Domain Authority Checker Tool: What It Is, Why It Matters & How to Use It

Domain Authority Checker Tool: What It Is, Why It Matters & How to Use It

In the world of SEO, Domain Authority (DA) is one of the most talked-about metrics. Whether you're a blogger, digital marketer, or business owner, knowing your domain authority helps you understand how well your website might perform in search engine rankings.

But how do you find out your site's Domain Authority?

That's where a Domain Authority Checker Tool comes in.

In this article, you’ll learn:

What Domain Authority is
Why it’s important for SEO
How Domain Authority is calculated
The best Domain Authority Checker tools available
How to improve your site’s DA

Let’s dive in!

🔍 What is Domain Authority (DA)?

Domain Authority is a search engine ranking score developed by Moz. It predicts how likely a website is to rank on search engine result pages (SERPs). The score ranges from 1 to 100, with higher scores indicating a greater ability to rank.

A DA of 10–30 = Low authority
A DA of 30–50 = Moderate authority
A DA of 50–70 = Strong authority
A DA of 70–100 = Very high authority

💡 Note: Domain Authority is not a Google ranking factor. But it can help you compare your site against competitors.

🧠 How is Domain Authority Calculated?

Moz calculates DA using a number of factors, including:

Total number of backlinks
Quality of backlinks
Root domains linking to your site
MozTrust and MozRank metrics
Site structure and crawlability

The algorithm uses machine learning to compare your site’s data to thousands of other sites, then predicts how well your site might rank.

🚀 Why Is Domain Authority Important?

Understanding your Domain Authority can help you:

Use Case	Benefit
Measure SEO strength	Know how strong your site is
Competitor analysis	See how you stack up against others
Link-building strategy	Target sites with higher DA
Track progress	See if your SEO efforts are paying off
Improve authority	Focus on backlink quality and content

🧪 What is a Domain Authority Checker Tool?

A Domain Authority Checker Tool is an online tool that allows you to instantly check the DA of your domain or any competitor's domain. Most tools also display:

Page Authority (PA)
Total backlinks
Linking domains
Spam Score
Anchor text distribution

These insights help you plan better SEO strategies.

🛠️ Top 5 Domain Authority Checker Tools

Let’s explore some of the best and most accurate tools to check Domain Authority.

🔹 1. Moz Link Explorer (Official Tool)

Website: https://moz.com/link-explorer

Why it’s great:

Developed by Moz (creators of DA)
Most accurate and updated scores
Also shows Page Authority, linking domains, and spam score

Limitations:

Limited free searches per month
Paid plans for detailed reports

🔹 2. Ahrefs Website Authority Checker

Website: https://ahrefs.com/website-authority-checker

Key Features:

Uses “Domain Rating (DR)” – Ahrefs' own metric (similar to DA)
Shows backlinks, referring domains, and organic traffic
Real-time updates

Best for: Pro users and in-depth analysis

🔹 3. Small SEO Tools DA Checker

Website: https://smallseotools.com/domain-authority-checker/

Why it’s popular:

Completely free
Allows bulk DA checks
Displays PA and Moz metrics

Ideal for: Bloggers, small businesses, and quick checks

🔹 4. PrepostSEO Domain Authority Checker

Website: https://www.prepostseo.com/domain-authority-checker

Features:

Checks multiple domains at once
Displays Moz DA, PA, backlinks
No signup required

Good for: Bulk checking and beginners

🔹 5. SEO Review Tools – DA Checker

Website: https://www.seoreviewtools.com/website-authority-checker/

Highlights:

Real-time DA & PA results
Clean interface
Trusted by many SEO experts

Good for: Reliable free option with deep results

📋 How to Use a Domain Authority Checker Tool

Using a DA checker tool is super easy. Here’s a step-by-step guide:

Go to your chosen DA checker tool
Enter your domain name (e.g., yourblog.com)
Click "Check" or "Submit"
View your DA score, PA score, and backlink data
Optionally, enter competitor URLs to compare

🔁 You can also set up weekly DA tracking using paid SEO tools like Moz Pro, Ahrefs, or SEMrush.

📉 What is a “Low” Domain Authority Score?

A low DA score (below 30) usually means:

Few backlinks or poor link quality
New website with little authority
Spammy backlink profile

But don’t panic! Every big site once started at DA 1.

📈 How to Improve Domain Authority

If your DA is low, here’s how to boost it:

✅ 1. Earn High-Quality Backlinks

Backlinks are the most important DA factor. Focus on:

Guest posting on reputable sites
Creating shareable infographics
Publishing ultimate guides and original research

✅ 2. Remove Bad Backlinks

Use tools like Google’s Disavow Tool or SEMrush Backlink Audit to clean spammy links.

✅ 3. Create Strong Internal Linking

Help search engines crawl your site by linking related pages and posts.

✅ 4. Write SEO-Optimized Content

Target long-tail keywords, optimize headers, and update old posts to get more organic traffic.

✅ 5. Improve Site Speed and Mobile Experience

Better UX = Better engagement = Better SEO signals = Higher DA.

✅ 6. Promote on Social Media

More visibility = More backlinks = Higher DA

⚠️ Myths About Domain Authority

Let’s bust a few common misconceptions:

Myth	Truth
Google uses DA as a ranking factor	❌ False — it’s a Moz metric
High DA always = high traffic	❌ Not always — depends on content too
You can increase DA overnight	❌ DA grows gradually with SEO improvements
Buying backlinks will boost DA	❌ Risky — can lead to penalties and DA drops

📊 DA vs PA vs DR vs TF: What's the Difference?

Metric	Tool	Measures
DA (Domain Authority)	Moz	Domain-wide ranking potential
PA (Page Authority)	Moz	Ranking power of a single page
DR (Domain Rating)	Ahrefs	Backlink strength of a domain
TF (Trust Flow)	Majestic	Quality of backlinks (trust)

📌 Tip: Check multiple metrics across tools for a full picture.

🏁 Conclusion: Make Domain Authority Your SEO Compass

Domain Authority may not be a Google metric, but it’s still a powerful SEO signal that helps you track your website’s growth, credibility, and potential to rank.

Whether you’re a beginner blogger or running a business site, a Domain Authority Checker Tool can: