In Plain English
It is like one company’s forecast model: useful for observations within that model, but not the weather system itself.
Why it matters
Understanding domain authority helps you make clearer SEO decisions without mistaking one signal or metric for the whole picture.
Example
An SEO team tracks a third-party authority score alongside link quality and organic performance, while documenting that the score is an estimate.
Common misunderstanding
Google does not use Moz Domain Authority as a ranking factor. Avoid treating a vendor score as proof of trust, quality or future performance.