dnb.com
In short: Dun & Bradstreet (dnb.com) accepts d-u-n-s profile claim and business listing. It is free + paid tier to submit, takes only a few minutes, and scores 65/100 on our impact ranking (useful).
Claim or update your tool’s legal business record, website, address, phone, industry, and ownership details.
Free manager eligibility is limited to qualifying US-based non-public companies; use the regional D&B process elsewhere.
Priority is medium, which sets the band. It is free + paid tier and quick to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.