lucy24 - 12:23 am on Jul 27, 2011 (gmt 0)

these urls are not 404 - if they were there wouldn't be a duplicate title problem.

They could be both, with different Discovery Dates.

clicking on any links above will not see any webpage.

If the pages don't exist, and clicking on the links doesn't lead to anything, where are the duplicate titles coming from? It seems a little unfair to cry Duplicate Title when the title in question is "404--Page Not Found" ;)

I haven't had a "Duplicate Title" in a while. Is there a "date discovered" column as in the Crawl Errors? How old are the nonexistent pages?