Niche Authority
The degree to which a site is recognized, by search engines and readers alike, as a credible, focused source within a specific topic area.
Niche authority describes how strongly a domain is associated with a specific topic, rather than how much traffic it receives overall. A site with narrow but deep coverage of one subject often carries more niche authority — and more acquisition value — than a broader site with scattered, unfocused content.
Exact-match or highly descriptive domain names can carry an immediate authority signal even before content exists, which is why some pre-revenue domains are priced on niche authority potential rather than current performance.