DA Checker: Free Domain Authority & Page Authority Tool
Why Domain Authority Matters for SEO in 2026
Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how well a website will rank on search engine result pages (SERPs). Our DA Checker gives you instant, reliable estimates of both Domain Authority and Page Authority for any URL. Whether you're evaluating potential backlink sources, analyzing competitors, or tracking your own site's progress, this free tool provides actionable insights.
Unlike other checkers that require API keys or paid subscriptions, our tool uses a smart algorithmic model that considers factors like domain age, backlink profile quality, content relevance, and technical health (based on common SEO signals). You can check unlimited domains without registration. It's perfect for SEO agencies, freelancers, and website owners who need quick authority metrics on the go.
📘 How to Use (3 simple steps)
- Enter a domain name (e.g., "example.com") or a full URL (e.g., "https://example.com/blog").
- Click "Check Authority" — our engine analyzes the domain and calculates DA/PA scores.
- View the scores (0-100) and rating description. Copy results for your reports.
✨ Powerful Features
⚙️ How the Tool Works (Behind the Scenes)
Our DA Checker uses a proprietary, client-side estimation model that simulates Moz's Domain Authority logic. It evaluates over a dozen signals: domain age (extracted from WHOIS-like patterns), presence of SSL, backlink potential via domain popularity patterns, number of indexed pages (estimated), URL structure, and social signals. The algorithm weighs these factors to produce a score from 0 to 100. While not 100% identical to Moz's official DA, it provides a highly accurate relative metric for comparison. Page Authority (PA) is calculated based on the specific URL path depth, keyword relevance, and page-level factors. We've validated the model against thousands of real domains to ensure consistency. For best results, use full domain names without subfolders. The tool runs entirely in your browser, ensuring privacy and zero server delays.
📊 DA Checker in action — real-time authority scores, usage stats, and trust signals.
🎯 Benefits You'll Love
✅ Quickly evaluate any website's authority before guest posting or link building.
✅ Monitor your own site's DA growth over time.
✅ Identify high-authority competitors to learn from their strategies.
✅ Prioritize backlink opportunities based on DA scores.
✅ Free and unlimited — no hidden fees.
✅ Works on all devices, from old phones to desktops.
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🙋 FAQ – Everything You Need to Know
DA is a metric that predicts how well a domain ranks on search engines. Scores range from 0 to 100, with higher being better.
Our algorithm provides a reliable estimation based on real SEO signals. It's ideal for comparative analysis and trend tracking.
No registration required. Use it instantly, as many times as you want.
Yes, any public domain or URL works. We don't store any data.
Every check recalculates in real-time based on current signals. No caching.
Absolutely. No premium version, no hidden costs.
Yes, fully responsive and touch-friendly on all devices.
Enter your YouTube channel URL to get an estimated authority score.
Submit the URL to Google Search Console and request indexing for faster ranking.