Domain trust score

A domain trust score is any vendor’s own 0 to 100 judgment of whether a domain is trustworthy. There is no standard behind the phrase.

A domain trust score is a vendor's own 0 to 100 judgment of whether a domain can be trusted. There is no standard behind the phrase, and two vendors' scores for the same domain are not comparable.

The name gets used for at least three different things:

  1. A spam or link-quality judgment, such as Moz's Spam Score, which looks at patterns common to penalized sites.
  2. A fraud judgment, such as the scores on consumer safety sites, which mix registration age, hosting country, review sentiment and blocklists.
  3. A sender reputation, which is about email deliverability and has nothing to do with search. See domain reputation vs IP reputation.

What Domduck records

No trust score, and there is no plan to publish one. Every number Domduck stores comes from a named source with a documented meaning, and a trust score is an opinion produced by mixing several of those together with weights nobody publishes.

What is available instead are the inputs, each with its own date: registration age through RDAP, the certificate and who issued it, the DNS records, the popularity rank, and the AI crawler policy. A reader who wants to judge a domain gets the evidence rather than a verdict.

Why it matters

A composite score hides the reason. "Trust 42" cannot be argued with, cannot be reproduced, and changes when the vendor retunes the weights. A registration date and an issuer name can be checked by anyone, and they still mean the same thing in five years.

If you need a verdict for an automated decision, build it from the fields and write down your own weights. Then at least the weights are yours.

Primary source: Moz on Domain Authority, one such judgment