Observed Signal · Jun 15, 2026 · Product Launch · Source: DEV Community · Impact: 1/5 · Sentiment: Positive
Free SEO + AI-Search (GEO) Audit Tool Released
Developer Ravi Gupta published a free, open-source SEO and AI-search (GEO) audit tool at freeseoaudit.vercel.app. The tool runs without signup or crawl limits and streams reports across 40+ checks in eight categories, including metadata, JSON-LD structured data, crawl & indexing, Core Web Vitals, security headers, and GEO/AEO-specific checks. GEO checks validate llms.txt, detect accidental blocking of AI crawlers (e.g., GPTBot, ClaudeBot, PerplexityBot), evaluate paragraph self-containment (the "Island Test"), and surface direct-answer and E-E-A-T signals. The app uses Next.js 15 and React 19 on Vercel, with a Node/Express TypeScript backend on Render and optional Playwright rendering; code is available on GitHub.
Release of a free, open-source SEO/GEO audit tool by an individual developer is useful to practitioners but is a niche product release and not industry-shifting.
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Key Takeaways & Evidence Grounding
- Ravi Gupta launched freeseoaudit.vercel.app: a free, open-source SEO + AI-search (GEO) audit tool with no signup or crawl limits.
- The tool streams reports over Server-Sent Events and performs 40+ checks across 8 categories (metadata, JSON-LD, crawl & indexing, Core Web Vitals, security headers, GEO/AEO, etc.).
- GEO-specific checks include llms.txt presence/spec conformance, detection of robots.txt rules blocking AI crawlers (GPTBot/ClaudeBot/PerplexityBot), the "Island Test" for citation-ready paragraphs, and direct-answer / E-E-A-T signal detection.
- Tech stack: Next.js 15 + React 19 on Vercel (frontend), Node + Express + TypeScript on Render (backend), SSRF-hardened crawler, optional Playwright rendering; results streamed via SSE.
- Source code is published on GitHub at github.com/ravigupta0210/seo-auditor.
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Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Free SEO + GEO AI Audit Tool Launched
Ravi Gupta published a free, open-source SEO and AI-search (GEO) audit tool (freeseoaudit.vercel.app) on June 15, 2026. The web tool requires no signup and places no crawl limits, streaming results for 40+ checks across eight categories including metadata, JSON‑LD structured data validation, crawl & indexing, Core Web Vitals, security headers, and a dedicated GEO/AEO section that targets AI citation readiness. GEO checks include llms.txt detection/spec conformance, robots.txt rules that may block AI crawlers (e.g., GPTBot, ClaudeBot, PerplexityBot), an "Island Test" for extractable paragraphs, direct-answer detection, and E‑E‑A‑T signals. The stack uses Next.js 15 and React 19 on Vercel with a Node/Express/TypeScript backend on Render, optional Playwright rendering, SSE streaming, and the source code is available on GitHub.
Grow Predictably Launches Free GEO Audit Tool
Grow Predictably launched a free GEO Audit tool that scores any URL for AI-search visibility across five Generative Engine Optimization (GEO) pillars — Authority, Readability, Structure, Answer Alignment, and AEO Extractability — in under a minute. The basic numeric scores and one-line per-pillar reasoning require no signup; entering an email unlocks detailed recommendations and prioritized improvement actions, which also helps Grow Predictably build a research database. Usage is rate-limited to three audits per visitor. The tool is part of Grow Predictably’s free-tools suite alongside LinkedIn Post Grader, Voice DNA Snapshot, and Rate My Funnel. Founder Brian Shelton framed the product as addressing limits of traditional SEO tools that were built for blue-link search and may miss signals used by generative engines when deciding which sources to cite.
Developer Releases Free Open-Source Browser SEO Checker
Adil Makhdoom published a free, open-source SEO checker that runs entirely in the browser and performs 20+ audits across technical SEO, on-page SEO, social/schema, and performance. The tool is distributed as three static files (index.html, style.css, script.js), requires no signup or API keys, and uses the allorigins.win CORS proxy to fetch page HTML client-side. Performance metrics (PageSpeed mobile score, LCP, CLS, TBT) are pulled from Google’s PageSpeed Insights API v5. Results show pass/warning/fail status, the measured value, and a short remediation tip; audits can be exported to CSV. The project is published with a live demo and a GitHub repository, and the author invites contributions and pull requests.
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