
The Moz Chrome extension, officially known as MozBar, is one of the most popular free SEO tools
available. With over 800,000 installs and a 4.2-star rating on the Chrome Web Store, MozBar gives you instant
access to Moz’s proprietary SEO metrics — Domain Authority (DA), Page Authority (PA), and spam score — directly
in your browser as you surf the web.
Whether you’re evaluating potential link prospects, analyzing competitor SERPs, or quickly checking the authority
of a website before reaching out, MozBar puts critical SEO data right at your fingertips. In this comprehensive
guide, we’ll cover everything you need to know about installing, configuring, and mastering the Moz Chrome
extension in 2026.
What Is the Moz Chrome Extension (MozBar)?

MozBar is a free browser toolbar developed by Moz that overlays SEO metrics on top of your normal browsing
experience. When you visit any website or perform a Google search, MozBar displays key metrics like Domain
Authority, Page Authority, and the number of linking root domains — all without leaving the page you’re viewing.
Think of it as an X-ray vision for SEO. Instead of copying URLs and pasting them into separate SEO tools, MozBar
shows you the data in real-time as you browse. This makes it invaluable for quick competitive analysis, link
prospecting, and SERP evaluation.
How to Install the Moz Chrome Extension
Step-by-Step Installation
- Open Chrome Web Store: Navigate to the Chrome Web Store in your browser
- Search for “MozBar”: Type “MozBar” in the search bar and press Enter
- Click “Add to Chrome”: Find the official MozBar extension by Moz and click the blue “Add to
Chrome” button - Confirm the installation: A popup will list the permissions MozBar needs. Click “Add
Extension” to confirm - Create a free Moz account: You’ll need a free Moz Community account to use MozBar. Sign up
at moz.com/community if you don’t have one - Log in through the extension: Click the MozBar icon in your Chrome toolbar and log in with
your Moz account - Activate MozBar: Toggle the extension on, and you’ll see the MozBar toolbar appear below
your address bar
Pro Tip: Pin the MozBar icon to your Chrome toolbar for easy access. Right-click the extension
icon and select “Pin” to keep it visible at all times.
MozBar Features: What the Moz Chrome Extension Can Do
1. Domain Authority (DA) and Page Authority (PA)
The headline feature of MozBar is instant access to Moz’s proprietary authority metrics. Domain Authority
predicts how well a website will rank in search engines on a scale of 1-100, while Page Authority does the same
for individual pages. These metrics are calculated based on link data from Moz’s index of over 40 trillion
links.
2. SERP Overlay
When you search Google with MozBar active, it adds a data overlay below each search result showing:
- DA: Domain Authority of the ranking website
- PA: Page Authority of the specific ranking URL
- Linking Root Domains: Number of unique domains linking to that page
- Spam Score: Likelihood the domain is spammy (premium feature)
This SERP overlay is incredibly useful for keyword difficulty analysis. If the top 10 results all have DA 70+ and
hundreds of linking domains, you know the keyword is highly competitive. If you see results with DA 20-30,
there’s an opportunity for a newer site to rank.
3. On-Page Analysis
Clicking the MozBar icon on any page reveals detailed on-page elements including:
- Page title and meta description
- H1, H2, and H3 heading tags
- Alt text for images
- Internal and external link counts
- Page load time
- Schema markup presence
4. Link Metrics
View the full link profile for any domain directly in MozBar. This includes total backlinks, linking root
domains, and the ratio of followed vs. nofollow links. For deeper link analysis, you can export data to CSV or
jump directly to Moz’s Link Explorer tool. Pairing MozBar with a full SEO suite like Ahrefs gives you the most
comprehensive backlink picture.
5. Custom Searches
MozBar includes a custom search feature that lets you search different Google country versions, regions, and
languages without changing your browser settings. This is valuable for checking rankings in specific geographic
markets.
6. Page Highlighting
The highlight feature lets you visually identify different types of links on any page:
- Follow links: Highlighted in green
- Nofollow links: Highlighted in pink
- External links: Highlighted in blue
- Internal links: Highlighted in yellow
Free vs. Premium MozBar Features
| Feature | Free (Community) | Premium (Moz Pro) |
|---|---|---|
| DA/PA Scores | ✅ Included | ✅ Included |
| SERP Overlay | ✅ Basic | ✅ Advanced with Spam Score |
| On-Page Analysis | ✅ Included | ✅ Included |
| Keyword Difficulty | ❌ Not available | ✅ Included |
| Spam Score | ❌ Not available | ✅ Included |
| SERP Export (CSV) | ❌ Not available | ✅ Included |
| Link Metrics Depth | Basic | Full details |
| Daily Query Limit | 10 queries | Unlimited |
| Moz Pro Price | Free | $99/mo |
| ToolSurf Price | Free | $0.99/mo |
Practical Use Cases for MozBar
1. Quick Keyword Difficulty Assessment
Before writing content for any keyword, search it in Google with MozBar active. If every result on page one has
DA 60+ with hundreds of linking domains, it’s probably too competitive. Look for keywords where at least a few
results have DA below 40 — these represent realistic ranking opportunities.
2. Link Prospecting
When building backlinks, MozBar helps you quickly evaluate potential link sources with just a glance. Filter
prospects by DA to focus on high-authority sites that will pass the most link equity. A DA 50+ site with
relevant content is a great link target.
3. Competitor Content Analysis
Visit competitor pages and use MozBar’s on-page analysis to see their title tags, meta descriptions, heading
structure, and link profile. This reveals their on-page SEO strategy that you can improve upon. Combined with a
tool like Quetext for
originality checking, you can ensure your content is both better and unique.
4. Email Outreach Qualification
Before sending outreach emails for guest posting or link building, check the target site’s DA with MozBar. This
helps you prioritize high-authority sites and avoid wasting time on low-quality sites that won’t benefit your
link profile.
5. Client Reporting
Quickly collect DA/PA metrics for client websites and their competitors. Export SERP data to CSV for easy
inclusion in SEO audit reports.
MozBar vs. Alternative SEO Chrome Extensions
| Extension | Free Version | Key Metric | Best For |
|---|---|---|---|
| MozBar | ✅ Yes | DA/PA | Quick authority checks, SERP analysis |
| Ahrefs SEO Toolbar | ✅ Yes | DR/UR | Backlink analysis, traffic estimates |
| SEOquake | ✅ Yes | Multiple | Comprehensive on-page audits |
| Keywords Everywhere | ❌ Paid | Volume/CPC | Keyword research while browsing |
| Ubersuggest Extension | ✅ Yes | Volume/Difficulty | Keyword suggestions in SERPs |
Common MozBar Issues and Fixes
MozBar Not Showing Data
If MozBar displays “N/A” for DA/PA, it usually means the domain is too new or too small for Moz’s index.
Alternatively, check that you’re logged in — some features require authentication. Click the MozBar icon in the
toolbar and verify your login status.
How to Buy Moz Chrome Extension at an Affordable Price from Toolsurf.com
Getting access to premium tools like Moz Chrome Extension doesn’t have to break the bank. Here’s how to get it through Toolsurf:
- Visit the Toolsurf Store: Go to tools.toolsurf.com/cart
- Search for the Product: Search for “Moz Chrome Extension” and click on “Buy Now”
- Complete Your Purchase: Enter your details and complete the purchase process
That’s it! You’ll have access within minutes.
Why Choose Toolsurf to Buy Moz Chrome Extension?
- 💰 Save Up to 99% on Premium Tools
- ⚡ Get Access in Under 2 Minutes
- 🔒 99.9% Uptime Guarantee
- 💸 24-Hour Money-Back Guarantee
- 🎧 Avg. 5-Minute Response Time for Support
👉 Get Moz Chrome Extension at Toolsurf Now
MozBar Slowing Down Chrome
MozBar adds API calls to every page load, which can slightly slow down browsing. To minimize impact, toggle
MozBar off when you’re not actively using it. Click the “M” icon in your toolbar to quickly enable/disable it.
SERP Overlay Not Appearing
If you don’t see MozBar data in Google search results, check that the SERP overlay is enabled in MozBar settings.
Also, Google occasionally changes their SERP HTML structure, which can temporarily break the overlay until Moz
releases an update.
Frequently Asked Questions (FAQ)
Is the Moz Chrome extension free?
Yes, MozBar has a free version that includes DA/PA scores, basic SERP overlay, and on-page analysis. Premium
features like Spam Score, keyword difficulty, and CSV export require a Moz Pro subscription ($99/month) or group
buy access through ToolSurf ($0.99/month).
Does MozBar work on browsers other than Chrome?
MozBar is primarily designed for Google Chrome. There’s no official version for Firefox, Safari, or Edge. If you
use a Chromium-based browser like Brave or Opera, MozBar may work but isn’t officially supported.
Is Domain Authority (DA) a Google ranking factor?
No. DA is a Moz-proprietary metric, not a Google metric. Google has confirmed they do not use Domain Authority in
their algorithm. However, DA is a useful proxy for understanding a site’s overall link profile strength, which
does correlate with Google rankings.
How accurate is MozBar’s DA score?
DA is calculated from Moz’s link index (40+ trillion links) and is updated monthly. It’s directionally accurate —
high-DA sites generally rank better than low-DA sites — but it’s not perfect. Individual pages with great
content and relevant links can outrank higher-DA competitors.
Can MozBar slow down my browser?
Yes, slightly. MozBar makes API calls to Moz’s servers for each page you visit, which can add 100-500ms to page
load times. Toggle it off when browsing casually and only activate it when doing SEO research.
How often does Domain Authority update?
Moz updates DA scores approximately once per month. Major algorithm updates can cause significant DA fluctuations
across many sites simultaneously. Check Moz’s blog for announcements about DA updates and methodology changes.
What’s the difference between DA and DR (Ahrefs)?
Domain Authority (DA) by Moz and Domain Rating (DR) by Ahrefs are similar but use different calculations. DA uses
a machine learning model trained on actual SERPs, while DR focuses purely on the strength of a site’s backlink
profile. They often produce different scores for the same domain.
🏆 ToolSurf Verdict: Moz Chrome Extension
The Moz Chrome extension (MozBar) remains one of the best free SEO
tools available in 2026. Every SEO professional should have it installed — the instant DA/PA data and SERP
overlay save hours of manual research. For premium features like Spam Score and unlimited queries, unlock
Moz Pro through ToolSurf for just $0.99/month instead of $99/month.
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