The RankZoa Domain Authority Checker is a free online SEO tool designed to analyze the overall authority and ranking potential of any website. Powered by industry-standard metrics, this tool calculates a website's Domain Authority (DA) and Page Authority (PA), helping you evaluate your site's search engine strength and compare it directly against your top competitors.
Whether you are planning a link-building campaign, auditing guest post prospects, or analyzing competitors, our tool provides the critical data you need. Best of all, you can check up to 20 domains simultaneously, making bulk analysis fast and efficient.
Key Features of the Domain Authority Checker
Bulk Analysis: Analyze up to 20 URLs at the same time to save time
Moz Domain Authority (DA): Predicts how well a website will rank on search engines on a scale from 1 to 100
Moz Page Authority (PA): Measures the ranking strength of a specific page rather than the whole domain
Spam Score: Identifies potential risk factors and low-quality link profiles
Backlink Count: Instantly check the number of external links pointing to the domain
One-Click Export: Download your bulk results in CSV format for deeper analysis
How to Use the Bulk DA Checker
Enter up to 20 URLs in the input box above (place each URL on a new line)
Click the "Check Authority" button
Review the detailed table showing DA, PA, Spam Score, and total backlinks for each site
Click "Export to CSV" to save the data for your SEO reports
Understanding DA, PA, and Spam Score
To get the most out of your analysis, here is how to interpret the key metrics:
Domain Authority (DA): Logarithmic score indicating the authority of the root domain. Scores between 40-50 are average, 50-60 are good, and 60+ are excellent. Brand new sites start at 1.
Page Authority (PA): Similar to DA, but focuses specifically on the strength of the exact URL entered. A homepage usually has higher PA than internal blog posts.
Spam Score: Expressed as a percentage (1% to 100%). A higher spam score indicates that the site has a high ratio of low-quality backlinks, which could lead to search engine penalties. Aim for link partners with a Spam Score under 10%.
How to Improve Your Domain Authority
Domain Authority is not a metric you can change overnight. It requires a long-term SEO strategy focused on quality. To increase your DA:
Acquire High-Quality Backlinks: Focus on earning links from authoritative, relevant websites in your niche rather than low-cost link directories.
Create Linkable Content: Write deep-dive guides, publish original research, or build useful tools (like this one) that others naturally want to link to.
Audit and Disavow Spam: Regularly monitor your backlink profile and disavow spammy links that could drive up your Spam Score.
Optimize Internal Linking: Distribute link equity throughout your site by linking from high-authority pages (like your homepage) to your deeper content.
