SEOquake is a free plugin for your browser that provides you with organic research data at the click of a button. Currently compatible with Mozilla Firefox, Google Chrome, and Opera, SEOquake can provide parameters for listings within search engine results. Along with organic research data, SEOquake provides other useful tools including an SEO Audit, Keyword Density report, Internal/External Link analysis, and even social metrics.

Reference

• Official Website
• Official Website | Guide
• Official Website | Blog

Tutorial

• SEOquake – What Is SEOquake
• SEOQuake: SEO Tool for Analyzing Keyword Competition on Google