DA PA Checker - Check Domain & Page Authority Online Free

What Are DA and PA?

Domain Authority (DA) and Page Authority (PA) are metrics developed by Moz that predict how well a website or a specific page is likely to rank in search engine results. Both scores range from 1 to 100 on a logarithmic scale, where higher numbers indicate greater authority and ranking potential.

Domain Authority measures the overall strength and credibility of an entire domain or subdomain. It is calculated using dozens of factors including the number and quality of linking root domains, total number of backlinks, and other signals that indicate domain-level trust and relevance. Think of DA as a snapshot of your website's reputation across the entire internet.

Page Authority measures the ranking strength of a single page rather than the entire domain. Even on a high-DA website, individual pages can have widely varying PA scores depending on how many quality links point directly to that page and how relevant the content is. A product landing page may have a much higher PA than a recently published blog post.

Understanding both metrics together gives you a complete picture. DA tells you how strong your domain is as a whole, while PA reveals which specific pages are performing well and which ones need more attention. You can check your domain's overall authority with our Domain Authority Checker and analyze the backlinks driving those scores using the Backlink Checker.

How DA and PA Differ

While DA and PA use similar calculation methods, they measure fundamentally different things. Understanding the distinction is critical for making the right SEO decisions.

• Scope — DA evaluates the entire domain or subdomain as a single entity. PA evaluates one specific URL.
• Update timing — A change to one page's backlink profile may move its PA immediately but will have a negligible effect on the overall DA, which averages signals across the entire domain.
• Use cases — Use DA when evaluating a domain for guest posting, partnerships, or competitive analysis. Use PA when deciding which pages to prioritize for link building or content optimization.
• Benchmarks — In competitive niches, a DA of 40+ can be strong. For PA, the benchmark is relative to competing pages for the same target keyword.

A brand-new page on a DA 70 site might start with a PA of 1 because it has no backlinks of its own. Over time, as it earns links and demonstrates relevance, its PA climbs. Meanwhile, the DA remains relatively stable because it reflects the aggregate of the entire domain's authority.

The 1-100 Scale Explained

Both DA and PA use a logarithmic scale from 1 to 100. The logarithmic nature means that the effort required to move from one score to the next increases significantly as scores get higher:

• DA 1-20 — New or low-authority sites. Relatively easy to improve with consistent effort.
• DA 21-40 — Established sites with moderate backlink profiles. Common range for small to medium businesses.
• DA 41-60 — Authoritative sites with strong backlink profiles. Requires sustained effort to reach and maintain.
• DA 61-80 — Highly authoritative domains, typically major publications, well-known brands, or long-standing industry leaders.
• DA 81-100 — Exceptional authority. Reserved for the most dominant domains on the internet such as major search engines, social platforms, and top-tier media outlets.

Do not be discouraged by small fluctuations. A one-point change in either direction is normal and does not necessarily indicate a meaningful shift in your site's authority. Track your scores monthly and focus on the long-term trend rather than daily movements.

What Factors Influence DA?

Moz calculates DA using a machine learning model trained against Google's actual search results. While the exact algorithm is proprietary, the primary factors include:

• Linking root domains — The number of unique domains that link to your site. Ten links from ten different domains are generally more valuable than ten links from a single domain.
• Total backlinks — The total number of inbound links across all pages on your domain.
• Link quality — Links from high-authority, relevant domains carry more weight than links from low-quality or unrelated sites.
• Link diversity — A natural backlink profile includes a mix of dofollow and nofollow links, different anchor texts, and links from various types of websites.
• Site age — Older domains that have consistently earned links over time tend to have higher DA, though age alone is not a direct factor.
• Content quality — Websites with comprehensive, well-structured, and regularly updated content naturally attract more links over time.

What Factors Influence PA?

Page Authority focuses on signals specific to a single URL:

• Incoming links to the page — The number and quality of backlinks pointing directly to that page. This is the strongest PA factor.
• Anchor text diversity — A natural distribution of anchor text in the links pointing to the page helps establish topical relevance.
• Internal linking — How many other pages on your site link to this page, and with what anchor text. Internal links distribute authority throughout your site.
• Content relevance — The depth, structure, and topical relevance of the page's content relative to the keywords it targets.
• User engagement signals — While not directly measured by PA, pages that attract clicks, shares, and comments tend to earn more backlinks over time, indirectly boosting PA.
• Page age and freshness — Older pages that have accumulated links over time typically have higher PA, but regularly updated pages can maintain strong authority.

Use Cases for DA PA Checker

Knowing your DA and PA is valuable, but knowing how to apply that knowledge is what drives real results:

• SEO auditing — Include DA and PA in your site audits to identify pages with low authority that need backlink support. Prioritize your most important commercial pages for link-building campaigns.
• Competitor comparison — Check the DA and PA of competing websites in your niche. If a competitor has significantly higher authority, you know that link building and content promotion are key areas where you need to invest.
• Link building prioritization — When evaluating potential link-building opportunities, use DA to filter high-quality prospects. A link from a DA 60 site is typically more valuable than one from a DA 15 site, assuming both are relevant to your niche.
• Guest post evaluation — Before writing a guest post, check the host site's DA to ensure the effort will provide meaningful authority benefits. Prioritize sites with DA 30+ for the best return.
• Client reporting — DA and PA provide easy-to-understand numbers for clients who may not be familiar with technical SEO metrics. Show progress over time to demonstrate ROI.
• Partnership decisions — Before entering a content partnership, co-marketing arrangement, or affiliate relationship, check both parties' DA to ensure the partnership makes strategic sense.

How to Improve DA and PA

Improving authority scores is a long-term process that requires consistent effort. Here are proven strategies:

• Earn high-quality backlinks — Focus on getting links from authoritative, relevant websites in your industry. Guest posting, digital PR, original research, and creating linkable assets are effective approaches.
• Create valuable content — Publish comprehensive guides, original research, data studies, and interactive tools that naturally attract links and social shares.
• Audit and remove toxic backlinks — Use our Backlink Checker to identify spammy or low-quality links pointing to your site. Disavow harmful links through Google Search Console.
• Strengthen internal linking — Link your most important pages from high-authority pages within your site to distribute authority and improve PA for priority URLs.
• Build topical authority — Create clusters of related content around core topics to establish your site as an authority in specific niches.
• Be patient — Authority building is measured in months and years, not days. Consistent effort compounds over time. DA and PA typically respond to changes with a delay of several weeks.

DA PA vs Other SEO Metrics

DA and PA are widely used but they are not the only authority metrics available. Here is how they compare:

• DA/PA (Moz) — Focuses on link-based authority. Best for comparing relative authority between domains and pages.
• Domain Rating (Ahrefs) — Similar concept using Ahrefs' own backlink data. Useful for cross-referencing with Moz's DA.
• Trust Flow (Majestic) — Measures trust based on the quality of linking sites. Provides a different perspective on link quality.
• Google PageRank — Google's original authority metric, now discontinued as a public metric. DA and PA serve as industry replacements.

For the most complete picture, use multiple metrics together. A domain with high DA but low Trust Flow may have a suspicious backlink profile. Cross-referencing metrics helps you make more informed decisions.

How to Use This Tool

1. Enter a domain or URL — Type or paste the domain name (e.g., example.com) or a full page URL into the input field.
2. Click Check DA & PA — The tool retrieves both Domain Authority and Page Authority scores in real time.
3. Review the results — View the DA score, PA score, and related metrics in the results panel.
4. Check another domain — Clear the input and enter a different domain to run another lookup. No usage limits.

Related Tools

• Domain Authority Checker — Check the Domain Authority of any website instantly.
• Backlink Checker — Analyze the backlink profile driving your DA and PA scores.

Privacy and Security

DA PA Checker retrieves publicly available authority data. We do not store the domains you check, track your usage, or collect any personal information. The tool processes your query and displays the results directly. No cookies, tracking scripts, or analytics record your activity.