Apa sih dofollow dan nofollow dalam kegiatan SEO ? Sebuah link yang berasal dari website lain yang mengarah ke website kita mempunyai 2 tipe yang menguntungkan dan tidak bagi hasil pencarian di beberapa search engine besar, dalam hal ini google.com. Maaf sebelumnya, kami tidak punya artikel yang berbahasa Indonesia. Tapi kami yakin Anda bisa memahami bahasa Inggris.
If you’ve been doing any kind of reading about link building, then you’ve probably seen people mentioning “nofollow” and “dofollow” links. These are very important terms to understand when you are trying to build great links back to your site in order to increase your search engine rankings. But, to the person who is new to all of this, it may be kind of confusing. I am going to help break it down for you.
When creating a link on a webpage using HTML, the standard code for that link is:
It includes the HTML tag, the URL the link will be going to, the text that will be shown on the webpage for that link, and the closing HTML tag.
You are able to add more HTML to the code above, in order to tell the search engine spiders whether or not you want them to follow the link when crawling your website. You may be thinking… “Why wouldn’t I want the search engine spiders to see all of the links on my site?” This is a very valid concern, which I will address further down. First, I am going to show you how to modify the HTML in order to tell the search engine spiders to crawl a link or not.
To tell the spiders to crawl a link, you don’t have to do anything. Simply using the format shown above, the search engine spiders will crawl the link provided.
To tell the spiders to NOT crawl a link, you need to add the following code to the HTML code above:
It would then look like:
Basically, there is no true “dofollow”, it is just NOT using the “nofollow” tag. Pretty simple, eh?
Why does this matter?
When you are using different methods in order to build links on other websites (to increase your search engine rankings), you need to determine if the websites you are attempting to get your site listed on use the “nofollow” tag or not. If they do, it may still be a good idea to try to get that link there, but it is generally regarded as not the best use of time since the search engines don’t follow that link and you don’t get any increase in search engine rankings from that link.
So, when you are looking for sites and blogs that you could leave your link on (through reciprocal links, commenting on a blog, directory submissions, buying links, etc) figure out if the links in the particular section of the site you are aiming for uses “nofollow” or not.
Why wouldn’t I want the search engine spiders to see all of the links on my site? (Or, Why would I use “nofollow”?)
There are many reasons you would want to use the “nofollow” tag, such as:
Another information about Nofollow:
nofollow is an HTML attribute value used 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.
The concept for the specification of the attribute value nofollow was designed by Google’s head of webspam team Matt Cutts and Jason Shellen from Blogger.com in 2005. The specification for nofollow is copyrighted 2005-2007 by the authors and subject to a royalty free patent policy, e.g. per the W3C Patent Policy 20040205, and IETF RFC 3667 & RFC 3668. The authors intend to submit this specification to a standards body with a liberal copyright/licensing policy such as the GMPG, IETF, and/or W3C.
The nofollow attribute value is not meant for blocking access to content, or for preventing content to be indexed by search engines. The proper methods for blocking search engine spiders to access content on a website or for preventing them to include the content of a page in their index are the Robots Exclusion Standard (robots.txt) for blocking access and on-page Meta Elements that are designed to specify on an individual page level what a search engine spider should or should not do with the content of the crawled page.
MediaWiki software, which powers Wikipedia, was equipped with nofollow support soon after initial announcement in 2005. The option was enabled on most Wikipedias. One of the prominent exceptions was the English Wikipedia. Initially, after a discussion, it was decided not to use rel=”nofollow” in articles and to use a URL blacklist instead. In this way, English Wikipedia contributed to the scores of the pages it linked to, and expected editors to link to relevant pages.
In May 2006, a patch to MediaWiki software allowed to enable nofollow selectively in namespaces. This functionality was used on pages that are not considered to be part of the actual encyclopedia, such as discussion pages and resources for editors. Following increasing spam problems and a within-Foundation order from Jimmy Wales, rel=”nofollow” was added to article-space links in January 2007. However, the various interwiki templates and shortcuts that link to other Wikimedia Foundation projects and many external wikis such as Wikia are not affected by this policy.
Other websites like Slashdot, with high user participation, use improvised nofollow implementations like adding rel=”nofollow” only for potentially misbehaving users. Potential spammers posing as users can be determined through various heuristics like age of registered account and other factors. Slashdot also uses the poster’s karma as a determinant in attaching a nofollow tag to user submitted links.
Social bookmarking and photo sharing websites that use the rel=”nofollow” tag for their outgoing links include YouTube; websites that don’t use the rel=”nofollow” tag include Digg.com, Furl, Propeller.com (formerly Netscape.com), Yahoo! My Web 2.0, and Technorati Favs.
Search engines have attempted to repurpose the nofollow attribute for something different. Google began suggesting the use of nofollow also as a machine-readable disclosure for paid links, so that these links do not get credit in search engines’ results.
The growth of the link buying economy, where companies’ entire business models are based on paid links that affect search engine rankings, caused the debate about the use of nofollow in combination with paid links to move into the center of attention of the search engines, who started to take active steps against link buyers and sellers. This triggered a very strong response from web masters.
Sourced from inlineseo.com & wikipedia.org.