Domain Authority vs Domain Rating: The Complete Comparison

DA vs DR Overview

Domain Authority (DA) and Domain Rating (DR) are two of the most widely used SEO metrics for measuring website authority, but they come from different companies and use different methodologies. Understanding the differences helps you make better SEO decisions.

Domain Authority Explained

Domain Authority is a metric created by Moz. It predicts how likely a website is to rank in search engine results pages (SERPs). DA is scored on a 0-100 scale and is calculated using machine learning models that correlate link data with rankings across thousands of SERPs.

Moz considers factors like linking root domains, total number of links, and their proprietary spam score when calculating DA. The metric is updated roughly monthly when Moz recrawls the web.

Domain Rating Explained

Domain Rating is Ahrefs' metric for measuring the strength of a website's backlink profile. It focuses purely on the quantity and quality of backlinks, scoring sites from 0 to 100 on a logarithmic scale.

DR is updated more frequently than DA, typically reflecting new links within days of Ahrefs discovering them.

Key Differences

• Creator: DA is from Moz; DR is from Ahrefs
• Methodology: DA uses machine learning to predict rankings; DR measures backlink profile strength
• Update frequency: DA updates monthly; DR updates more frequently
• Data source: Each tool uses its own web crawler and link database
• Scale behavior: Both are logarithmic, but they often give different scores for the same site

Which One Matters More?

Neither DA nor DR is a Google ranking factor. Both are third-party estimates of authority. However, many SEO professionals prefer DR because:

• Ahrefs has a larger and more frequently updated link index
• DR updates are faster, giving more current data
• DR's methodology is more transparent

That said, the best approach is to track both metrics alongside your actual Google Search Console data. The real measure of SEO success is your organic traffic and rankings, not third-party scores.