yahoo under the account I authenticated this site for:
Notice, here Yahoo reports seroundtable.com to have 15,556 pages indexed in Yahoo and a total of 216,880 inlinks to the home page from all pages.
That is a huge difference in numbers. 57,146 inlinks and 216,880 inlinks is a huge difference in the amount of data one can get about a site.
Is it possible that Yahoo is pulling back on showing all linkage data for a site to anyone? Now you need to be the authenticated webmaster to see full data? This is similar to how Google works.
Forum discussion at WebmasterWorld.
