Moz is an SEO software company that provides tools for keyword research, rank tracking, site audits, and backlink analysis. It is best known for metrics such as Domain Authority (DA) and Page Authority (PA), which are widely used to estimate the strength of a website or page.
Domain Authority (DA) is a metric developed by Moz that estimates the ranking strength of a domain on a scale from 1 to 100. It is based on the quality and quantity of backlinks pointing to the website. A higher Domain Authority usually indicates a stronger backlink profile, but it does not guarantee better rankings or more organic traffic.
View definitionPage Authority (PA) is a metric developed by Moz that estimates the ranking strength of a specific page on a scale from 1 to 100. It is based mainly on the number and quality of backlinks pointing to that page. A higher Page Authority usually means the page has stronger link authority.
View definitionSpam Score is a metric developed by Moz that estimates whether a website shares characteristics commonly associated with spam. It is widely considered one of the least reliable SEO metrics because legitimate websites can also receive high scores. A Spam Score should never be used on its own to determine domain quality. Domain quality should always be evaluated using the actual backlink profile, historical content, and overall relevance.
View definitionDefinitions of the most important terms used across the domain industry.