Dofollow is the common name for a standard Internet link. There is no separate dofollow attribute in the HTML code. A link is considered regular if it is not marked with nofollow, sponsored or ugc, among others.
Importance for SEO
Search engines can use such a link to discover the target page and evaluate its relationship to other sites. A link does not guarantee an increase in position, because the quality of the source, topic, context and naturalness of the link profile also count.
In internal linking, standard links help robots find important content and understand the structure of the website. Links sponsored or added by users should receive appropriate marking consistent with their nature.