Web site

Speeding up web site loading

To exclude all robots from the entire server:

User-agent: *
Disallow: /

To exclude all robots from part of the server:

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

To allow a single robot:

User-agent: Google
Disallow:

User-agent: *
Disallow: /

To allow all robots complete access:

User-agent: *
Disallow:

See:

http://www.robotstxt.org/: Page provides description for robots.txt usual practice and discussion about possible standardization efforts.
http://www.robotstxt.org/robotstxt.html: About /robots.txt
http://www.robotstxt.org/faq.html: Frequently Asked Questions.
https://en.wikipedia.org/wiki/Robots_exclusion_standard: Wikipedia article on robots.txt.
http://googlewebmastercentral.blogspot.com/2008/06/improving-on-robots-exclusion-protocol.html: Improving on Robots Exclusion Protocol.

Sitemaps protocol allows a webmaster to inform search engines about URLs on a website that are available for crawling.

http://dev.opera.com/articles/view/mama/: Metadata Analysis and Mining Application

http://www.google.com/support/customsearch/: Custom Search Help
http://help.yahoo.com/l/uk/yahoo/search/basics/basics-13.html: Can I add a Yahoo! Search box to my site?