Domain Authority Checker, See Any Site's Link Strength
Enter up to 5 domains and get each one's link-based authority score on a 0 to 1000 scale, with a tier label and side-by-side comparison built from live referring-domain data.
What a Link-Based Authority Score Actually Tells You
Authority scores compress an entire backlink profile into a single number. Under the hood, the model looks at how many unique domains link to a site, how authoritative those linking domains are themselves, and how the link equity flows through that network, an approach descended from the original PageRank idea that a link is a vote, and votes from trusted voters count more. The DataForSEO Domain Rank used by this tool runs on a 0 to 1000 scale, where most small business sites sit under 100, established niche publishers land in the hundreds, and only heavily cited global platforms approach the top of the range.
It is critical to understand what the score is not. Google does not use Moz DA, Ahrefs DR, or any third-party authority number in ranking, and Google representatives have stated they do not compute a single site-wide authority score at all. The metric's real value is comparative, it predicts, roughly, how easily a domain can rank new content against competitors. If every site on page one of your target SERP scores 400 and you score 60, you will likely need either far superior content targeting lower-competition queries, or a sustained link acquisition effort, before you can compete head on.
Why DR, DA, and Domain Rank Never Agree, and How to Grow All of Them
Each toolmaker crawls the web independently and scores it with a proprietary formula, so the same site can show DA 35 in Moz, DR 52 in Ahrefs, and 180 here. Index coverage differs, Ahrefs and Majestic run some of the largest link crawlers outside Google, while smaller indexes may miss links the big crawlers found. Scales differ too, most 0 to 100 scores are logarithmic, meaning climbing from 70 to 80 requires exponentially more link equity than climbing from 20 to 30, whereas a 0 to 1000 scale spreads the same distribution across more resolution. The only sound methodology is to pick one metric, benchmark all competitors with it, and track direction over time.
Growing authority comes down to earning links from new, reputable referring domains, since almost every formula weights unique linking domains above raw link counts. Digital PR is the most scalable engine, publish original research, surveys, or data studies that journalists want to cite. Linkable assets come next, free tools, calculators, glossaries, and definitive guides attract passive links for years after launch. Round it out with unlinked mention reclamation, asking sites that already name your brand to add a link, and strategic guest contributions on genuinely relevant industry publications. Avoid buying links from link farms, those inflate counts while adding spam signals that separate tools now measure explicitly.