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Q&A Revisions Should be Hidden from Search Engines

Are previous versions of a question/answer indexable by Google ?

Meaning, if a question is updated, there is still a trace of the old text under the revision history log. Is this page hidden from robots ?

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marked as duplicate by random, ChrisF, alex, fretje, marcgg Feb 3 '10 at 12:55

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Yes, feature-completed: meta.stackexchange.com/questions/14028/… –  random Feb 3 '10 at 11:53

1 Answer 1

up vote 6 down vote accepted

Check the robots.txt file and you'll see this chunk:

User-Agent: *
Allow: /
Disallow: /posts
Disallow: /posts/

All of the revision histories of each post sit in the posts folder.

Disallow here means that if the search engines are playing nice, or they take the lines as inherited, they won't index the revision history.

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I have no idea how I could have missed it, looks like I'm blind. +1 –  Andreas Bonini Feb 3 '10 at 11:58

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