A nofollow link is any hyperlink with the rel="nofollow" attribute. It instructs search engine crawlers not to pass any link juice or authority from the linking page to the linked page. However, the primary purpose of the "nofollow" attribute is to combat spam and manipulation of search engine rankings. This indicates a natural backlink profile and helps increase your do-follow links and more exposure on search engines.
Now you might be thinking what is a dofollow link? It is a "follow" link. It's a standard hyperlink on a web page that allows search engine bots to follow or crawl the link and pass authority or link equity from the source page to the linked page.
The key difference between do-follow and no-follow links lies in how they affect search engine rankings and the flow of link equity. Dofollow links pass authority, while nofollow links do not. But, when it comes to SEO-friendly site architecture, nofollow links also can be a valuable tool.
Overall, nofollow links can be valuable for maintaining a healthy backlink profile, controlling the flow of link equity, and avoiding potential SEO pitfalls. It allows you to maximize the effectiveness of your overall SEO strategy without worrying about potential issues related to link juice passing between sites.