love Shanghai encyclopedia on the nofollow label is this:
nofollow tag usage is: here is the anchor text.
Why do you want to add the nofollow tag inside the
nofollow is an attribute of the HTML tag value. It provides a way for webmasters to tell the search engine " do not follow the links on this page " or " don’t keep track of the specific link ". This tag is to tell the meaning of the search engine of the link is not after the author trust, so this link is not a vote of confidence.
can be said that the main purpose of nofollow used in the chain, is to let the spider grab add > stop
but a lot of the time, the website internal links, such as contact us, we on this page in the search engine ranking is not required, of course, there is no need to transfer the weight, so when in the design of the site, it is normally the "plus nofollow, reduce the spider crawling time on these pages the other, thereby increasing the deeper web crawl opportunities.
to find out whether to use the nofollow tag will lose weight, we must first understand the meaning of nofollow tags, the search engine is how to define the label.
nofollow tag is a "anti spam links" Google leading innovative label, and loved Shanghai, Yahoo and other major search engines widely supported, reference nofollow tag is used to indicate the search engines do not track (i.e. crawl) on a web page with a nofollow attribute any outbound links, in order to reduce web spam links
The definition of
is itself weight is 10, there are 10 links, if one of the links with the nofollow label, the weights of the remaining 9 links are 10/10 or 10/9. If the weight loss itself is nofollow, the addition of the website weight, are not what effect is this really the case.
nofollow is the meaning of anti spam, in the chain, indicating the search engine spiders on the page with the nofollow attribute of outbound links without crawling and crawling, can be said to add nofollow tags for outbound links is not with any weight, need to check whether there is reason to add nofollow tags which is the exchange of friends chain.
nofollow is designed to reduce the spam links too much influence on the search engine website ranking effect, tell the search engine using nofollow tag links without tracking the crawl and transfer link weight, but the weight itself belongs to the site will not loss of