Moz Domain Authority Checker

A DA Checker is an online tool used to measure a website’s Domain Authority (DA) and Page Authority (PA) scores. These metrics come from Moz and indicate the ranking potential of a domain or individual page in search engine results. The DA Checker provides quantifiable data for evaluating SEO performance and comparing domains.

Website Authority Overview

Website authority represents the overall strength of a domain in ranking environments. Higher authority scores correlate with an increased likelihood of visibility in search results. Domain Authority is not a direct Google ranking factor, but it aligns with observed ranking outcomes and is used for comparison and assessment.

Metrics Provided by the DA Checker

The DA Checker typically outputs the following data:

• Domain Authority (DA)
• Page Authority (PA)
• Spam Score (SS)
• Referring Domains (RD)
• Unique Referring Domains (URD)

DA and PA values are derived from Moz’s machine learning calculations that analyze link-based and domain-related factors.

Use Cases for the DA Checker

• Competitive Comparison: Evaluate authority differences between domains in the same market.
• Link Source Evaluation: Determine whether a domain is suitable for link-building or outreach.
• Authority Tracking: Observe DA and PA changes over time as optimization work progresses.
• Bulk URL Evaluation: Check multiple URLs at once in supported tools.
• Reporting: Export results to formats such as CSV or Excel for documentation.

Authority Improvement Considerations

Increases in Domain Authority occur over time and are associated with acquiring links from unique and relevant referring domains, improving on-page structure, maintaining internal linking, removing harmful links, and updating content. Authority reflects cumulative link and domain quality signals rather than short-term changes.