simple man: if you can see posts of a forum with their signature as a guest through search in google its do follow forum. No follow vice versa P.S : DP is no follow forum
Do Follow puts No Restrictions on the Search Engine Robots from following links on your page, either to other internal pages on your site, or to other web sites. Nofollow is a value that can be assigned to the rel attribute of an HTML a element to instruct some search engines that a hyperlink should not influence the link target's ranking in the search engine's index. It is intended to reduce the effectiveness of certain types of search engine spam, thereby improving the quality of search engine results and preventing spamdexing from occurring.
Nofollow is a value that can be assigned to the rel attribute of an HTML a element to instruct some search engines that a hyperlink should not influence the link target's ranking in the search engine's index. It is intended to reduce the effectiveness of certain types of search engine spam, thereby improving the quality of search engine results and preventing spamdexing from occurring.