Domain Rating explained, and what it does not tell you
Your DR is some number and you cannot tell whether it means anything about your chances.
What it is
A logarithmic score, invented by a tool vendor and not by any search engine, summarising the quantity and strength of sites linking to yours. It correlates loosely with ranking ability because links correlate with ranking ability. It is not an input to any search algorithm.
Why it moves fast at the bottom
The scale is logarithmic, so the first twenty points are cheap and the next twenty are not. A weekend of directory submissions can take a new site from 0 to the low twenties, which feels like progress and changes almost nothing about what you rank for.
The number that matters instead
Your position on your own top queries. That is measurable, it is yours, and it is directly connected to traffic. If you can quote your DR but not your position on the query you care about, you are tracking the wrong thing.
What DR is, precisely
A third-party score, on a logarithmic scale from 0 to 100, estimating the strength of your backlink profile relative to every other site the vendor has crawled. Google does not use it, does not see it, and has no equivalent it publishes. It is a useful comparative instrument and a terrible target.
What DR does not tell you
It says nothing about whether the links are relevant, whether they send traffic, or whether the pages carrying them are ever crawled. This site sits at 22 with 122 linking sites, of which 61% pass link equity at all. Two sites at the same DR can have completely different real-world outcomes, which is the strongest argument against optimising for the number.
Measured, not asserted
This site sits at DR 22 from 122 linking sites. A competitor with a Domain Rating of 1.5 and a thinner page outranks it on a shared query, which is the clearest available demonstration that the score is not the mechanism.
Free tool for this: SERP Audit. No account, nothing uploaded.
Where this goes deeper
Every number on this page comes from one complete dataset: one product taken from zero to 100K+ users on search alone, with nothing spent on advertising. The full argument is Chapter 25 of the book. Five chapters are free to read.