The attribute rel = ”nofollow” is a tag used in the HTML code of a web page, used to tell search engine robots not to follow the outbound link originated in the web page or in the site as a whole.
Spiders or crawlers from Google and other search engines use links to navigate through a website to determine trustworthiness.
In the past, users and websites attacked other websites with spam links that undermined the website's authority and lowered SERPs' ranking, which meant less website traffic. This was a problem.
Implementing the nofollow tag allowed a website to maintain its ranking even if it received spammy links.
The great importance of nofollow links in SEO lies in their objective of reducing the effectiveness of certain types of spam, which would improve the quality of the results in search engines, which will indicate that they should not be used to influence the ranking of the URL where said link leads.
Having said the above, it should be taken into account that although the Nofollow does not transmit authority to the destination domain, they are useful in helping gain traffic and make our link profile look more natural. These factors also give their input and boost to SEO.
One of the actions penalized by the most important search engines is being linked to websites known to send spam or scam sites.
When writing sponsored posts, it is listed by search engines as a paid link, and there is a possibility of being removed from search engine results pages.
By using the Nofollow tag on your links, you can still have sponsored links.
Google's statements clearly state that when a link is paid, it should not be "passed the page rank," that is, it cannot and should not be used to increase the sponsored site's authority.
There are two possible ways to add a link to a sponsor if you follow these guidelines:
Add a rel = ”nofollow” attribute to the <a> tag.</a>
Change the links to an intermediate page and block it with a robots.txt file.
For paid links, a link to the text is added as usual:
<a href="http://www.SiteSponsoring.com"> Sponsoring Text </a>
It switches to HTML view.
The NoFollow tag is inserted by changing the link like this:
<a rel="nofollow" href="http://www.justanexample.com"> Sponsoring Link </a>
NoFollow tags have to be added to your links, or they could be banned by search engines or lower in results. If search engine traffic is not very important, this does not apply to this case.
However, for people who make a living from blogging, not using the NoFollow tag will seriously stunt long-term growth. Don't be content with small quick wins that will create problems in the end. Adding NoFollow tags is not that difficult, and the time and effort invested will be worth it.
All websites should use nofollow links on the following different occasions: