Page Authority: What It Means and Why It Matters Explained Clearl
Moz's Page Authority score is often conflated with domain-level metrics, yet it predicts a single URL's ranking potential based on its link profile. This 2025 guide cuts through the noise with tool-specific comparisons and actionable strategies that align with Google's evolving quality guidelines rather than chasing vanity scores.
Page Authority score range: 1 to 100 ·
Developer: Moz ·
Good score threshold (commonly cited): 50+
Quick snapshot
- Moz's page-level ranking prediction score (Moz documentation on Page Authority)
- Scale 1–100, based on link profile (Moz technical guide to PA)
- Whether Google uses PA internally (Moz disclaimer on third-party metrics)
- Exact link attribute weightings (SEO consultant Jen Ruhman's analysis)
- 2025 SEO strategies prioritize topical authority over raw scores (Jen Ruhman's 2025 guide)
- Tools diverging with alternative metrics (Semrush Authority Score, Ahrefs DR) (Semrush comparison with Moz metrics)
The table below captures the core facts about Page Authority as defined by its developer.
| Key fact | Value |
|---|---|
| Official developer | Moz |
| Score range | 1–100 (logarithmic scale) |
| Primary data source | Backlink count and quality for specific URL |
| Common good threshold | 50+ (outperforms median pages) |
| Google ranking factor? | No - proprietary estimate only |
What is a Page Authority?
Developed by Moz in 2011, Page Authority (PA) predicts how well a specific URL might rank in search results based on its link profile and related signals. Unlike domain-level metrics, PA zooms in on individual pages—making it particularly valuable for evaluating content pieces or product pages against direct competitors.
Moz explicitly states that PA is a "score developed by Moz that predicts how well a specific web page will rank on search engine result pages (SERP)" (Moz Learn SEO documentation).
Origins of Page Authority
- Created as companion metric to Domain Authority (Moz historical documentation on PA)
- Uses machine learning model updated periodically (Moz algorithm explainer for DA)
How Page Authority Is Calculated
- Logarithmic scale where moving from 20 to 30 is easier than 70 to 80 (Post Affiliate Pro guide to PA)
- Considers link quantity, quality, and anchor text diversity (DEPT Agency analysis on link building)
The implication: PA is a comparative diagnostic tool, not an absolute measure of page quality. Its primary value lies in benchmarking your page against competitors for the same keywords.
What is the difference between Page Authority and Domain Authority?
While both metrics use Moz's 1-100 scale, they serve fundamentally different purposes in SEO strategy. Page Authority evaluates individual URLs, whereas Domain Authority assesses entire domains—a distinction that shapes how professionals use each metric for technical audits and content planning.
Scope: Page vs. Domain
- PA: Predicts ranking potential of single pages like blog posts or product listings (Moz documentation on PA scope)
- DA: Measures overall domain strength for site-wide comparisons (Moz comparison guide for DA)
When to Use Each Metric
- PA for: Content gap analysis, internal linking decisions, competitor page benchmarking
- DA for: Link building target evaluation, domain acquisitions, site-wide health checks
A GeeksforGeeks analysis highlights the core conceptual difference: "Domain Authority estimates the ranking strength and trustworthiness of an entire website, while Page Authority estimates the ranking ability of a single page within that site" (GeeksforGeeks comparison of DA and PA).
SEO teams tracking both metrics see PA as their page-level diagnostic tool while using DA to gauge overall site authority—with topical relevance increasingly trumping both in 2025 strategies.
What is a Good Page Authority Score?
Context determines whether a PA score is strong—a 40 might be competitive in niche medical research but weak for general news. The most practical approach compares your page against current top performers for target keywords.
Scale Interpretation
- 0-20: Very weak link profile, unlikely to rank competitively
- 30-50: Typical range for newer or moderately linked pages
- 50-70: Strong performer in most verticals
- 70+: Elite pages with extensive high-quality backlinks
Benchmarks by Industry
Calculate the average PA of top 5-10 ranking pages for your target keyword (Post Affiliate Pro methodology for benchmarking). For example:
- Local business pages: Often compete with PA 30-45
- Tech tutorials: Typically require 50-65 to rank
- News articles: May need 60+ for competitive terms
Post Affiliate Pro states: "A good Page Authority score is often considered to be above 50, but what is 'good' is relative and best judged against the average PA of the current top-ranking pages for your target keyword" (Post Affiliate Pro definition of good PA).
The pattern: industry-specific benchmarks vary significantly, so absolute thresholds are less useful than relative competitive comparisons.
How to find Page Authority?
Several tools provide PA scores or equivalents, with Moz's Link Explorer offering the canonical measurement. Understanding the differences between platforms helps avoid cross-tool comparison pitfalls.
Using Moz's Free Page Authority Checker
- Link Explorer provides official PA scores (Moz tool documentation for Link Explorer)
- Free tier allows limited checks; paid plans unlock bulk analysis
Alternative Tools (Ahrefs, Semrush)
- Semrush Authority Score: Available at URL level in Backlinks tool (Semrush guide to Authority Score)
- Ahrefs URL Rating: Different algorithm but similar page-level focus
Tool discrepancies mean a page showing PA 60 in Moz might score differently elsewhere—always compare within the same tool's ecosystem for consistency.
Should I focus on DA or DR?
The DA (Moz) vs. DR (Ahrefs) debate often overlooks a crucial third option: prioritizing Page Authority when evaluating specific content performance. For 2025 link builders, the choice depends on whether you're assessing entire sites or individual pages.
DA vs. DR: Key Differences
- DA: Moz's domain-wide metric, best for comparing site authority
- DR: Ahrefs' alternative emphasizing referring domains count
- PA: Page-specific focus missing from this comparison
Which Metric to Use for Link Building
- For guest post targeting: DA/DR to evaluate site-wide strength
- For content updates: PA to identify underperforming pages
- For internal linking: PA to guide authority distribution
Ahrefs provides a free Website Authority Checker for domain-level strength comparisons (Ahrefs tutorial on building domain authority), while Moz's Link Explorer remains the canonical source for PA. The catch: no single tool perfectly maps to another, so stick with one ecosystem for consistent tracking.
Upsides
- PA provides granular page-level insights
- DA/DR useful for high-level site comparisons
Downsides
- No single metric captures topical relevance
- Tool discrepancies create comparison challenges
What this means: SEOs should use PA as a page-level diagnostic tool alongside DA/DR for site-level evaluations, but never rely on any single score in isolation.
"Domain Authority predicts the likelihood of a domain ranking in the search engine result pages (SERPs)."
"Page Authority is a score developed by Moz that predicts how well a specific page will rank on search engine result pages."
Related reading: Backlinks Guide ? Links in Seo
Frequently asked questions
How often is Page Authority updated?
Moz recalculates PA scores periodically (typically monthly) rather than in real-time. Significant link profile changes may take several weeks to reflect in updated scores.
Can Page Authority be manipulated with spammy links?
While low-quality links might temporarily inflate PA, Moz's algorithm penalizes spam patterns. Google may also devalue such links independently of PA scores.
Does a high Page Authority guarantee rankings?
No—PA predicts potential based on link signals, but Google considers hundreds of factors. Pages with lower PA often outrank higher-PA competitors through superior content relevance and user experience.
What is the difference between Page Authority and URL Rating (Ahrefs)?
Ahrefs' URL Rating (UR) uses a 0-100 scale like PA but different calculation methods. UR emphasizes referring domains count more than individual backlinks.
How do I increase Page Authority for a specific page?
Focus on earning quality backlinks from relevant pages, optimizing internal links from high-PA pages, and ensuring the content remains competitively comprehensive.
Is Page Authority still relevant in 2025?
Yes, as a comparative metric—but smart SEOs now weigh it alongside topical authority signals and first-party performance data rather than treating it as a standalone KPI.
What is a good Page Authority for a new blog post?
New posts typically start with PA 1-15. Aim to exceed the average PA of ranking pages for your target keyword through strategic internal linking and promotion.
For content strategists, the Page Authority metric remains a valuable diagnostic tool—but not an end goal. Smart SEO teams use PA scores to identify optimization opportunities while prioritizing topical depth and user value that transcends any single metric.