Best Domain Authority Checkers to Evaluate Any Website

I’ve spent a lot of time optimizing websites and analyzing their online performance. One metric that comes up in almost every conversation is Domain Authority.

For me, it is a handy benchmark that quickly shows how a website might rank in search engine results.

The real benefit is not just the number itself but finding a fast, reliable, and easy-to-use Domain Authority checker.

In this post, I’ll guide you through 12 of the best Domain Authority checkers that I have personally tested or seen in action. I’m basing my picks on three core factors:

1. Speed (the tool must be very fast in showing results)
2. Ease of use (no clutter, no unnecessary steps, and ideally no login required)
3. Reliability (the data should be correct and updated often)

Here is a quick overview of them:

Let’s start by getting a quick look at Domain Authority, often shortened to DA itself, then we’ll review each tool one by one.

We made this review as part of a bigger analysis of the best SEO tools.

Why Domain Authority Matters

Domain Authority, often shortened to DA, is a scoring system developed by Moz. It shows how well a website is likely to rank on search engine result pages (SERPs).

The score goes from 1 to 100. A higher DA indicates a stronger ability to rank, although it is not an official Google metric.

For me, the biggest advantage is quick competitor analysis. If I need to measure how challenging it will be to outrank certain sites, I check their DAs.

High DA signals a tough competitor while low DA suggests a less challenging field.

Keep in mind:

• Domain Authority is only one measure. It works best as a general indicator, not a definite ranking formula.
• Different Domain Authority checkers might use varying data sets.

I routinely compare multiple tools to see if their results match or if there is any noticeable difference.

What Makes a Good Domain Authority Checker?

I look for three key features:

1. Bulk Checking: Sometimes I have dozens of domains to review. A good bulk check feature saves a lot of time.
2. No Login Required: When I’m short on time, I want to go directly to the tool, enter my domain list, and see results.
3. Additional SEO Data: Although domain scores alone can be enough, extra metrics—like backlinks, page authority, or spam score—can offer a more complete picture of a site’s SEO health.

Below are 12 tools that meet some or all of these criteria. We start with one that I’m personally involved in but still feel it stands among the best.

1. SEO.AI

I am working at SEO.AI, so it might be no surprise that I’m mentioning it here first, but I still believe it’s one of the best platforms out there for SEO.

Ranked the #1 platform for AI SEO, SEO.AI is built to write and optimize content for search engines. It goes beyond traditional metrics to help you create authority-boosting content, from blog articles to product descriptions.

With data-driven insights and a built-in AI Chat, you can instantly generate or refine content to better align with what search engines (including Google) look for.

It’s particularly handy if you need to optimize numerous pages or product feeds at scale simply let its AI handle the heavy lifting.

SEO.AI also provides real-time scoring, so you know exactly what to improve for better performance and potentially higher DA.

Integrations with platforms like WordPress, Shopify, and Google Merchant Center make it easy to implement changes without extra hassle.

Try it for free to see how it can boost your content and help you keep an eye on essential SEO metrics, including overall domain health.

2. Moz Link Explorer

I have used Moz Link Explorer countless times. It is where the term “Domain Authority” originally comes from. It feels appropriate to start here.

Moz Link Explorer requires you to sign in for full details, but you can get a quick view of a domain’s authority with either a free or paid account. Once logged in, you can:

• Check the DA of a single domain
• Get link metrics for deeper insights into backlinks
• Review anchor text distribution and top-performing pages

It is a well-rounded tool. The free version has limitations, but if you only perform occasional checks, it might be enough. Professionals may opt for the paid plan for all the extra features.

3. Ahrefs Website Authority Checker

Ahrefs is known for its strong backlink database, which often leads to correct metrics for site authority. Ahrefs calls its metric “Domain Rating (DR),” but it generally serves the same purpose as Domain Authority.

When I need a quick snapshot, Ahrefs’ free Website Authority Checker is simple:

• No login is needed for basic information
• It shows a domain’s DR and its number of backlinks
• It gives a brief look at organic keywords

What I appreciate most is the speed. Results come almost immediately, allowing you to gauge a website’s competitive stance without sorting through extra information. For more detailed analytics, a paid Ahrefs subscription offers a large amount of SEO data.

4. SE Ranking’s Domain Authority Checker

SE Ranking offers a Domain Trust Checker, which is their version of a DA metric. I have found their interface especially clear. You get:

• The Domain Trust score
• Total backlinks and referring domains
• Historical trends in the link profile

The best part is its ease of use. You can paste in several domains to get batch results.

Plus, it provides details about link sources so you can spot any questionable references.

If you want a quick overview with the option to check more details, SE Ranking is a solid option.

5. Semrush Domain Overview

Semrush offers a metric called “Authority Score.” Although it differs from Moz’s DA, it is still a quick way to gauge site strength.

Since Semrush includes a full suite of SEO tools, it can be useful to have everything in one place.

The authority checker appears in their “Domain Overview” feature, where you see:

• Authority Score
• Total backlinks and referring domains
• Top organic keywords
• Estimated organic traffic

I like how it brings all these data points together. Even though some may see Semrush as an advanced platform, they have designed the Domain Overview interface to be clean and easy to understand. Bulk checking might require a paid plan.

6. Ubersuggest

Ubersuggest, made by Neil Patel, has earned a spot as a user-friendly SEO tool. It gathers data from several sources to give a “Domain Score,” which works like DA.

The free interface allows a few checks each day, which is sufficient if you need a quick measure.

In the domain overview you get:

• Domain Score
• Backlink count
• Unique referring domains
• Organic keywords and traffic

For me, the biggest advantage is its simplicity. I often recommend Ubersuggest for those new to SEO because the interface is straightforward without overwhelming details.

The free version has some limits, but if you need unlimited checks and further analytics, the paid plans are available.

7. SERP Robot

SERP Robot is mainly known as a rank tracker, but it also includes a domain authority checker. I discovered it while looking into new rank tracking tools. What I find useful is that no login is needed for basic checks.

The interface is very simple. You enter your URL, wait a few seconds, and it displays a DA figure.

This tool is more focused and may not provide the in-depth data available from Moz or Ahrefs, but it is excellent for quick results.

8. SEO Review Tools

SEO Review Tools has provided an array of online SEO utilities for years. Their Domain Authority Checker uses Moz’s API, so you get official DA data without needing a Moz subscription for one-off checks.

A feature I like is the bulk check capability. You can enter a list of domains (up to 10 at a time for free) and get their DAs simultaneously. This is useful when auditing several sites at once. You will also see:

• Page Authority
• Social metrics
• Spam score (in some cases)

No login is needed, which is ideal if you want a quick, one-off check. There are paid options for more advanced needs, but the free version covers small-scale checks.

9. Small SEO Tools

Small SEO Tools offers a collection of online SEO utilities, and its Domain Authority Checker stands out for its quick and easy operation. It is free, delivers fast results, and does not require creating an account.

It does not provide a lot of extra data—primarily, you get the DA and some link metrics.

I keep it in my toolset because it is consistently available, rarely experiences performance issues, and loads quickly.

If you only need to see the DA quickly, it does the job without extras.

10. SiteChecker.pro

SiteChecker.pro provides an SEO platform, and one of its useful free features is the Domain Authority Checker. You see a combined score that estimates how likely a page or domain is to rank. It is similar to other domain trust metrics.

What makes it stand out for me is the visual interface. It uses color-coded progress bars to show link health, on-page factors, and speed.

It is also helpful for identifying broken links or other issues that need fixing.

You can choose to perform a mini-audit right after checking a domain’s authority.

While advanced site audits and monitoring are available if you sign up, you do not need an account for occasional DA checks.

11. LinkGraph’s Free DA Checker

LinkGraph is an SEO and digital marketing agency that provides a suite of free tools. Their Free Domain Authority Checker uses data from Moz’s index, giving you official DA numbers without a paid Moz plan.

The process is straightforward:

• Insert up to 10 URLs
• Click “Check”
• See your DA results in seconds

You can view the domain’s DA, Page Authority, and the number of backlinks quickly. This tool is handy when you need to check competitors without logging in to other platforms.

12. PrePostSEO’s DA Checker

PrePostSEO offers a wide range of SEO tools, and its Domain Authority Checker is very simple to use. Enter up to 500 URLs (which is very useful if you have many sites to analyze) and you get a list of metrics, including:

• Moz-based DA
• Page Authority
• Spam Score

Comparison Table

Below is an at-a-glance snapshot of these tools. Use it to decide which one fits your needs best:

FAQ

What is Domain Authority?

Domain Authority (DA) is a scoring system developed by Moz to predict how well a website is likely to rank on search engine result pages (SERPs). The score ranges from 1 to 100, with higher scores indicating a stronger ability to rank.

Why is Domain Authority important?

Domain Authority is useful for quick competitor analysis. It helps determine how challenging it might be to outrank certain sites. A high DA signals a tough competitor, while a low DA suggests a less challenging field.

What makes a good Domain Authority checker?

A good Domain Authority checker should offer bulk checking, require no login for quick access, and provide additional SEO data like backlinks, page authority, or spam score for a comprehensive SEO analysis.

Which Domain Authority checkers are recommended?

Recommended Domain Authority checkers include SEO.AI, Moz Link Explorer, Ahrefs, SE Ranking, Semrush, Ubersuggest, SERP Robot, SEO Review Tools, Small SEO Tools, SiteChecker.pro, LinkGraph, and PrePostSEO.

How often should Domain Authority be checked?

Domain Authority should be checked regularly to monitor changes in a website's ranking potential and to keep track of competitors' performance.