SEOquake
Browser ExtensionSemrush's free browser extension for instant SEO metrics
Overview
SEOquake is Semrush's free browser extension that has been providing instant SEO metrics since 2006, making it one of the oldest and most established SEO toolbar tools. The extension overlays key SEO data directly onto search results and web pages, letting you assess domain authority, page metrics, and technical SEO factors without leaving your browser. While owned by Semrush, SEOquake operates independently and remains completely free as a lead generation tool for the parent platform.
The extension excels at quick competitive analysis and on-page auditing. When you search on Google, SEOquake displays a data bar under each result showing domain age, Google index status, and social metrics. Click any result and you get detailed page analysis including keyword density, internal/external link counts, and meta tag evaluation. This makes it particularly valuable for rapid competitor research and identifying optimization opportunities across multiple pages.
Unlike newer browser extensions that focus on specific metrics, SEOquake provides a comprehensive overview of both technical and authority signals. The tool pulls data from multiple sources including Google, social platforms, and Semrush's own database to give you a complete picture of any webpage's SEO health.
Key features
Instant SEO Metrics
Displays domain authority, page authority, age, and indexing status directly in search results and on any webpage.
SERP Overlay
Shows key SEO data for all results on Google search pages including metrics and social shares without clicking through.
Keyword Density Analysis
Analyzes keyword usage and density on any page with detailed breakdown of terms and their frequency.
Link Analysis
Examines internal and external links on any page with detailed metrics about link quality and destination authority.
On-Page SEO Audit
Provides quick assessment of title tags, meta descriptions, headings, and other on-page elements.
Export Functionality
Exports SERP data and page metrics to CSV format for further analysis and reporting.
Pricing
| Plan | Price | Includes |
|---|---|---|
| Free | $0 | SEO metrics, SERP analysis, keyword density, link examination, export capabilities |
FAQ
Is SEOquake completely free to use?
Yes, SEOquake is entirely free with no premium tiers or paid features. It's supported by Semrush as a lead generation tool.
Does SEOquake slow down browser performance?
SEOquake can slow page loading slightly since it fetches additional metrics for every page visited. Users can disable auto-loading for better performance.
What SEO metrics does SEOquake show?
It displays domain authority, page authority, Alexa rank, Google index status, social shares, and basic technical SEO elements.
Review Sentiment
18 reviews across 1 source
Bottom line
Hard to beat free. SEOquake is a genuine asset for SEO practitioners thanks to completely free Semrush-powered extension, though extension can slow down page load and browsing experience when active keeps it from replacing paid alternatives entirely.
People love
- +Completely free Semrush-powered extension with SERP overlay and on-page analysis
- +Keyword density analysis and internal/external link counts available on any page
- +Over 800,000 Chrome users with a 4.5-star Chrome Web Store rating
Common complaints
- –Extension can slow down page load and browsing experience when active
- –Data accuracy is limited compared to full Semrush subscription features
- –G2 profile inactive — unclear if extension is actively developed or maintained
Last updated Feb 2026