Why it stands out: This free tool gives you an instant readout of key on-page elements like titles, meta descriptions, canonical tags, robots tags, and more. It can also export all links and image URLs, and preview Open Graph or Schema markup—all with a single click.TechRadarChrome Web Store
Best for: Quick, comprehensive on-page audits when you need immediate diagnostics.
Why it stands out: Provides live SEO metrics like domain authority, page authority, indexing data, keyword difficulty, backlinks, and search volume—right in search results and page overlays.hostadvice.com99signalsExtension Surfer
Best for: Efficient competitor research and SERP insights without leaving your browser.
Why it stands out: Displays meta tags, header structure, alt attributes, canonical URL, robots settings, links, and social/open graph tags all at once.99signalsExtension Surfer
Best for: Rapid visual impressions of a page's meta and structural elements—perfect for speedy optimization checks.
Why it stands out: Offers real-time keyword search volume, CPC, related keyword ideas, and content suggestions directly within the search results.TechRadar
Best for: On-the-fly keyword research and content brainstorming while browsing Google.
Why it stands out: An AI-powered tool delivering on-page health scores, GSC-integrated keyword performance, visual header navigation, alt text checks, link visuals, plus AI recommendations—all in one extension.Chrome Web Store
Best for: In-depth optimization with AI-driven insights and structured guidance, especially when speed and automation matter.
Why it stands out: Offers domain authority metrics (DA, PA), trust flow, backlinks overview, keyword positions, search volume, visit estimates, and PPC data—all in one tool.Chrome Web Store
Best for: Quick competitor and backlink data with clean visualization and metrics from Mangools' system.
Why it stands out: This free tool gives you an instant readout of key on-page elements like titles, meta descriptions, canonical tags, robots tags, and more. It can also export all links and image URLs, and preview Open Graph or Schema markup—all with a single click.TechRadarChrome Web Store
Best for: Quick, comprehensive on-page audits when you need immediate diagnostics.
Why it stands out: Provides live SEO metrics like domain authority, page authority, indexing data, keyword difficulty, backlinks, and search volume—right in search results and page overlays.hostadvice.com99signalsExtension Surfer
Best for: Efficient competitor research and SERP insights without leaving your browser.
Why it stands out: Displays meta tags, header structure, alt attributes, canonical URL, robots settings, links, and social/open graph tags all at once.99signalsExtension Surfer
Best for: Rapid visual impressions of a page's meta and structural elements—perfect for speedy optimization checks.
Why it stands out: Offers real-time keyword search volume, CPC, related keyword ideas, and content suggestions directly within the search results.TechRadar
Why it stands out: An AI-powered tool delivering on-page health scores, GSC-integrated keyword performance, visual header navigation, alt text checks, link visuals, plus AI recommendations—all in one extension.Chrome Web Store
Best for: In-depth optimization with AI-driven insights and structured guidance, especially when speed and automation matter.
Why it stands out: Offers domain authority metrics (DA, PA), trust flow, backlinks overview, keyword positions, search volume, visit estimates, and PPC data—all in one tool.Chrome Web Store
Best for: Quick competitor and backlink data with clean visualization and metrics from Mangools' system.
Best for: On-the-fly keyword research and content brainstorming while browsing Google.