Open-source AI GEO (Generative Engine Optimization) auditor — production-ready Next.js SaaS that checks how well landing pages are cited by AI search engines like ChatGPT, Perplexity, and Gemini. Free SEMrush & Surfer SEO alternative with Stripe, credits, NextAuth, Prisma.

Free, AI-friendly SEO auditor. 106 checks across 22 categories. Runs as a Claude Code skill, a CLI, or in your CI. Generates a polished 8-page PDF report. MIT-licensed.

SEO audit tool — analyze any webpage's indexing and semantic signals with score, built with NestJS and PostgreSQL

QAstro.js is a modular library for automatic accessibility and security linting of web pages. Easily extensible with new rules

FeedPulse organization profile

Mini product tour + install snippets for FeedPulse — 19 free embeddable widgets and 10 free SEO checkers. One-line HTML embed, no signup, no paid tier. Lighthouse 100/100/100/100.