Robots Exclusion Protocol: now with even more flexibility Details
Posted: Friday, July 27, 2007
Google Official Blog
Robots meta tag and X-Robots-Tag HTTP header specifications Details
Last updated Februar 17, 2012.
Webmasters — Google Developers
Playing with the X-Robots-Tag HTTP header Details
20 January, 2008 by Joost de Valk
yoast.com
What is Robots.txt? Details
On moz.com>learn>seo>robotstxt
How to stop search engines from crawling the whole website? Details
Feb 1 ’12 at 20:34
stackoverflow.com
Apache Module mod_headers Details
Apache HTTP Server Version 2.2
httpd.apache.org>docs>2.2>mod
Header set X-Robots-Tag "noindex, noarchive, nosnippet, nofollow, noimageindex, noodp"
www.intelligentpositioning.com/blog/2009/08/x-robots-tag-control-google-indexing-via-http-headers/
http://noarchive.net/xrobots/
Saidul Hassan