What is DA and PA in SEO – Guide to Domain & Page Authority

Last Updated on July 14, 2026 by Vinod Saini

Quick Answer: DA (Domain Authority) and PA (Page Authority) are Moz metrics on a 1-100 scale predicting a site’s or page’s ability to rank in search results. Google doesn’t use them directly — but they proxy what Google actually measures: link quality, relevance, and trust. Only 8.3% of all websites have a DA of 40 or above. Sites climbing from DA 30 to DA 40 see an average 67% increase in organic traffic. In 2026, high DA also correlates strongly with being cited in AI Overviews and ChatGPT responses — making DA/PA improvement more valuable than ever.

Key Takeaways

• Average website DA globally is just 21 — DA 30-40 already puts you ahead of most of the web
• Only 2.5% of websites ever reach DA 80+ — realistic targets are DA 35-50 for most businesses within 12 months
• DA is a proxy, not a Google signal — it correlates with what Google measures (links, trust, spam) but is calculated by Moz
• Review velocity + PA — a PA 50 page on the right topic beats a DA 70 generic domain for specific queries
• GEO connection: High-DA, well-structured content is significantly more likely to be cited in AI Overviews and ChatGPT
• Spam Score risk is faster in 2026 — toxic backlinks can now trigger manual actions within weeks, not months

What Domain Authority Really Means

Moz launched Domain Authority in 2012 as a machine learning score on a scale of 1 to 100. Higher scores indicate stronger ranking potential relative to competitors.

DA score tiers:

DA Range	Site Type	Notes
1–20	New/low-authority	Struggle with competitive keywords
21–40	Small businesses, early content sites	Most common range globally
41–60	Strong authority	Consistent content + quality backlinks
61–80	Established trusted brands	Often cited in AI summaries and media
81–100	Global publishers	Forbes, HubSpot, Wikipedia

Only 8.3% of all websites have a DA of 40 or above. Sites climbing from DA 30 to DA 40 see an average 67% increase in organic traffic.

Core Factors Driving DA Scores

Moz analyzes 40+ signals monthly. The highest-weight factors:

• Link Profile Strength — High-quality inbound links from unique root domains is the #1 factor
• Spam Score (2026 risk accelerated) — A Spam Score above 10-15% can now trigger a Google manual action within weeks rather than months. Regular backlink audits via Moz Link Explorer + targeted disavow submissions are essential
• Domain Diversity — Links from 100+ unique referring domains measurably lift DA
• Trust Signals — Links from Wikipedia, .edu, and .gov sources boost credibility
• Domain Age — Sites over 5 years carry higher baseline authority

New sites typically take 12–18 months to reach DA 30 with consistent backlink and content effort.

Page Authority: Why Individual Pages Matter

PA targets specific webpages on the same 1-100 scale. A well-optimized PA 50 page on “best SEO tools” can beat a DA 70 generic domain through targeted, intent-matched content.

Key PA drivers:

• Page-level backlinks — Dofollow links from high-PA pages transfer link equity directly
• Content depth — Comprehensive topic coverage consistently outperforms thin pages
• Internal linking — 5–10 contextual links from your strongest pages distribute authority effectively
• On-page optimization — Proper keyword placement, LSI terms, and semantic structure
• User engagement — Lower bounce rates and longer dwell time correlate with higher PA over time

DA vs PA vs DR: The 2026 Metrics Breakdown

Metric	Scope	Tool	Primary Signals	2026 Benchmark
DA	Domain	Moz	Links, spam, trust	40+ competitive
PA	Page	Moz	Page links, content depth	35+ strong
DR	Domain	Ahrefs	Referring domain count	50+ elite
Authority Score	Domain	Semrush	Links + traffic signals	40+ reliable
Trust Flow	Domain	Majestic	Link trustworthiness	30+ credible

Best practice: Use DR for backlink prospecting (raw data). Use DA for overall site health and competitive benchmarking. Combine both for the most accurate competitive picture.

Industry DA Benchmarks

Industry	Average DA	Top 10% Threshold
News & Media	72	DA 88+
Government	68	DA 85+
Education (.edu)	65	DA 82+
Finance / Banking	58	DA 75+
Technology	52	DA 70+
E-Commerce	45	DA 65+
Healthcare	43	DA 62+
Legal	41	DA 58+
Real Estate	38	DA 55+
Local Services / SMBs	28	DA 45+

DA, PA, and the Rise of AI Overviews (GEO)

This is the most significant shift in 2026 SEO. Google AI Overviews, ChatGPT, and Perplexity synthesize answers instead of just listing links — and high-authority sites get cited far more frequently in AI-generated responses.

To align DA/PA strategy with AI Overview visibility (GEO):

• Add summary paragraphs at the end of every major section — these are the “chunks” AI systems most commonly extract
• Implement FAQPage, HowTo, and Organization schema across key pages
• Build entity authority by earning citations alongside recognized industry names
• Write BLUF-style content — state your direct answer in the first sentence, then elaborate

Brands relying solely on traditional blue-link SEO risk a projected 25% decline in organic traffic by 2026 as AI Overviews absorb more SERP real estate.

E-E-A-T and Topical Authority: DA’s Governance Layer

In 2026, high DA alone no longer guarantees top rankings. A DA 30 niche expert can outrank a DA 90 generic site when their content demonstrates genuine, first-hand experience.

Strengthen E-E-A-T on every content page:

• Add a verified author bio with professional background and years of experience
• Reference Moz’s official documentation, Ahrefs studies, and Google Search Central directly
• Use first-hand examples with specific data
• Display trust signals: SSL certificate, clear About and Contact pages, consistent NAP

DA and PA Targets by Business Type

• SMBs & Local Services: Target DA 25–40. Even DA 30 dominates local SERPs when competitors hover at DA 15–20
• E-Commerce & D2C: Target DA 35–50. Build PA on top-converting product and category pages
• Educational Institutions: Target DA 50+. Faculty expert content, published research, .edu and .gov links
• Healthcare & Professional Services: Target DA 40–55. YMYL content needs verified authorship and medical association backlinks
• SEO Agencies & Freelancers: Target DA 40–60. Your DA is your credibility signal to every prospect who Googles you

Step-by-Step Guide to Increase DA

Realistic timeline: +10 DA points in 3–6 months

1. Acquire quality backlinks — Guest post on DA 50+ niche sites; one strong editorial link beats ten weak directory links
2. Publish linkable assets — Original data studies, infographics, and expert roundups earn natural links at scale
3. Fix technical SEO — Core Web Vitals above 90, mobile-first design, clean URL architecture, crawlable internal structure
4. Disavow toxic links — Audit via Google Search Console + Moz Spam Score filter; don’t wait for a penalty
5. Diversify referring domains — Target 50+ new root domains annually; domain diversity lifts DA faster than repeat links from the same source

Fast Ways to Boost Page Authority

• Refresh existing content — Add 2026 stats, new examples, fresh references
• Build strategic internal links — Anchor from your 5 highest-DA pages directly to the target page
• Implement FAQPage + HowTo schema — Drives rich snippets and can improve CTR by up to 20%
• Optimize for engagement — Add comparison tables or calculators to increase dwell time and reduce bounce rate
• Earn page-level backlinks — Targeted email outreach to sites already linking to similar content

Frequently Asked Questions

What is a good DA score?

The average is 21. DA 30-40 is solid for SMBs and startups. For competitive national rankings, target DA 50-60+. Only 2.5% of websites ever reach DA 80+.

How do you check DA and PA for free?

Moz Link Explorer (10 free checks/month), MozBar Chrome extension (real-time SERP data), Ahrefs Website Authority Checker (DR scores), The HOTH bulk DA checker.

DA vs DR: Which matters more?

Use both. DR (Ahrefs) for raw referring domain data. DA (Moz) for spam filtering and trust modeling. For a complete picture, use both plus Semrush Authority Score.

How long does it take to increase DA by 10 points?

3-6 months with focused quality backlinks, content upgrades, and technical fixes. New sites: 12-18 months to reach DA 30.

Does DA/PA affect AI Overviews?

Not directly, but high-authority structured content is significantly more likely to be cited. Pair high DA with BLUF writing and FAQPage schema for maximum AI visibility.

Related SEO Guides

• How to Recognize Quality Backlinks
• Internal Linking SEO Strategy
• SEO Audit Checklist 2026
• How to Rank in Google AI Overviews
• Programmatic SEO Guide

 

Need help building high-DA backlinks? Get a free backlink audit at CompareSEO.net — we identify toxic links, build DA 40+ editorial links, and track your authority growth. 72-hour delivery.