robots meta tags for SEO？

[AnnaKovac]

hello friend !!
There are two important considerations when using the robots <META> tag:
    * robots can ignore your <META> tag. Especially malware robots that scan the web for security vulnerabilities, and email address harvesters used by spammers will pay no attention.
    * the NOFOLLOW directive only applies to links on this page. It's entirely likely that a robot might find the same links on some other page without a NOFOLLOW (perhaps on some other site), and so still arrives at your undesired page.
thanks.............

[globalseo]

The robots exclusion protocol (REP), or robots.txt is a text file webmasters create to instruct robots (typically search engine robots) on how to crawl & index pages on their website. Ex.<meta name="robots" content="robots-terms">

[seoguro]

rebots file is use to stop crawler for crawling on page.

[emedianetwork]

By default, all pages are indexed and followed, but if you want to stop indexing a page or set of pages or even a folder, it can be done through Robots.txt file. When we set a page or folder no index, keep it very carefully.. 

[Derickalex]

Must include <meta name="robots" content="follow, index"/> within header of homepage and innerpages to let search engine index and follow your webpage

[kumar29]

The robots meta tag helps the search engines to index your Website. It also tells the search engines what directories/files you do not want them to index. Along with the robots meta tag you have to create a "robots.txt" file and upload it to the root directory of your site.