How to Write Robots.txt for Your Website?

To exclude all robots from the entire server

User-agent: *
Disallow: /

To allow all robots complete access

User-agent: *
Disallow:

(or just create an empty “/robots.txt” file, or don’t use one at all)

To exclude all robots from part of the server

User-agent: *
Disallow: /cgi-bin/
Disallow: /tmp/
Disallow: /junk/

To exclude a single robot

User-agent: BadBot
Disallow: /

To allow a single robot

User-agent: Google
Disallow:

User-agent: *
Disallow: /

To exclude all files except one

This is currently a bit awkward, as there is no “Allow” field. The easy way is to put all files to be disallowed into a separate directory, say “stuff”, and leave the one file in the level above this directory:

User-agent: *
Disallow: /~joe/stuff/

Alternatively you can explicitly disallow all disallowed pages:

User-agent: *
Disallow: /~joe/junk.html
Disallow: /~joe/foo.html
Disallow: /~joe/bar.html

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