MozBar
MozBar is a free browser extension from Moz that shows SEO metrics and on-page data directly in Chrome or Firefox while you browse or view search results.
Key takeaways
- MozBar is a free browser extension for quick SEO metric checks on any page or SERP.
- It displays Moz-specific metrics like Domain Authority, Page Authority, and Spam Score.
- Use it for on-page element inspection and link attribute highlighting.
- Do not rely on it for full technical audits or keyword research.
- Always log in to access all features.
MozBar is a free browser extension from Moz that shows SEO metrics and on-page data directly in Chrome or Firefox while you browse or view search results.
What MozBar is used for
- Quick SERP analysis: View Domain Authority, Page Authority, and Spam Score for each result in search engine results pages.
- On-page element inspection: Check title tags, meta descriptions, headings, and other page details without opening developer tools.
- Link attribute highlighting: See which links are followed, nofollowed, internal, or external at a glance.
- Competitor research: Compare authority metrics across multiple sites during browsing.
- Link profile overview: Get a snapshot of backlink-related data for any page.
Quick start workflow
- Install MozBar from the Chrome Web Store or Firefox Add-ons.
- Log in with your Moz account (free or Pro).
- Enable the extension by clicking the MozBar icon in your browser toolbar.
- Browse any page or search results – metrics appear in the toolbar.
- Use the dropdown menu to toggle features like link highlighting or page element inspection.
When not to start here
- Full technical SEO audits: MozBar is a quick inspection tool, not a replacement for comprehensive audits with tools like Screaming Frog.
- Keyword research: MozBar does not provide keyword difficulty scores or search volume data.
- Backlink analysis: For deep link profile analysis, use Moz Pro or Ahrefs.
- Treating metrics as Google ranking factors: Domain Authority and Page Authority are Moz-specific signals, not official Google metrics.
Alternatives
| Tool | Key difference |
|---|---|
| Ahrefs | Paid tool with extensive backlink database and keyword research. |
| Semrush | Paid suite with competitive analysis, keyword tracking, and site audits. |
| Ubersuggest | Freemium tool with keyword suggestions and domain overview. |
| Google Search Console | Free tool for monitoring Google search performance and technical issues. |
Next step
FAQ
Is MozBar free?
Yes, MozBar is free to install and use, but requires a Moz login for full features.
Does MozBar affect page speed?
MozBar may slightly slow down page loading as it fetches metrics, but it is generally lightweight.
Can I use MozBar on mobile?
No, MozBar is only available as a browser extension for Chrome and Firefox on desktop.
Related topics
Sources
- MozBar Help Guide — Primary documentation for features, setup, and supported metrics.
- MozBar Chrome Web Store listing — Official listing confirming product description and availability.
- MozBar product page — Official product overview with core capabilities and supported browsers.
- MozBar V4 announcement — Official Moz announcement for the current product positioning and metrics.
Reviewed by Lucía Marín, Founding editor.