Moz Rank Checker
Check Domain Authority (DA), Page Authority (PA), and Spam Score instantly. Analyze your website's SEO strength with precision.
What is Domain Authority (DA)?
Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how likely a website is to rank on search engine result pages (SERPs). A Domain Authority score ranges from one to 100, with higher scores corresponding to a greater ability to rank.
Understanding the DA Scale
Because DA is based on a logarithmic scale, it is significantly easier to grow your score from 20 to 30 than it is to grow from 70 to 80.
- 0 - 20: New websites or small local businesses.
- 20 - 40: Average performing sites with moderate backlinks.
- 40 - 60: Good authority, often established blogs or businesses.
- 60 - 80: High authority, major industry players.
- 80 - 100: Internet giants (Google, Wikipedia, Facebook).
Page Authority (PA) vs. Domain Authority (DA)
While Domain Authority measures the predictive ranking strength of entire domains or subdomains, Page Authority (PA) measures the strength of individual pages. It is common for a specific high-value article on a site to have a higher PA than the site's overall DA, or vice versa depending on the link profile.
What is Spam Score?
Spam Score represents the percentage of sites with similar features to the site you are analyzing that Moz has found to be penalized or banned by Google. A score of 1-30% is considered low risk, 31-60% is medium risk, and 61-100% is high risk. A high Spam Score doesn't necessarily mean your site is spammy, but it's a warning sign to investigate your backlink profile.
Disclaimer: This tool utilizes a deterministic simulation algorithm to generate the SEO metrics (DA, PA, Spam Score) shown above. Due to browser security restrictions (CORS) and the requirement for paid API keys, client-side tools cannot directly query Moz's live database. The data presented here mimics realistic scoring logic based on the domain input for demonstration purposes.