SEOninja - AI Powered SEO Extension

Detailed SEO analysis tool for web pages

SEOninja is a lightweight, privacy‑first on‑page SEO analyzer. Audit any page with one click: titles, meta tags, headings, links, images, structured data, social cards, and CSS/JS resources. Everything runs locally in your browser (Manifest V3). Key featuresSummary: Indexability, canonical/robots, language, URL; title/meta length checks; H1–H6 counts. Headings: List, search, copy, and highlight H1–H6 directly on the page. Images: Alt‑text status, previews, broken image warnings; open or highlight in context. Links: Internal/external link lists with search, highlight, and open in new tab. Schema: Detect JSON‑LD, Microdata, RDFa; error spotting, export; open Google Rich Results Test and Schema.org Validator. Open Graph: OG + Twitter tags with live previews for Facebook, Twitter, LinkedIn. CSS/JS: Unused/large/render‑blocking detection; domain/type filters; SRI and mixed‑content checks; performance hints. DataLayer: Inspect dataLayer, digitalData, utag_data, adobeDataLayer with table/JSON views and instant search. Token Prediction (optional): Enter your OpenAI API key to explore next‑token probabilities and export results. Privacy & permissionsRuns fully client‑side; no sign‑up, no servers, no data leaves your browser. Uses activeTab, scripting, and storage only to analyze the page and remember preferences. Great forSEO specialists, content editors, developers, product teams, and QA who need fast, trustworthy on‑page checks without leaving the browser. Getting startedOpen any page, click the SEOninja icon, and explore the Summary, Headings, Images, Links, Schema, CSS/JS, Open Graph, DataLayer, and Token tabs.