Hi, Yea I’m seeing this as well using the site: operator on some websites I’m seeing Yahoo indexing 301 redirects incorrectly again, PPC urls and many more that normally wouldn’t 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 url’s 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.
Vimes.
