Nofollow is the value for
the rel attribute in an HTML element that aims to instruct search engines to
not explore the link so it does not affect the ranking in the search engine
index. Usually rel = "nofollow" added to the external links or links
that lead to the outside of the website or blog.
To make it easier to add rel
= "nofollow" on external links automatically, we could use jquery. It
is useful to overcome the external links were added outside of our control such
as in a forum that allows members to create posts. Thus, although members of
the forum made a post by applying an external link, then the link will
automatically add rel = "nofolow".
To use an external jquery
this nofollow link rel Please copy the code below and save the above code </
body> and make sure we've put that script library jquery his work. In
addition to adding rel = "nofollow", this script also add target =
"_ blank" so that external links open in a new tab when a link is
clicked.
<script
type='text/javascript'>
//<![CDATA[
$("a").filter(function(){return
this.hostname&&this.hostname!==location.hostname}).attr('rel',
'nofollow').attr('target', '_blank');
//]]>
</script>
Good luck....