DA PA Checker
Domain Authority and Page Authority. Linking domains, backlinks.
What is DA PA Checker?
DA PA Checker is a free online tool that retrieves Domain Authority (DA) and Page Authority (PA) for any URL using the Moz API. You enter a website URL, and the tool returns the DA score (0–100), PA score (0–100), linking domains count, and total links count. SEO professionals, link builders, and site owners use it to quickly assess the authority of a domain or page. DA predicts how well a domain will rank in search results; PA predicts how well a specific page will rank. Both are developed by Moz and widely used in the SEO industry. The tool requires Moz API configuration on the server. No user signup is required.
The tool displays results in a card layout. The checked URL is shown at the top. DA and PA appear in separate cards with progress bars. Linking domains and total links are shown in additional cards. A brief interpretation (Excellent, Good, Average, Needs Work) is provided based on the DA score. The interface includes a URL input, Check DA PA button, Sample button (pre-fills google.com), and Reset. Results are read-only. An optional Copy DA Score button may copy a summary to the clipboard.
DA and PA are composite metrics based on link data. Higher scores generally indicate stronger backlink profiles and greater ranking potential. Use the tool to evaluate domains before link building, assess your own site's authority, or compare competitors.
Who Benefits from This Tool
SEO professionals benefit when evaluating link prospects and content partners. Check DA and PA before outreach to prioritize high-authority sites. Use linking domains and total links to gauge link profile depth.
Link builders benefit when building prospect lists. Filter or sort by DA. Avoid very low DA sites unless they are highly relevant. PA helps identify strong pages within a domain.
Site owners benefit when tracking their own authority. Run periodic checks to see if link-building efforts are moving the needle. Use the tool as part of an SEO audit.
Content marketers and publishers benefit when assessing where to publish or syndicate content. Higher DA sites typically offer more visibility and link equity.
Key Features
Domain Authority
DA is a 0–100 score for the root domain. It predicts ranking potential at the domain level. Displayed with a progress bar and optional interpretation.
Page Authority
PA is a 0–100 score for the specific URL. It predicts ranking potential at the page level. Displayed with a progress bar.
Linking Domains and Total Links
Linking domains: unique root domains linking to the page or domain. Total links: total number of links. These provide context for the authority scores.
Score Interpretation
The tool may show a brief label (Excellent, Good, Average, Needs Work) and advice based on the DA score. Use it as a starting point for optimization.
Sample and Reset
Sample loads google.com. Reset clears the form and results.
How to Use
- Enter the website URL. Type or paste the full URL.
- Complete the captcha if required.
- Click Check DA PA. The tool fetches data from the Moz API.
- Review DA, PA, linking domains, and total links. Use the data for link building or audits.
- Use Sample to test. Click Sample to try with google.com.
Common Use Cases
- Evaluating domains before link-building outreach
- Assessing page strength for guest posting or content partnerships
- Auditing your own site's DA and PA
- Comparing your domain to competitors
- Quick authority checks during due diligence
Tips & Best Practices
DA and PA are relative; compare within your niche. Focus on quality links over quantity. A few high-DA links can outweigh many low-DA links. Use the tool alongside other SEO metrics. DA/PA alone do not guarantee rankings.
Limitations & Notes
Requires Moz API configuration. Results depend on Moz's index. New sites may have limited data. The tool does not store URLs or results.
FAQs
Is the tool free?
What is a good DA?
What is a good PA?
Why does it show N/A?
Can I check multiple URLs?
How is DA calculated?
Does DA affect rankings?
Can I improve my DA?
What is the difference between DA and PA?
Why are linking domains and total links different?
DA and PA vs Other Authority Metrics
DA and PA are Moz-specific. Other tools use different metrics. For consistency, stick with one metric when tracking over time. DA and PA are updated as Moz's index updates. They can fluctuate; a small drop or rise is normal. Focus on trends over months rather than single data points. Use the tool as part of a broader audit: combine with content analysis, technical SEO, and keyword research.
Building Authority Over Time
Improving DA and PA requires building quality backlinks. Create valuable content that attracts natural links. Reach out to relevant sites for guest posts or partnerships. Avoid buying links or using link schemes; they can cause penalties. Remove or disavow bad links. Quality over quantity: a few links from high-DA, relevant sites are better than many links from low-DA or irrelevant sites. The tool helps you track progress; the real work is in content and outreach.