Understanding Page Authority
Page Authority (PA) is a score developed by Moz that predicts how well a specific page will rank in search engine results. Unlike Domain Authority which measures entire domains, PA focuses on individual page strength. PA is calculated using a machine learning model that evaluates link equity, referring domain quality, on-page optimization signals, and the overall backlink profile pointing to that specific URL.
How PA Works
Scoring methodology.
Score Range
0 to 100 scale:
- Higher is better
- Logarithmic scale
- Comparative metric
- Relative measure
Calculation Factors
What influences PA:
- Links to the page
- Link quality
- Content factors
- Page-level signals
PA vs Domain Authority
Key differences.
Scope
What each measures:
- DA: entire domain
- PA: specific page
- Different use cases
- Complementary metrics
Application
When to use each:
- PA for page comparison
- DA for site comparison
- PA for content decisions
- DA for overall strength
Improving Page Authority
How to increase PA.
Build Page Links
Direct links to the specific page through targeted outreach:
- Quality backlinks from high-authority referring domains
- Topically relevant sources and editorial placements
- Strategic internal linking from high-PA hub pages
- Content promotion via digital PR and social amplification
Content Quality
Strong content foundation:
- Comprehensive coverage
- User value
- Engagement signals
- Regular updates
On-Page Optimization
Page-level SEO:
- Keyword optimization
- Meta elements
- Structure
- Technical health
Using PA Effectively
Practical applications.
Content Prioritization
Focus efforts:
- Low PA opportunities
- High PA assets
- Improvement potential
- Resource allocation
Competitive Analysis
Compare pages:
- Your pages vs competitors
- Gap identification
- Opportunity assessment
- Strategy development
Page Authority helps you understand and improve the ranking potential of individual pages on your website. When combined with competitive SERP analysis, anchor text diversity assessments, and content depth optimization, PA becomes a practical lens for prioritizing link building and on-page improvements across your content portfolio.
Key Takeaways
- This guides article shares hands-on strategies for SEO pros, marketing directors, and business owners. Use them to improve organic search and AI visibility across Google, ChatGPT, Perplexity, and other platforms.
- The methods here follow Google E-E-A-T guidelines, Core Web Vitals standards, and GEO best practices for 2026 and beyond.
- Companies that pair technical SEO with strong content, authority link building, and structured data see lasting organic growth. This growth becomes measurable revenue over time.
About the Author: Jason Langella is Founder & Chairman at SEO Agency USA, delivering enterprise SEO and AI visibility strategies for market-leading organizations.