About domainrating.org
A free, reproducible measure of domain authority: public data in, a published formula, and a number anyone can check.
What this site is
domainrating.org publishes the Open Authority Rating (OAR): a free 0–100 score of a domain’s position in the public web graph, computed from Common Crawl’s openly downloadable link data with a published, versioned formula.
The goal is a reference metric that doesn’t ask for trust: the same inputs and the same formula produce the same number, whoever runs the computation.
Who runs it
domainrating.org is operated by Dream Ops B.V., a company based in Edam, The Netherlands. Full legal details are on the imprint page; the fastest way to reach us is the contact page.
Principles
- Open data, open method: the data source, the formula, and the weights are published, and every score can be recomputed from Common Crawl’s public files.
- Honest gaps: when a domain can’t be proven present in a release, the score is null — never an estimate.
- Nothing is for sale: scores are never adjusted manually and cannot be bought, boosted, or influenced.
- Independent: not affiliated with, endorsed by, or connected to Ahrefs, Moz, or Common Crawl.
How it sustains itself
The service is free to use. There are no ads, no third-party trackers, and no resale of data; it runs on deliberately small infrastructure paid for by its operator.
Where to go next
Start with the methodology for how the score is computed, the data page for what it is computed from, the changelog for what has changed, and the FAQ for common questions.