Link Building
Nofollow Tag
The nofollow attribute (rel="nofollow") is an HTML link attribute introduced by Google in 2005 to signal that a hyperlink should not pass PageRank (link equity) to the destination URL. It was originally designed to combat comment spam. In 2019, Google updated its treatment, using nofollow as a "hint" rather than a strict directive, alongside two new attributes: rel="sponsored" and rel="ugc."
Nofollow link distribution in a backlink profile is analyzed using Ahrefs' Site Explorer (which segments dofollow vs. nofollow links), SEMrush's Backlink Analytics, and Moz Link Explorer. Monitoring nofollow ratios helps maintain a natural link profile and ensures that high-value placement links are dofollow.
Authority Links
Related Terms
Link Building
Backlink
An inbound hyperlink from one website to another — historically the strongest single ranking signal in Google's algorithm, treated as a vote of confidence in the linked page's authority.
Link Building
Dofollow Link
When an external link from a website is marked as "dofollow", it means that the origin site passes its authority to the destination site and Google knows about it.
Link Building
Link Juice
Link juice is the ranking potential distributed among the relevant pages or websites through hyperlinks.
Link Building
Sponsored Tag
The "sponsored tag" is used for hyperlinks that are advertisements, sponsored, or paid placements.