SEO GitHub Repositories (2026) · Open Source Tools

A better whois and domain intelligence toolkit

GEO Optimizer, the open-source engine behind GeoReady (geoready.dev): audit whether ChatGPT, Perplexity, Gemini & Google AI Overviews cite your site. CLI, Python, MCP.

Stack-agnostic Claude Skills covering the full website lifecycle: brand, design, content, SEO, dev, ops, growth, and research. Build, ship, audit, optimize.

Sitemap Module for Nuxt 2

Collection of useful integrations & components for the Astro ecosystem. ⭐️ Star to support our work!

🔍 Google SEO's full docs as an AI prompt machine — drop it into your AI assistant to map every public route, audit each page against Google's rules, and fix the gaps step by step.

Remember a visitor's original referer

Enable or disable the indexing of your app

Run Google Lighthouse using PHP

Notra is a modern GEO tool that asks ChatGPT, Claude and Gemini the questions your buyers ask. See if you show up, who shows up instead and how to fix it.

⚒️ Open-source game wiki template. Astro + Cloudflare Pages. Free, fast, beginner-friendly. Static-first, zero-JS, AI-native content workflow, unlimited bandwidth.

Junk-free, 300+ directories, launch sites, newsletters, communities, subreddits and marketplaces to submit your startup, with Domain Rating, traffic and pricing. Synced weekly from submitlist.io.

A high-performance website crawler built for serious SEO audits. Targets 1M+ URLs on a single machine, with a dense Screaming Frog–style UI, 200+ SEO issue checks, and zero native dependencies.

Agent Skills that convert a WordPress site (or any live site) into a static Astro site with URL, SEO, content and pixel parity, then take it through launch. Works in Claude Code, Codex and any agent that reads SKILL.md.

Open-source skills for Claude Code and Codex, with an MCP server, a PyPI package and Suede Awesome Everything, a directory that scores AI agent skills 0 to 99. Created by Jason Colapietro, founder and CEO of Suede AI.

Self-hosted Google search scraper for Python. Scrape Google SERP results with a real Chrome browser and your own residential proxy. Self-hosted SERP API alternative with JSON output, an HTTP API and an MCP server for AI agents.

WordLift brings the power of Artificial Intelligence to beautifully organize content. Attract new readers and get their true attention.

Open-source, self-hosted rank tracker and AI-visibility monitor built on the DataBlue SERP API. Bring your own key. AGPL-3.0.

Integrated online shop based on Laravel and the Aimeos e-commerce framework for ultra-fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce

Free SEO Audit MCP server for Claude - captures and stores all the raw data you need for a complete technical SEO audit. Google Search Console + a first-party crawl + DataForSEO + Majestic SEO merged into one prioritised audit.