Use Of Robot.txt File
Crowler is a computer program which automatically browse internet and index new information in its database. Crawler can be said as indexer, bot, web spider, web robot etc. Google’s crawler is named as Googlebot. Googlebot is always visit the all website and crawl the new website and post new information in google database. Robot.txt is a file which you can stop crawler or search engine indexing a part of your webpage or blog. There are are some pages in your webpage which is unnecessary for visitors or search engine or you don’t want to show that page, robot.txt is the best solution for that. You can make those file via google webmaster tools.Awareness About Nofollw link
When Googlebot crawls a site its also crawle the link found of another sites. Its impact a of a PR(Page Rank) effect of this site. You can use nofollow attribute for surviving from this. Its actually used in comment form of a site for protecting a website or blog from spamming. But its better to don’t use nofollow in comment because a reader will don’t like to comment in your site.You May Also Like
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