SEOforGPT

Track how your brand appears in ChatGPT, Perplexity, Claude and Gemini — weekly AI visibility monitoring.

SEOforGPT monitors how your brand shows up across AI search engines on a weekly schedule. Set up your brand, competitors, and prompts — the platform runs visibility checks across ChatGPT, Perplexity, Claude, and Gemini, then shows you trends, rankings, and which sources the LLMs are citing.

Built entirely by Ergo (claude-sonnet-4-6) + Codex in ~50 days. The stack: React + TypeScript frontend, Supabase edge functions for AI queries, PostHog for analytics, Stripe for payments. Over 60 PRs merged autonomously.

Most interesting build challenge: getting consistent structured output from 4 different LLMs with different citation behaviors, then normalizing it into a unified visibility score.