What is domain authority?
Domain authority is a score that estimates how strong a website is in search, based largely on the quantity and quality of backlinks pointing to it. A higher authority generally correlates with an easier time ranking. This checker reports a 0–100 authority score plus the underlying domain rank (0–1000), total backlinks, referring domains and a spam score — all from a live backlink index, not a stale cache.
How to use it
- Enter any domain (yours or a competitor's).
- Read the authority score alongside referring domains — the count of unique linking sites matters more than raw backlink volume.
- Watch the spam score: a high value signals toxic links that can hold a site back.