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SEO Tools & Analytics

Moz Toolbar

MozBar is a free browser extension from Moz that overlays SEO metrics like Domain Authority and on-page element data directly in the browser.

Also called
Moz toolbar, MozBar extension
Applies to
Chrome, Firefox browsers
Commonly confused with
Google PageRank toolbar, Ahrefs toolbar

Key points

  • MozBar shows Domain Authority, Page Authority, and backlink counts while you browse any page.
  • It highlights followed and nofollowed links, plus internal and external links, for quick link inspection.
  • The toolbar can surface on-page SEO elements such as title tags, meta tags, and alt text.
  • Some features require a Moz account or Moz Pro subscription, so not all data is free.
  • MozBar is a diagnostic tool, not a replacement for full site crawlers or log-file analysis.

Why it matters

MozBar speeds up routine SEO tasks by putting proprietary metrics directly on the page you are viewing. Without it, a practitioner would need to copy a URL into a separate tool, wait for a report, and then cross-reference the data. MozBar collapses that workflow into a single click, which matters when you are reviewing dozens of pages in a session. It also reduces the risk of missing obvious on-page issues such as missing alt text or broken meta tags, because those elements are surfaced in the toolbar overlay rather than buried in a report.

The toolbar is especially useful for competitive analysis. When you land on a competitor's page, MozBar immediately shows its domain authority and page authority, giving you a rough sense of how hard it might be to outrank that page. It also exposes link patterns, such as whether the competitor uses many nofollowed links, which can inform your own link-building strategy. However, these metrics are proprietary to Moz and should not be treated as Google ranking factors.

Where it changes your decision

  • During link prospecting: MozBar highlights followed and nofollowed links on a page, so you can quickly decide whether a potential link source passes equity or not.
  • During SERP review: The toolbar can show search results from a different locale, helping you decide whether a page's ranking position varies by region and whether you need to adjust your targeting.
  • During on-page audits: MozBar surfaces title tags, meta descriptions, and alt text directly, letting you decide in seconds whether a page has basic SEO elements in place without opening a separate crawler.
Read next Moz After understanding what MozBar does, the Moz page explains the broader suite of tools and how they complement the toolbar for deeper analysis.
Links & Authority Domain Authority A Moz metric on a 1–100 scale that predicts a website's ability to rank based on backlink… Links & Authority Page Authority Page Authority (PA) is Moz’s page-level score that predicts how likely a specific URL is to… SEO Tools & Analytics Moz Moz is an SEO software platform for keyword research, rank tracking, site audits, backlink… SEO Tools & Analytics Moz Pro Moz Pro is a subscription-based SEO software suite for keyword research, rank tracking, site… SEO Tools & Analytics Moz DA Checker A Moz DA checker reports a domain's Moz Domain Authority score, a 1–100 comparative metric… SEO Tools & Analytics Moz Ranking Factors Moz ranking factors are search signals and page characteristics that Moz's research correlates…

Sources

  1. MozBar help guide Primary product documentation describing features, setup, and core functionality.
  2. MozBar product page Official product page confirming platform support and primary metrics.
  3. Chrome Web Store listing for MozBar Official distribution listing confirming the extension name and browser availability.
  4. Moz blog announcement for MozBar v4 Official update source showing the product has evolved and may change over time.

Written and maintained by Nora Lindholm. Last updated 27 July 2026.

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