Domain Authority
Domain authority is a search engine ranking score (often scaled 0-100) predicting how well a domain will rank in search results. While not an official Google metric, factors like backlink quality, domain age, and content relevance contribute to perceived authority.
Example
wikipedia.org has a domain authority of 100, while a new .xyz domain might start at 1. Authority builds over years through quality content and backlinks.
Referenced in Guides
Domains & SEO