SEO browser extensions put critical data at your fingertips while browsing — no need to switch between tabs or log into separate dashboards. The right toolbar extension can speed up competitor analysis, on-page audits, and keyword research by showing key metrics directly in your browser.
Top SEO Toolbar Extensions
1. Ahrefs SEO Toolbar
The Ahrefs toolbar provides on-page SEO reports and SERP overlay metrics directly in Google search results.
- Key features: On-page SEO audit (meta tags, headings, word count, hreflang), SERP metrics overlay (DR, backlinks, traffic), broken link highlighting, redirect tracing
- Pricing: Free for basic features; full metrics require an Ahrefs subscription
- Best for: Ahrefs users who want instant access to domain and page metrics while browsing
2. MozBar
MozBar is one of the most established SEO toolbars, providing Moz’s proprietary metrics in search results and on any page.
- Key features: Domain Authority (DA) and Page Authority (PA) in SERPs, on-page element analysis, link metrics, custom searches by engine and location
- Pricing: Free with Moz account; premium features with Moz Pro subscription
- Best for: Quick domain authority comparisons and competitive SERP analysis
3. SEOquake
SEOquake provides a comprehensive set of SEO metrics as a browser toolbar with extensive customization options.
- Key features: SERP overlay with multiple metrics, on-page SEO audit, keyword density analysis, internal/external link analysis, social metrics, export to CSV
- Pricing: Free (powered by SEMrush data)
- Best for: SEO professionals who want detailed, customizable metrics without paying for a subscription
4. Ubersuggest Chrome Extension
Neil Patel’s Ubersuggest extension shows keyword data and domain metrics directly in Google search results.
- Key features: Monthly search volume and CPC in SERPs, related keyword suggestions, domain score and backlink count, content ideas based on search queries
- Pricing: Free with limited daily searches; paid Ubersuggest plans for full access
- Best for: Beginners and content marketers who want quick keyword insights without leaving Google
5. Keywords Everywhere
Keywords Everywhere overlays search volume, CPC, and competition data directly on Google, YouTube, Amazon, and other platforms.
- Key features: Search volume displayed on multiple platforms, related keywords and “People Also Search For” data, trend charts, bulk keyword import
- Pricing: Credit-based system starting at $10 for 100,000 credits
- Best for: Content creators and marketers who research keywords across multiple platforms
6. SEO Minion
SEO Minion is a free extension focused on on-page SEO analysis and common technical SEO tasks.
- Key features: On-page SEO analysis, broken link checking, SERP preview tool, hreflang tag checking, Google Search location simulator
- Pricing: Free
- Best for: Technical SEO tasks like checking hreflang tags, broken links, and SERP previews
7. Detailed SEO Extension
A clean, focused extension that provides a quick overview of any page’s SEO elements.
- Key features: Meta tag overview, heading structure, image alt text audit, link analysis, canonical and robots tag checking, schema markup detection
- Pricing: Free
- Best for: Quick on-page SEO checks and competitor page analysis
8. Redirect Path
A specialized extension that shows HTTP status codes and redirect chains for any page you visit.
- Key features: Real-time HTTP header display, redirect chain visualization, HTTP status code alerts, server header information
- Pricing: Free
- Best for: Debugging redirect issues and verifying redirect implementations
Which Extension Should You Install?
- All-around SEO analysis: SEOquake (free) or Ahrefs toolbar (with subscription)
- Quick domain metrics: MozBar for DA/PA or Ahrefs for DR
- Keyword research while browsing: Keywords Everywhere or Ubersuggest
- On-page auditing: Detailed SEO Extension or SEO Minion
- Technical debugging: Redirect Path for status codes and redirects
Most SEO professionals install 2-3 extensions that complement each other. A common stack is one metrics toolbar (Ahrefs or MozBar), one keyword tool (Keywords Everywhere), and one on-page auditor (Detailed SEO Extension).