Technical SEO audits with GPT-4o-mini & multi-format reporting (Sheets/Email)

Instantly map all internal URLs, perform AI-powered (ChatGPT) analysis, and deliver results in HTML via webhook, Google Sheets, or email. All from your own n8n instance! --- 💡 Why this workflow? Forget expensive tools: Run deep, visual audits replacing Screaming Frog or Ahrefs. Real URL mapping: Reads the sitemap, filters only internal URLs, and analyzes each one individually. AI-powered analysis: ChatGPT detects critical issues, recommendations, and best practices on every page. Error handling: The workflow includes robust error handling and guides you on what to do in each case. Client-ready results: Receive a professional HTML report, an email summary, or push it to Google Sheets for team collaboration. Automate by webhook or manually: Use it in backend integrations or trigger with a button. --- 🧠 What does the workflow do? 1. Automatically detects the sitemap (robots.txt → sitemap.xml). 2. Filters only internal URLs (ignores assets, images, scripts, etc). 3. Fetches the full HTML content of each URL. 4. Uses ChatGPT (GPT-4o-mini) for professional diagnostics (meta tags, headings, hreflang, Open Graph, links, duplicate content, etc). 5. Groups results (critical issues, recommendations, best practices) and presents them as: 📄 Professional HTML report (ready to send/share) 📊 Google Sheets (collaborative structure) 🔗 Webhook or HTML email (for automation) --- 🛠️ Technologies / APIs Used n8n (self-hosted or cloud instance required) ChatGPT API (required, approx. cost: €0.01 per 20 URLs analyzed) Google Drive/Sheets API (only for Google Sheets output) Email SMTP/Gmail (for notifications) --- ⚡ Who should use it? SEOs and agencies needing technical reports in minutes Freelancers automating client SEO audits Web developers and growth hackers Website owners/businesses with multiple sites --- 🎯 Problems solved Slow, manual SEO auditing Dependence on expensive SaaS Lack of full-site coverage → every URL is checked with actionable recommendations Fast, visual delivery to clients (HTML “copy-paste” report and/or collaborative sheet) --- 📝 Quick Setup 1. Import the .json into your n8n. 2. Add your credentials: OpenAI (ChatGPT) API Key Google account (only for Google Sheets output) 3. Run manually or via webhook (you can pass the URL as a parameter). 4. View the results in the generated HTML, Google Sheets, or your email. --- 💡 Details & Tips Enter only the domain (e.g., example.com) — no https:// and no trailing slash. If any error occurs (unusual sitemap, robots blocked, etc.), the messages are explained clearly. You can change the analysis language (default: Spanish). 100% customizable and extendable for other outputs (Notion, Slack, etc). --- 📦 What’s included? 🧩 n8n workflow file → SEO n8n.json 📘 Quick install guide (README) 💬 Direct support: [email protected](mailto:[email protected]) 📸 More info and photos: [email protected](mailto:[email protected])