What Is A Nofollow Backlink?

A nofollow link is a link that contains a rel=”nofollow” attribute in its HTML code. This attribute tells search engines not to pass authority from the linking page to the destination page. As such, noffollow links have very little value from the SEO point of view.

The nofollow attribute was introduced in 2005 by Google, Yahoo and MSN in order to fight the comment spam by giving webmasters the option to devalue certain links.

Nofollow vs. dofollow

From the technical point of view, the only difference between a nofollow link and a standard “dofollow” link is the presence of the rel=”nofollow” tag. The practical difference is that nofollow links do not pass the link equity (also known as “link juice”). In other words, if you get a nofollow backlink, the linking page doesn’t pass the authority to your page. It won’t improve your rankings and transfer any PageRank.

When should I use nofollow links?

1. Pages you don’t want to endorse

Sometimes you simply need to link to websites that you don’t want to endorse.

For example, here’s an article by the Variety Magazine reporting on Pornhub releasing a non-adult film. Although all the links in that article are followed, they decided to use a nofollow attribute when linking to PornHub’s annual review.

2. Sponsored links

Buying links is an activity that is strictly prohibited by Google’s guidelines.

So you don’t want to be caught by Google on the receiving end of the link, but neither should you be obviously selling links on your website.

The only way is to use a nofollow attribute on all the sponsored links, more precisely rel=”sponsored” (rel=”nofollow” will work the same way, or you can combine both values like rel=”sponsored nofollow”).

3. Affiliate links

This is very similar to the previous point. Although affiliate links are not “sponsored links” per se, it is best practice to nofollow them.

4. User-generated content

Any time a visitor is able to insert a link on your website (in most cases it’s the comments or forum posts) it should be automatically nofollowed.

Do nofollow links have any SEO value?

There’s always been a lively debate about the possible impact of nofollow links on rankings.

Has a nofollow link from a relevant Forbes article really the same SEO value as a nofollow link from a spammy comment on a random website?

We don’t know. But even if nofollow links pass no link equity at all, there are other indirect benefits they bring.

1) They may serve as a hint for Google

What does it mean?

Well, nobody knows exactly. One of the possible interpretations is that Google may decide to “ignore” the nofollow attribute in some cases. It may be for the ranking purposes or just for crawling and indexing.

But more probably, they’ll just use them internally to help them improve their understanding of links and the content of the linked pages. After all, their official statement is that these hints will be used as “a way to better understand how to appropriately analyze and use links”.

2) They can bring you traffic

Remember the example with a nofollow link from a relevant Forbes article and a nofollow link from a spammy comment?

Even if there was no difference from the “PageRank” point of view, there’s definitely a difference in the traffic potential these two links have.

Even if there’s no SEO benefit, a well-placed nofollow link from a relevant website with many visitors can bring you a lot of valuable traffic. And SEO is all about getting more traffic.

3) They diversify your link profile

A natural link profile will always consist of both dofollow and nofollow backlinks. Having only dofollow links or too many dofollow links can look unnatural.

It doesn’t mean you must actively look for nofollow backlinks or stress about the dofollow/nofollow ratio (unless you actively build links at scale). There’s no ideal number and never was.

How to find out whether the link is nofollow?

There are various ways to do check whether a link is nofollow or follow:

  1. Check the HTML code
  2. Us an extension
  3. Use backlink analysis tools

 

From the SEO point of view, it’s always better to get dofollow links from authoritative websites.

There’s always the option to contact the webmaster and ask whether he could remove the nofollow attribute, especially if there’s no obvious reason to use it.

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