One can establish a link from a website to a Google+ page by adding a rel="publisher" link in the head of the index.html document (for example). But, should or can this link be set on all pages of ...
I have met the following HTML code: <a rel="douche" href="...">blah</a> And I am wondering what is the effect of the "douche" attribute.
Does it make sense to have a rel="nofollow" attribute in img tag? Do search engines' crawlers use this attribute in some way for calculating PageRank score? What is the practical sense for using it ...