According to the robots.txt specifications I found at Google, it's possible to exclude "orthogonal" pages like &displaytype=print or ;displaytype=edithistory with wildcards.

Any reason not to add

to the list? (Untested)

Bing also suggests adding noindex-meta tags to the pages.

On a tangent

Ideally robots would be presented with a page without nodelets, but I'm not aware of an efficient solution, except checking the user-agent before building the page.

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

In reply to Re^8: Super search use DuckDuckGo link broken (excluding special pages and noise) by LanX
in thread Super search use DuckDuckGo link broken by Anonymous Monk

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