TL;DR: Domain Authority (DA) של Moz ו-Domain Rating (DR) של Ahrefs הם third-party metrics. Google's actual metric (siteAuthority) חשף ב-ההדלפה של 2024. DA/DR correlate with ranking but imperfectly.
מה זה DA ו-DR
DA (Domain Authority). Moz: ציון 1-100 based on Moz's link database.
DR (Domain Rating). Ahrefs: דומה, based on Ahrefs database.
שניהם third-party estimates. גוגל לא משתמש בהם.
siteAuthority. הגילוי
ההדלפה של 2024 חשפה: Google has internal siteAuthority score. Similar concept to DA/DR but Google's own.
Not public, not visible. But confirms there's a domain-level score.
Should you care about DA/DR?
Partly. They:
- Proxy for Google's actual score.
- Useful for competitive comparison.
- Help evaluate link opportunities (DA 50 site > DA 20 site).
But they:
- Not the actual Google score.
- Can be manipulated (link spam raises DA artificially).
- Shouldn't be sole decision criterion.
How to Improve
Same as Google rankings:
- Quality backlinks.
- Content quality.
- Time.
- Technical health.
Moz vs Ahrefs. Which More Accurate?
Ahrefs DR generally considered more accurate (larger link database). Moz DA easier to remember (newer users).
Practical Use
- Benchmark vs competitors.
- Evaluate link opportunities (only get links from sites with similar or higher authority).
- Track overall domain growth over time.