My colleagues and I are stumped on this one. I hope someone can help. Yahoo's natural search results are showing our URLs with CJ and Google tracking code on the end of URLs. Unfortunately, it doesn't show the code that would point us to the specific CJ affiliate. . .just shows "aid=CJ" on the end. It's mainly CJ showing up, but occassionally a Google generic tracking code will show.
We checked our bot log reports and verified that yes, the Yahoo bot is following these links. However, the other search engines also frequently follow affiliate or google PPC links but do not display them in their search results.
Any idea what could be going on? We think it's a problem with Yahoo's algorithm, but I'm not completely convinced.
Yea Iím seeing this as well using the site: operator on some websites Iím seeing Yahoo indexing 301 redirects incorrectly again, PPC urls and many more that normally wouldnít get indexed. I first noticed these around the last weather report I think the 25th of October. Whole sites have dropped out of the rankings because of these, the sites are still in the index, but I think a filter is being applied due to a duplicate problem. Unfairly due to Yahoo indexing multiple redirected urlís with the same content.
these are the common factors i've seen.
site wide redirects either www - non-www or vice-versa. PPC campaign URL's with redirects and with out redirects. indexing of pages that are blocked in a robots text file.(url only listings but they still shouldn't be in the index)
got no answers for you unfortunately (other than its a glitch)
but it would appear that they are having great difficulty again.