SEO Audit, Schema & H-Tag Validator (Optimax AI)

Visualize H-tag structures, validate Schema JSON-LD, and fix Meta tags with local AI. A 100% private, all-in-one technical SEO audit

Stop guessing. Start ranking. The first privacy-focused SEO Audit tool with Gemini AI. Transform your browser into a professional SEO laboratory. Optimax AI (formerly H-Tag Highlighter) goes beyond basic checking. It visualizes your site's architecture, validates complex Schema markup, and helps you rewrite content using on-device AI—all without sending a single byte of data to external servers. 🔥 CORE MODULES & FEATURES: 1. 📄 Interactive H-Tag Tree Map Stop reading code. Visualize it. Our exclusive Tree View maps your H1-H6 hierarchy with connecting lines, making it instant to spot: Broken semantic structures. Missing H1 tags. Incorrect nesting (e.g., H2 jumping to H4). As seen in screenshots: The clean, tree-line connected view makes structure auditing effortless. 2. ℹ️ Meta Tags & Social Preview See what Google and Facebook see. Smart Validation: Color-coded "Good", "Too Short", or "Too Long" badges tell you instantly if your Title or Description needs work. Social Preview: Instantly preview your og:image and Twitter Cards exactly as they appear in social feeds. AI Writer: Use the built-in "Improve with AI" button to auto-generate high-CTR descriptions locally using Gemini Nano. 3. 🧩 Schema Markup Validator Debug Structured Data without leaving the page. Auto-detects JSON-LD schema (FAQ, Article, Product, etc.). Validates syntax and allows one-click copying for Google's Rich Results Test. 4. 🚀 Core Web Vitals HUD Pass Google’s Page Experience update. Monitor real-time metrics for LCP (Largest Contentful Paint), CLS (Layout Shift), and INP (Interaction to Next Paint) directly in your browser. 5. 🕵️ Keyword & Content Spy Analyze competitor strategies in seconds. Extract the top keywords by density and uncover their content focus. 6. 🛡️ 100% Private & Local Most SEO extensions send your data to the cloud. We don't. No Account Required. No API Keys needed. No Data Tracking. Everything runs locally in your Chrome browser. 7. 🛠️ Pro Tools Suite Link Integrity: Find broken 404 links instantly. Image Audit: Highlight images missing alt text for accessibility. Contrast Checker: Ensure text meets WCAG readability standards. Bulk Export: Download your full audit report as a clean CSV file. Who is this for? SEO Professionals needing quick, non-intrusive audits. Developers debugging heading structures and Schema JSON-LD. Content Creators optimizing meta tags for higher click-through rates. Version 8.2 Update: New Material Design 3 Interface. Added Social Graph Previews. Enhanced Heading Tree Map connectors. Get the tactical advantage in search. Download Optimax AI today!