Domain Authority Score Calculator
SEO Metrics Input
Results
Know Your SEO Power.
Domain Authority Score Calculator
That Reveals Site Strength.
Domain Authority predicts how well your site will rank. Our calculator estimates DA based on backlinks, referring domains, link quality, and site age—helping you benchmark against competitors.
What is the Domain Authority Score Calculator?
Domain Authority (DA) is the most widely used metric for predicting search ranking potential—yet most SEOs can't calculate it manually. Our tool estimates DA based on backlink profile: total backlinks, referring domains, link quality (follow/no-follow ratio), domain age, and link diversity.
Stop wondering how your site stacks up. SEOScaleUp's calculator helps you benchmark against competitors, identify link-building opportunities, and track DA improvement over time.
Benchmark site strength
Prioritize outreach targets
Everything you need to master domain authority
From backlink analysis to DA improvement strategies — complete authority toolkit.
Calculate Domain Authority in 4 easy steps
No complex metrics. Just clear authority insights.
Enter Domain
Or paste backlink data
Add Backlink Metrics
Total backlinks, referring domains
Set Domain Age
Years since domain registration
Get DA Score
Plus competitor comparison
Stop guessing your site's SEO strength
Domain Authority predicts ranking potential—track it like a KPI.
Targeted link building moves the needle.
Identify DA gaps and prioritize link acquisition.
Show DA improvement over time.
Domain authority insights for every SEO role
SEO Managers
- ✓ Track DA as primary SEO health metric
- ✓ Set quarterly DA improvement targets
- ✓ Benchmark against top 10 competitors
- ✓ Identify link-building ROI
- ✓ Report authority growth to leadership
Link Builders & Outreach Specialists
- ✓ Prioritize high-DA domains for backlinks
- ✓ Assess link quality before outreach
- ✓ Track DA growth from acquired links
- ✓ Set monthly link acquisition goals
- ✓ Identify domains that will boost DA most
SEO Agencies
- ✓ Report DA improvement to clients
- ✓ Benchmark client vs industry averages
- ✓ Justify link-building campaigns with DA projections
- ✓ Track client authority over contract periods
- ✓ Set performance-based pricing on DA milestones
Business Owners
- ✓ Understand if your domain is competitive
- ✓ Evaluate if SEO investment is working
- ✓ Compare your site against industry leaders
- ✓ Decide if link building is worth the cost
- ✓ Track SEO progress month over month
Free, accurate, and actionable domain authority insights
5M+ Domains
Trusted by SEO professionals worldwide.
8 Authority Factors
Backlinks, referring domains, quality, age, diversity.
100% Free Forever
No signup, no credit card, no limits.
SEOScaleUp vs. spreadsheets & premium tools
Domain authority FAQs
Domain Authority is a search engine ranking score that predicts how well a website will rank on search engines. Scores range from 1 to 100—higher scores indicate greater ranking ability. It's calculated using multiple factors including total backlinks, referring domains, link quality, domain age, and trust flow.
0-20: New or low-authority site. 20-40: Average small business. 40-60: Good authority, competitive in niche. 60-80: Strong authority, ranks well. 80-100: Elite authority (Wikipedia, Amazon, NYTimes). Most small businesses should target 30-50 DA to compete in local or niche markets.
1) Acquire high-quality backlinks from authoritative sites. 2) Increase referring domains (unique sites linking to you). 3) Improve internal linking structure. 4) Remove toxic/spam backlinks. 5) Publish link-worthy content. 6) Build brand mentions. Our DA Improvement Simulator shows the impact of link acquisition.
It varies by niche. Typical DA 50 requires: 500-2,000 total backlinks, 100-300 referring domains, quality ratio of 70%+ dofollow, and domain age 3+ years. Quality matters more than quantity—10 links from DA 70+ sites are better than 1,000 low-quality directory links.
Yes. Older domains with consistent link growth have higher DA. A 10-year-old domain with steady backlink acquisition will outrank a 1-year-old domain with similar backlinks. Our calculator factors domain age into DA estimation—newer sites need more links to compete.
Our algorithm correlates with industry standards (Moz DA, Ahrefs DR, SEMrush Authority) within ±5 points for 85% of domains. Accuracy depends on input data quality. For most SEO use cases, this provides reliable benchmarking and trend tracking.
100% free forever. No premium tiers, no subscription, no credit card required. Analyze unlimited domains, track DA over time, and export reports at no cost.
DA updates weekly as new backlinks are discovered. We recommend checking DA monthly to measure long-term progress. Don't obsess over week-to-week fluctuations—focus on quarterly trends and link-building volume.
🚀 SEOScaleUp Tools
All-in-one SEO toolkit to scale your rankings