Regular interface enhancements and deeper SEMrush integration; occasional availability notices on Chrome extension store; officially supported across major browsers
Network
Uses live page-level SEO data, integrates optional SEMrush data, shows SERP overlay metrics, internal/external link data, Google/Bing indices, keyword density, and social signals
Official Provider
SEOquake (originally developed by SEMrush integration team), available for Chrome, Firefox, Opera, Edge; headquartered in Russia since 2006
Free and Accessible: SEOquake is a free browser extension, making it accessible to beginners and those on a budget.
Quick Insights: Provides instant access to essential SEO metrics directly from your browser, eliminating the need to switch between different tools.
On-Page Audits: It offers detailed reports on meta tags, headers, and other on-page elements, helping identify areas for improvement.
Keyword Density Analysis: Evaluates keyword density within content, highlighting overused or underutilized terms.
Link Analysis: Provides insights into internal and external links, including anchor text and link types.
Competitor Comparison: The SERP Overlay feature allows for quick competitor research by displaying key metrics directly on the search engine results page.
Customizable: Users can tailor the extension to display only the metrics most relevant to their goals.
Wide Browser Compatibility: Works across multiple browsers (Chrome, Firefox, Opera).
Cons
Limited Advanced Features: It lacks the depth and comprehensive tools offered by advanced SEO suites like Ahrefs or SEMrush.
Basic Backlink Analysis: While it provides information on the number of internal and external links, it’s not designed for in-depth backlink research or analyzing competitor link-building strategies in detail.
Can Be Overwhelming for Beginners: The sheer volume of data can be overwhelming for those new to SEO, potentially leading to misinterpretation or confusion.
Performance Impact: It may occasionally cause browser performance issues or slow down browsing, particularly on older devices or with multiple extensions enabled.
Limited Keyword Research: Lacks features like keyword search volume and keyword difficulty analysis found in dedicated keyword research tools.
Not a Replacement for Comprehensive Tools: It’s best suited for quick audits and basic SEO tasks rather than complex campaigns or detailed analysis.