Page Authority
Page Authority (PA) is a metric developed by Moz that predicts the strength of an individual webpage on a scale of 1-100. Unlike DA Value, which evaluates the entire domain, Page Authority focuses exclusively on the authority of a specific page.
The metric is based on Google's PageRank algorithm and considers various factors such as:
- Number and quality of incoming links
- Link text (anchor text)
- Relevance of linking pages
- Age of links
- Diversity of link sources
How is Page Authority calculated?
Page Authority is calculated through a machine learning algorithm trained on millions of pages. The algorithm analyzes:
Page Authority vs. Domain Authority
While Domain Authority measures the overall strength of a domain, Page Authority focuses on individual pages:
- Page Authority: Evaluates a specific URL
- Domain Authority: Evaluates the entire domain
- Calculation: PA is more independent of domain strength
- Application: PA helps in evaluating individual content pieces
Importance for SEO
Page Authority is an important indicator for the Position potential of a page because it:
- Measures link strength: Higher PA means more and better backlinks
- Ranking prediction: Correlates strongly with better SERP positions
- Content evaluation: Helps in prioritizing pages
- Competitor analysis: Enables comparison with competitors
Optimizing Page Authority
1. Improve internal linking
- Link from hub pages: Link from high-quality internal pages
- Optimize anchor text: Use relevant, descriptive anchor texts
- Contextual links: Natural linking within content
2. Build external backlinks
- Quality over quantity: Few high-quality links are better
- Relevant sources: Links from thematically matching pages
- Diversity: Links from different domains and IP addresses
- Natural distribution: Avoid link spam patterns
3. Improve content quality
- E-E-A-T principle: Experience, Expertise, Authoritativeness, Trustworthiness
- Depth and relevance: Comprehensive, valuable content
- Regular updates: Fresh content signals relevance
- User engagement: High dwell time and low bounce rate
Measuring Page Authority
Moz Tools
- Moz Link Explorer: Detailed PA analysis
- MozBar: Browser extension for quick checks
- Moz Pro: Comprehensive SEO analysis
Alternative Tools
- Ahrefs: Domain Rating as alternative
- SEMrush: Authority Score
- Majestic: Trust Flow and Citation Flow
Avoiding Common Mistakes
Warning: Page Authority cannot be directly manipulated - only improved through genuine SEO measures
1. Avoid link spam
- No purchased links: Violates Google guidelines
- Natural distribution: Avoid link farms
- Control quality: Only from trustworthy sources
2. Over-Optimization
- Anchor text diversity: Not just keyword anchor texts
- Link velocity: No sudden link spikes
- Natural growth: Continuous, organic development
3. Neglecting fundamentals
- Technical SEO: Fast loading times, mobile optimization
- Content quality: High-quality, relevant content
- User experience: Intuitive navigation and design
Page Authority in Practice
Content Strategy
- Identify high-PA pages: Find existing strong pages
- Build content clusters: Group thematically related content
- Distribute link equity: Link strong pages with weaker ones
- Promote new content: Link from established pages to new content
Competitor Analysis
- PA comparison: Compare own pages with competitors
- Link gap analysis: Find missing backlink opportunities
- Content gaps: Identify topics that competitors cover
Observation and Tracking
Important KPIs
Tools for Monitoring
- Google Search Console: Organic traffic and rankings
- Moz Pro: PA tracking and backlink monitoring
- Ahrefs: Comprehensive SEO analysis
- Screaming Frog: Technical SEO monitoring
Future of Page Authority
With the evolution of Google's algorithms and the increasing importance of user experience, Page Authority will remain relevant, but:
- E-A-T focus: Expertise, Authoritativeness and Trustworthiness gain importance
- Content quality: High-quality content becomes more important than pure link metrics
- User signals: Engagement metrics flow more strongly into the evaluation
- AI integration: Machine learning improves prediction accuracy