Lumina – SEO & GEO

All-in-one SEO toolkit: audit any page, check SERPs, research keywords, validate schema, analyze competitors — powered by AI & GSC.

Lumina SEO & GEO is a professional SEO analysis suite that replaces a dozen separate tools with one Chrome extension. Analyze any webpage in one click — get a complete SEO audit, check real Google SERPs, research keywords, validate structured data, and optimize content with AI. Whether you're an SEO consultant auditing client sites, a content marketer optimizing pages, or a developer checking technical SEO before launch — Lumina gives you everything directly in your browser. ASK AI — SEO COPILOT Ask any SEO question about the page you're on and get a data-backed answer. Lumina's AI agent works in four steps: it optimizes your question, decides what data to fetch (live SERP rankings, keyword volumes), checks if more information is needed, and then generates a focused analysis. Every answer cites specific data — GSC positions, keyword volumes, SERP rankings, heading text. No generic advice. Ask "Who ranks #1 for this keyword?" and get a SERP table with intent classification. Ask "Which GSC keywords have the best potential?" and get a prioritized list with metrics. Ask "Is my H-tag structure clean?" and get a technical audit with before/after fixes. Features: multi-turn conversation with history, follow-up question suggestions, edit and re-run previous questions, copy individual answers, stop generation mid-stream. Choose between GPT-4.1, GPT-4.1 Mini, o4-mini, and o3 depending on your speed and quality needs. SEO AUDIT & TECHNICAL ANALYSIS Open Lumina on any page and get an instant health check: title tag with character count and pixel-width measurement, meta description with length validation, canonical URL, robots directives, HTTP status, word count, language detection, and indexability status. The visual indexability bar shows green for indexable, yellow for canonical mismatches, and red for noindex — so you see the status at a glance. Go deeper with HTTP headers, security setup, performance metrics (TTFB, DOM Ready, Full Load), and hreflang validation with return-link checking. GOOGLE SEARCH CONSOLE INTEGRATION Connect your Google account securely with OAuth PKCE. Lumina loads real GSC performance data: an interactive multi-metric chart with clicks, impressions, CTR, and position over time. Toggle metrics by clicking KPI cards, choose time ranges, and compare periods with percentage deltas. Six advanced features are built in: Keyword Cannibalization detection, Winners & Losers tracking, Page Performance comparison, Low-Hanging Fruits identification, Keyword Discovery (cross-referenced with DataForSEO volumes), and Page Comparison. The URL Inspection API shows indexing status and last crawl date. KEYWORD RESEARCH A complete keyword research toolkit powered by DataForSEO with real Google Ads search volume data. Supports Austria, Germany, Switzerland, UK, US and 50+ countries. Enter seed keywords and get monthly search volume, CPC, competition level, keyword difficulty, search intent, and 12-month trend sparklines. Three research phases discover long-tail variations and related searches. Filter and sort results, copy to clipboard, or export as CSV. Define your target keywords — select a primary keyword and secondary keywords from your research results, then generate a data table with volumes, CPC, and GSC metrics. Copy as image or save as PNG for reports. SERP CHECKER See what Google actually shows for any keyword in any country. The SERP Checker uses the DataForSEO SERP API to fetch real-time search results including organic rankings, AI Overview, Featured Snippets, People Also Ask, Local Pack, Knowledge Panel, Videos, Images, Shopping, and 30+ SERP feature types. Each result shows the exact SERP position, domain, title, description with highlighted keywords, star ratings, and rich snippet data. A SERP Analysis summary tells you at a glance how competitive the search landscape is. Compare two keywords with the SERP Overlap Tool — with its own country, language, and device settings — to determine if they need separate pages or can be targeted together. SERP PREVIEW & SIMULATOR See exactly how your page appears in Google search results. The simulator matches Google's precise rendering: 652px desktop, 412px mobile. Edit title, description, and URL in real-time with pixel-based width counters. Toggle light/dark mode preview and drop shadow. Export as high-resolution PNG for client reports. AI-POWERED SEO TOOLS Six AI tools use the full page context — content, headings, meta tags, and GSC data — for genuinely useful recommendations: - Ask AI: Freeform SEO copilot with 4-step analysis agent, live data fetching, and conversation memory - Content Optimizer: Scores content 0–100 against target keywords with specific fixes - Meta-Tag Generator: Creates three optimized title/description variants with SERP previews - Competitor Analysis: Compare your page against up to three competitor URLs - SEO Localization: Translate and optimize your page for a new market with keyword mapping and SERP preview - FAQ Schema Generator: Extracts Q&A pairs and generates FAQPage JSON-LD SCHEMA VALIDATION Detects all structured data on the page (JSON-LD, Microdata, RDFa). Parses and validates each schema object against Schema.org types. An AI-powered check verifies that your structured data matches visible page content — catching mismatches that lead to rich result penalties. CRAWLER & BOT ANALYSIS See your page through the eyes of Googlebot, Bingbot, GPTBot, ClaudeBot, and other crawlers. Live server checks show HTTP status, redirect chains, response headers, and security headers. Robots.txt analysis shows which bots are allowed or blocked with the specific rule that applies. LINK ANALYSIS & BROKEN LINK CHECKER Full link inventory: internal vs. external count, nofollow links, anchor text, and destination URLs. The broken link checker tests every link and reports HTTP status codes. Visual on-page highlighting overlays colored borders directly on the live page — green for OK, yellow for redirects, red for broken. HEADINGS & SEMANTIC HTML View the heading hierarchy from H1 to H6. The semantic analysis scores usage of HTML5 elements (header, nav, main, article, section), detects deprecated tags, and checks accessibility landmarks. IMAGES, OPEN GRAPH & PERFORMANCE Image audit with alt text, dimensions, file size, and lazy loading status. Open Graph and Twitter Card previews show how the page appears on social media. PageSpeed Insights integration runs Core Web Vitals tests directly from the extension. PRIVACY & DATA Lumina analyzes pages locally in your browser. No data is sent to any Lumina server. API calls go directly from your browser to Google, OpenAI, and DataForSEO using your own credentials. Google authentication uses OAuth PKCE for maximum security. Lumina does not collect, store, or share user data. Light mode and dark mode. Customizable tab order. 10-second cache. CSV export, clipboard copy, and PNG image export for SERP previews and keyword tables.