Johannes Beus
In theory this is quite simple: every site has exactly one URL at which it is available. Sadly this often looks different in reality. You can generally find the homepage for web-projects at http://example.org/ as well as http://example.org/index.html and often at a variety of hostnames. Searchengines such as Google certainly know about this problem and, to the best of their abilities, try to pool the various URLs into one.
So why is this nice man telling me this now, this is nothing new? Even though the quality of Google's products is above average, sometimes even they make mistakes. And sometimes these mistakes lead to interesting conclusions. Many conjectures were made about the PageRank-depreciations, which
began last October, in that they only change the displayed PageRank for the Google-Toolbar while Google still works with the “correct” PageRank internally. This idea was nurtured by the fact that the ranking and other hints, that should have suffered due to a noticeable decrease in PageRank, were not altered. On the front lines of depreciated sites was the blog of
Robert Basic which can be reached at www.basicthinking.de/blog/. The servers, which deliver the PageRank to the toolbar, only show a
PR3 instead of the initial
PR6. Although if you take the last slash in the URL away and display the PageRank for the URL you will still see the actual PageRank of 6. This also works for Heise's
Telepolis which was depreciated from
PR7 to
PR5. It seems there is still some demand for coordination as far as the “correct “ PageRank is concerned...
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