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Domain Authority Checker

Open PageRank score (0–10) for any domain — free, no login.

Domain Authority
Open PageRank score (0–10) powered by openpagerank.com

100% free · No login · Scores updated monthly

How Domain Authority Works

Domain Authority (DA) is a predictive metric that estimates how likely a domain is to rank in search engines, based on the strength and quantity of its backlink profile. This tool uses Open PageRank — a free, transparent alternative to Moz DA — powered by a monthly crawl of the web's link graph.

A score of 0 means the domain has no measured authority (new or unindexed). A score of 10 is reserved for the most authoritative domains on the internet. Most good commercial domains score between 2 and 6.

Bookmark or share checks with /tools/da.php?domain=example.com.

Frequently Asked Questions

What is Domain Authority?

Domain Authority (DA) is a score from 0 to 10 that predicts how well a domain will rank on search engines based on its backlink profile. A higher score indicates stronger authority and greater ranking potential.

How is the DA score calculated?

This tool uses the Open PageRank API, which measures a domain's authority based on the quantity and quality of links pointing to it — similar to Google's original PageRank algorithm.

What is a good Domain Authority score?

Scores of 7–10 indicate high-authority domains (established brands, major publications). Scores of 4–6 are moderate. Scores of 0–3 are typical for newer or smaller sites.

How often is the score updated?

Open PageRank scores are updated monthly. The score reflects the most recent crawl data available.