What Does "DA" Stand For in SEO?

In search engine optimization, DA stands for Domain Authority.

Domain Authority is a proprietary search engine ranking score developed by Moz (and mimicked by other third-party tools under names like Domain Rating or Authority Score) that attempts to predict how likely a website is to rank on search engine results pages (SERPs).

Scores range from 1 to 100, with higher scores corresponding to a greater estimated ability to rank.

The Critical Truth: Google Does Not Use Domain Authority

One of the most persistent myths in SEO is that Google calculates an internal "Domain Authority" score and uses it to rank pages.

Domain Authority is not a Google metric. Moz built it as a third-party estimate of ranking strength, and Google has no equivalent internal score by that name or definition — Google has consistently said it evaluates pages individually rather than applying a single site-wide authority number.

Google evaluates:

Page-level relevance and passage extractability for specific search queries.
Topical Authority: Whether your site demonstrates deep, interconnected expertise across a specific subject cluster (see our guide on Topical Authority in SEO).
E-E-A-T signals: Experience, Expertise, Authoritativeness, and Trustworthiness backed by real entities.

Domain Authority vs. First-Party GSC Performance

Metric / Aspect	Third-Party Domain Authority (DA)	First-Party Search Console Performance
Data Source	Third-party web crawlers & backlink indices	Exact user search interactions recorded by Google
Calculation	Logarithmic backlink count calculation	Real clicks, impressions, CTR, and SERP positions
Relevance to Revenue	Indirect proxy metric; easily manipulated	Direct measurement of user demand and pipeline
Actionability	"Increase DA from 32 to 40" (Vague)	"Fix CTR on Position 5 money page" (Concrete)

Clarifying Common Search Variations: "Das SEO", "DA SEO", and "DadSEO"

Because of overlapping abbreviations and language differences, searchers often encounter mixed terms:

"DA SEO" (Domain Authority SEO): Refers to strategies centered on increasing third-party link scores.
"Das SEO" (German for "The SEO"): In German-speaking regions, "Das SEO" is common phrasing for search engine optimization fundamentals.
"DadSEO": The strategic SEO platform and AI skill built on Rumelt’s Strategy Kernel, focused on first-party Search Console diagnostics rather than vanity scores.

If you are evaluating whether to spend your budget chasing third-party domain scores or fixing real performance bottlenecks on your site, read our Strategic SEO Audit Guide and our Semrush Alternative Comparison.