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

About

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!