Free Online Moz DA Checker
SEPR Forge’s Moz DA Checker lets you check the domain authority, analyze PA, review spam score, and evaluate any URL using our fast DA and PA checker tool.
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What is the Moz's Domain Authority (DA)?
Moz’s Domain Authority is a predictive metric developed by Moz to estimate how likely a domain is to rank on search engines. Moz expresses the DA score on a logarithmic scale from 1 to 100, where a higher score reflects stronger authority signals.
From a technical view, DA is measured using machine learning trained on millions of search engine results. The model studies backlink relationships, link quality, trust flow, domain age, and PA distribution to calculate ranking probability.
Domain Authority does not replace PA. Instead, domain authority and page authority work together. DA evaluates domain strength, while PA evaluates each URL. This distinction helps SEO professionals understand why one URL ranks well even when the domain struggles, or why a high DA domain still fails with weak PA.
Moz confirmed in a 2023 dataset of 12,000 keywords that domains with higher DA showed a 63% greater probability to rank on search positions one through ten on search result pages.
Key Features of Domain Authority Checker
SEPR Forge’s Moz domain authority checker is built to remove friction between professionals and reliable authority data.
100% Free Access
Use the free version to check DA, evaluate PA, review spam score, and inspect any URL without limitations.
Genuine Moz Metrics
The system retrieves real Moz data, so your DA score, PA, and domain rating reflect authentic authority behaviour.
Authority Clarity
This checker checks the authority to reveal how the quality and quantity of backlinks influence PA, & domain rating
How is Moz Domain Authority calculated?
Moz calculates Domain Authority through a multi-stage data science system driven by multiple factors.
Link Graph Construction
Moz crawlers scan billions of pages and connect each URL into a global link network. This network records authority flow, anchor relevance, PA inheritance, and spam score risk.
Feature Processing
The model extracts authority signals such as linking domains, domain age, backlink velocity, and PA concentration. These signals define how each URL contributes to overall authority.
Predictive Modeling
A supervised learning model compares those features with actual search rankings and predicts ranking probability. Moz converts that probability into a normalized DA score and comparative domain rating.
Is Domain and Page Authority legitimate?
Domain Authority holds legitimacy as a predictive SEO benchmark. Moz analysed over 1 million search engine result pages in 2023 and found that domains with stronger DA appeared well in search 67% more often than low authority competitors.
Analyzed ~1M results from 68,000 searches (top 10 positions) in the US, published May 2022. Although Ahrefs uses a different domain rating, the authority behaviour aligned with Moz DA patterns.
Backlinko’s 2025 study analyzed 11.8 million Google search results and found that a site’s overall link authority, measured by Ahrefs Domain Rating (DR), strongly correlates with higher rankings on the first page.
However, professionals must use DA with PA, spam score, and link quality analysis. A high DA domain with toxic links can lose trust rapidly.
How to Use Our Moz Domain Authority Checker?
Steps to follow to check the domain authority:
Enter your URL into the input box of the checker tool.
Click the button to check DA instantly.
Review your DA score, PA, spam score, and domain rating.
Do’s and Don’ts of Moz DA Checker
Do’s ✅
Do analyse PA at the URL level to knows page-specific impact.
Track the domain age influence when comparing competitors.
Monitor spam score trends to avoid trust erosion.
Do compare the domain rating with the DA score.
Do validate link quality before outreach decisions.
Don’ts ❌
Don’t rely on the DA score alone without PA context.
Don’t ignore spam score even on high DA domains.
Don’t assume a higher score guarantees rankings.
Don’t compare unrelated industries.
Don’t overlook the quality and quantity balance in backlinks.
Frequently Asked Questions
PA evaluates a single URL, while DA evaluates the entire domain.
Yes. You can test any URL individually using the domain authority tool.
Yes. Domain age contributes to trust development over time.
PA responds more quickly to link and content changes.
Yes. A high spam score can weaken trust signals.
No. Domain rating comes from other platforms but reflects similar authority logic.
DA does not send traffic but influences ranking probability.
Yes. The tool supports competitor benchmarking.
Weak PA, poor content relevance, or low link quality can block performance.
Monthly tracking offers reliable trend visibility.
No, domain and page authority are not ranking factors. Google won’t consider it as a ranking signal.