21 Nov How is Domain Authority Calculated?
How Domain Authority is Calculated?
Complete SEO Guide for Tradesmen.
Domain Authority (DA) : How is Domain Authority Calculated? Getting found on Google is tough for tradesmen. You can create websites, run ads, or post blogs, but if Google doesn’t trust your website, you’ll struggle to rank above your competitors. That’s why Domain Authority (DA) matters. DA predicts your website’s ability to rank based on back-link strength, linking root domains, trust signals, and more.
What Is Domain Authority (DA)?
Domain Authority is a score developed by Moz from 1–100. The higher the DA, the more likely your website can rank on Google.
- Back-link trust
- Linking root domains
- Domain history
- Website structure & SEO
- Spam score & technical health
Moz uses a machine-learning model and a logarithmic scale to calculate DA. It’s easier to move from DA 10 → 20 than from DA 50 → 60.[/vc_column_text]
How Is Domain Authority Calculated?
1️⃣ Linking Root Domains
The number of unique websites linking to yours is crucial. Multiple links from the same site are less valuable than links from many different domains.
2️⃣ Backlink Quality (MozRank & MozTrust)
High-quality backlinks from trusted sources boost DA. MozRank and MozTrust score links based on authority and relevance.
3️⃣ Content Strength
Google values helpful, relevant, and niche-focused content. Content that earns natural back-links builds topical authority over time.
4️⃣ Spam Score
Toxic links from spammy sites reduce DA. Disavowing harmful links protects your site’s authority.
5️⃣ Technical & UX Signals
Fast-loading, mobile-friendly, secure sites with clean URL structures perform better in Google’s eyes.
Why Domain Authority Matters for Tradesmen
- Faster Google rankings
- More clicks and visibility
- Stronger local map results
- Higher trust and more enquiries
Even a 5–10 point DA increase can help tradesmen dominate “near me” searches and win local service queries.
Domain Authority vs Other Metrics
| Metric | What It Measures |
|---|---|
| Domain Authority (DA) | Strength of your entire website |
| Page Authority (PA) | Ranking strength of an individual page |
| Domain Rating (DR) | Ahrefs’ equivalent metric for back-link profile strength |
How Tradesmen Can Improve Domain Authority
- Build High-Quality Back-links: Local sponsorships, suppliers, guest blogs, PR mentions.
- Increase Linking Root Domains: More unique domains linking to your site.
- Publish Helpful Content: Blogs, guides, checklists for your trade.
- Internal Linking: Link relevant service pages and guides together.
- Disavow Toxic Links: Protect your site from spammy back-links.
- Build Local Citations: Google Business Profile, industry directories.
How is Domain Authority Calculated?
hopefully this short blog answered a few of the puzzling questions on this topic. Sign up for your free custom website with SEO built-in. Start earning authority, traffic, and leads today.
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