Domain Authority Checker
Check the authority and PageRank score of any domain. Get insights into a website's backlink profile strength and global ranking.
Understanding Domain Authority
Domain authority metrics help assess the overall strength and credibility of a website based on its backlink profile. This tool uses Open PageRank , a free alternative to proprietary metrics like Moz DA or Ahrefs DR.
What is PageRank?
PageRank was Google's original algorithm for ranking web pages based on their backlink profile. While Google no longer publicly shares PageRank scores, Open PageRank recreates this metric using data from Common Crawl, the largest open web crawl dataset.
How is it Calculated?
Open PageRank analyzes billions of pages from Common Crawl to calculate authority scores. The algorithm considers the quantity and quality of backlinks pointing to a domain, with links from high-authority sites carrying more weight.
Score Interpretation
PageRank scores range from 0 to 10, but most websites fall between 0-3. Only extremely popular sites like Google, Wikipedia, and Facebook achieve scores of 8+. A score of 3-4 is considered good for a business website.
Use Cases
Domain authority metrics are useful for evaluating potential backlink sources, competitor analysis, tracking your site's authority growth over time, and assessing the quality of domains for acquisition or partnerships.
Open PageRank vs. Proprietary Metrics
Unlike Moz's Domain Authority or Ahrefs' Domain Rating, Open PageRank is free and transparent. While proprietary tools may have more frequent updates and additional features, Open PageRank provides a solid baseline for authority assessment.
Grade Breakdown:
- A (7-10) - Excellent authority
- B (5-6) - Good authority
- C (3-4) - Moderate authority
- D (1-2) - Low authority
- F (0) - Minimal authority
Data Source: This tool uses Open PageRank , a free PageRank-like metric calculated from the Common Crawl dataset—the largest publicly available web crawl with billions of pages.
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