SEOquake

Browser Extension

Semrush'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.

Score breakdown

Composite Score

35.8

#3 of 5 in Browser Extension#91 of 508 overall

Feature Depth15.0

Ease of Use65.0

Data Quality0.0

Value for Money95.0

Integration15.0

Market Traction18.0

Our review

SEOquake is a free Chrome/Firefox extension by Semrush that shows SEO metrics directly in SERPs and provides on-page SEO audits. A quick-access tool for checking domain authority, backlinks, and page-level metrics while browsing.

Pros

✓Completely free Chrome extension with no account required
✓Shows SEO metrics directly in Google search results
✓Quick on-page SEO audit for any page
✓Links to Semrush for deeper analysis

Cons

—Surface-level metrics only — no deep analysis
—Data requires Semrush for the most useful insights
—Can clutter the SERP view if not configured

Best for

SEO professionals wanting quick SERP-level metrics while browsingMarketers evaluating competitor domains at a glanceAnyone wanting free on-page SEO audits in their browser

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

Price verified 2025-02-01 · USDView vendor pricing

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.

Capabilities

AI Visibility Metrics

—Share of Voice

—Sentiment Analysis

—Citation Tracking

✓Competitor Tracking

✓Position Ranking

—Trend Tracking

—Alert System

✓Content Recommendations

Content & Optimization

—Content Editor

—Content Generation

✓Content Audit

—Schema Generator

✓Site Audit

Entity SEO

—Internal Linking

Traditional SEO

—Keyword Rank Tracking

✓Mobile Rank Tracking

—Keyword Research

Technical & Integrations

—API

✓CSV Export

✓Chrome Extension

—WordPress Plugin

—Open Source

Deployment: cloud

Integrations

Semrush

How does SEOquake compare?

vs ahrefs-seo-toolbarCompare →vs mozbarCompare →vs seo-minionCompare →vs detailed-seo-extensionCompare →

View all comparisons →

aiseo.is Score

35.8

#3 of 5 in Browser Extension

Garrett SmithExpert reviewer

20+ yrs in SEO3+ yrs AI for SEO20K+ campaigns

Review Sentiment

G2★★★★½4.3

Overall★★★★½4.3

18 reviews across 1 source

People love

+Great browser extension for quick SEO data
+Easy to use
+Works well alongside SEMrush

Common complaints

–Lackluster compared to alternatives
–Less readable than Woorank
–Extension can slow down page load and browsing experience when active

🟠Reddit sentiment

positive

12 threads in SEO, website, marketing

Popular free browser extensionGood for quick SERP and on-page analysisOften compared with MozBar and Ahrefs toolbarUseful for beginners and budget-conscious users

“Back when I was using free tools, SEOquake + Semrush was good.”
r/SEO

“MozBar and SEOquake are great for quick SERP checks”
r/website

🔵𝕏 sentiment

positive

5 posts

Popular free Chrome extensionComprehensive SEO metrics and analysisFrequently recommended in top SEO tools listsFeatures include SERP analysis and keyword difficulty

“SEOquake SEO metrics, along with other useful tools such as SEO Audit. This tool is able to: → Review all major metrics → Do SERP Analysis instantly → Estimate keyword difficulty instantly → Complete SEO audit of a webpage”
@sharyph_

“New Post: SEOQuake Review 2025: Powerful Chrome Extension”
@stuartkerrs

Last updated Feb 2026

Quick Facts

CategoryBrowser Extension

Starting priceFree

Pricing modelFreemium

Free tierYes

Founded2006

HQBoston, MA

Parent co.Semrush

Websiteseoquake.com