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[ARTICLE · art-27610] src=dev.to ↗ pub= topic=developer-tools verified=true sentiment=↑ positive

I built a free SEO + AI-search (GEO) audit tool — no signup, no limits

A developer built a free SEO and generative engine optimization (GEO) audit tool called freeseoaudit.vercel.app. The tool performs over 40 checks across 8 categories, including GEO-specific checks for AI answer citations, and runs on free tiers using Next.js 15, React 19, Node, Express, and TypeScript. It requires no signup and has no crawl limits.

read1 min publishedJun 15, 2026

I kept hitting the same wall: every SEO tool either paywalls the useful parts or caps you at a few pages. So I built a free one —

** freeseoaudit.vercel.app**. No signup, no crawl limit, open source.

What it checks #

Paste any URL and it streams a report across 40+ checks in 8 categories:

Why GEO/AEO? #

Search is splitting in two. Classic SEO gets you blue-link rankings; GEO (Generative Engine Optimization) gets you cited

inside AI answers — ChatGPT, Perplexity, Google AI Overviews. The two now share under 20% of their winners.

So it checks things most SEO tools ignore:

llms.txt

presence + spec conformance## Stack

Next.js 15 + React 19 on Vercel; Node + Express + TypeScript on Render. SSRF-hardened crawler, optional Playwright rendering,

results streamed over SSE. Runs entirely on free tiers.

Try it #

freeseoaudit.vercel.app — paste your site and see. Free, stays free. Feedback very welcome,

especially on the GEO checks — useful or gimmick?

source & further reading
dev.to — original article Dev Log: deleting code and breaking the build on purpose Overwhelmed by Overengineering in Project Tracking Tools. The Result? I Built a Lightweight, Local-First Project Tracker. Why Your Gemini Bill Doesn't Match the Model Names
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