# Lumina SEO & GEO

> Free all-in-one SEO & GEO Chrome extension and web toolkit. On-page audits, AI crawler checks, schema validation, Google Search Console & GA4 dashboards, keyword research, and AI-powered content tools — all in one click.

## About

Lumina is a free Chrome extension and web-based SEO toolkit built by Julien El-Bahy. It provides comprehensive SEO analysis without requiring an account, tracking, or payment. Over 90% of features work instantly without API keys.

- Website: https://lumina-seo.com
- Chrome Extension: https://chromewebstore.google.com/detail/lumina-seo-geo/infdhcbgmealoflmoakmnecgngaeihoe
- Author: Julien El-Bahy (https://www.linkedin.com/in/julien-el-bahy-b4b71a201/)

## Free AI SEO Copilot

- [Ask AI — Free SEO Copilot](https://lumina-seo.com/ask-ai/): Free AI SEO tool that connects to live Google SERPs via DataForSEO, keyword volumes, your Google Search Console, AND your Google Analytics 4 property. Ask any SEO question and get data-backed answers from a 4-step reasoning pipeline (plan → fetch → reflect → answer). Unlike general AI chatbots, every answer is grounded in real, current data — no hallucinations. Includes GSC × GA4 cross-reference: find pages with high impressions but low conversions, compare traffic vs previous period, analyze landing page performance. 10 free questions per day, no account. Supports 63 countries and 39 languages. German version: https://lumina-seo.com/de/ask-ai/

## Free Dashboards (GSC + GA4)

- [Free SEO Dashboard (Hub)](https://lumina-seo.com/dashboards/): Free SEO reporting dashboard that combines Google Search Console and Google Analytics 4 in one clean UI. Cleaner than native Google, with an Ask AI button on every row. Read-only Google OAuth, no account.
- [Free Google Search Console Dashboard](https://lumina-seo.com/dashboards/gsc/): Free GSC dashboard with clicks, impressions, CTR, average position, top queries, top pages, winners, losers, low-hanging fruits (position 5-25 with high impressions), keyword cannibalization detection (queries ranking on 2+ pages), devices, and countries. Every row has an Ask AI button for data-backed follow-ups. 7d / 28d / 3m / 6m / 12m / custom date range.
- [Free Google Analytics Dashboard (GA4)](https://lumina-seo.com/dashboards/ga4/): Free GA4 dashboard with sessions, users, pageviews, engagement rate, average session duration, bounce rate, conversions, channels, top landing pages, sources, countries, devices, and conversion events. Every row has an Ask AI button for data-backed follow-ups. 7d / 28d / 3m / 6m / 12m / custom date range.
- German versions: https://lumina-seo.com/de/dashboards/ · https://lumina-seo.com/de/dashboards/gsc/ · https://lumina-seo.com/de/dashboards/ga4/

## Free Online Tools

### SEO Analysis
- [Snippet Preview](https://lumina-seo.com/tools/serp-preview/): Google SERP preview with pixel-accurate title & description measurement. AI-powered title and description generation.
- [Meta Tag Analyzer](https://lumina-seo.com/tools/meta-tag-analyzer/): Complete meta tag audit — SEO, headings, links, Open Graph, Twitter Cards, Schema, and technical tags.
- [Schema Validator](https://lumina-seo.com/tools/schema-validator/): JSON-LD structured data validator with 25+ schema types, Google Rich Results checks, and AI-powered fix suggestions.
- [Heading Checker](https://lumina-seo.com/tools/heading-checker/): H1-H6 hierarchy analyzer with SEO score, keyword check, duplicate detection, and AI heading optimizer.
- [OG Preview](https://lumina-seo.com/tools/og-preview/): Social media card preview for Facebook, Twitter/X, LinkedIn, WhatsApp, and Discord with OG tag validation.

### SERP & Keywords
- [Keyword Research](https://lumina-seo.com/tools/keyword-research/): Find related keywords with search volume, CPC, intent classification, SERP features, trend data, and AI clustering.
- [SERP Checker](https://lumina-seo.com/tools/serp-checker/): Check Google top 10 results for any keyword with SERP feature detection and domain highlighting.
- [SERP Overlap](https://lumina-seo.com/tools/serp-overlap/): Compare search results for two keywords with Venn diagram visualization and cannibalization score.
- [PAA Research](https://lumina-seo.com/tools/paa-research/): Extract Google People Also Ask questions with 4-level expansion, AI answer quality scoring, cluster by intent, prompt simulation vs AI engines, and auto-generate GEO-ready content briefs with FAQ schema (JSON-LD). Uses DataForSEO + GPT-4.1.

### Technical SEO
- [Tech Stack Detector](https://lumina-seo.com/tools/tech-stack/): Identify CMS, frameworks, analytics, and other technologies used on any website.
- [Security Headers](https://lumina-seo.com/tools/security-headers/): Analyze HTTP security headers (HSTS, CSP, X-Frame-Options, etc.) with scoring.
- [PageSpeed Insights](https://lumina-seo.com/tools/pagespeed/): Google PageSpeed Insights proxy with Core Web Vitals and performance metrics.
- [Redirect Checker](https://lumina-seo.com/tools/redirect-checker/): Follow redirect chains and detect redirect loops, mixed content, and status codes.
- [Link Analyzer](https://lumina-seo.com/tools/link-analyzer/): Analyze internal and external links, nofollow attributes, and anchor text distribution.

### Content & GEO
- [Word Counter](https://lumina-seo.com/tools/word-counter/): Count words, characters, sentences, paragraphs, and reading time for any URL.
- [Image SEO Checker](https://lumina-seo.com/tools/image-seo-checker/): Check ALT tags, file sizes, formats, lazy loading, and dimensions for all images on a page.
- [Semantic HTML](https://lumina-seo.com/tools/semantic-checker/): Analyze HTML5 semantic elements, landmarks, and accessibility structure.
- [JS vs No-JS](https://lumina-seo.com/tools/js-nojs/): Compare JavaScript-rendered vs non-JS content to understand what AI crawlers see.
- [Crawler Access Checker](https://lumina-seo.com/tools/crawler-access-checker/): Check which of 23 crawlers can access your site via robots.txt rules and live User-Agent checks.
- [llms.txt Generator](https://lumina-seo.com/tools/llms-txt-generator/): Generate llms.txt files for AI crawler guidance.
- [Hreflang Checker](https://lumina-seo.com/tools/hreflang-checker/): Validate hreflang tags, return links, self-references, and language codes.
- [AI Content Optimizer](https://lumina-seo.com/tools/ai-content-optimizer/): AI-powered content analysis with keyword optimization suggestions.

## Chrome Extension Features

The Lumina Chrome extension provides all of the above plus:
- On-page SEO audit with live SERP preview
- Indexation alarm badge (green/yellow/red icon)
- AI crawler access checking (24 bots including Google-Agent, GPTBot, ClaudeBot, PerplexityBot)
- llms.txt validation
- Schema JSON-LD deep validation with content matching
- Google Search Console dashboard
- Google Analytics 4 dashboard
- AI Traffic Dashboard
- Heading highlighting with color-coded badges
- Full-page screenshots (desktop, mobile, tablet)
- Local search simulation via UULE parameters
- Keyboard shortcuts (1-9 for tabs)
- Dark mode

## Blog

- [Google-Agent: What SEO Professionals Need to Know](https://lumina-seo.com/blog/google-agent-ai-crawler/): Google launched Google-Agent for AI-powered web interactions via Project Mariner. What it means for SEO and how to prepare.

## Languages

Available in English and German (Deutsch).
- English: https://lumina-seo.com
- Deutsch: https://lumina-seo.com/de/

## Privacy

All analysis happens locally in the browser. No backend server, no analytics, no tracking. API keys and OAuth tokens are stored locally in Chrome/browser localStorage.