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Open source alternative to Semrush and Ahrefs
aaron-he-zhu
20 SEO & GEO skills for Claude Code, Cursor, Codex, and 35+ AI agents. Keyword research, content writing, technical audits, rank tracking. CORE-EEAT + CITE frameworks.
JustinBeckwith
Broken link checker that crawls websites and validates links. Find broken links, dead links, and invalid URLs in websites, documentation, and local files. Perfect for SEO audits and CI/CD.
serpapi
Curated list of awesome SEO tools
searchsolved
SEO Python scripts and Apps by Lee Foot
melbahja
🐘 Simple PHP library to help developers 🍻 do better on-page SEO optimization 🤖
akvise
Python CLI for Google Trends analysis with advanced rate limiting, cookie auth, and beautiful terminal output. Built on pytrends with enterprise features.