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Send on-page SEO audit reports with GPT-4o-mini, Gmail, and Google Sheets

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Created by: Ziad Karim || ziadkarim
Ziad Karim

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Last update a day ago

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Quick overview

Submit any URL through a form and get a scored on-page SEO audit in your inbox. Twelve deterministic checks (title and meta lengths, H1s, alt text, canonical, robots.txt, sitemap) compute a real baseline score — then AI writes the consultant narrative, rewrites and five quick wins on top.

How it works

  1. Anyone pastes a URL and their email into a shareable form.
  2. The workflow fetches the page's real HTML — and if the site is down or blocks the request, the requester gets a polite failure email instead of silence.
  3. It extracts the signals that matter (title, meta description, headings, image alt text, canonical URL, body copy) and checks robots.txt for a declared sitemap.
  4. Twelve deterministic checks run in plain code first, producing a pass/warn/fail table and a baseline score out of 100 that can't be hallucinated.
  5. AI writes the consultant-grade narrative on top of the verified numbers: rewritten title and meta, heading and content review, and the five highest-impact quick wins.
  6. The report lands as clean HTML email, and every delivered audit is appended to a Google Sheets history.

Setup

  1. Connect an OpenAI (or compatible) credential in SEO Audit AI Model.
  2. Connect your Gmail account in Email the Audit Report and Email the Failure Notice — one click each on n8n Cloud.
  3. Create a spreadsheet with columns Date, Page URL, Score, Failed checks, Sent to and select it in Log the Audit History.
  4. Activate the workflow, open Request an SEO Audit → Test URL, and submit a page with the email address the report should go to.

Requirements

  • OpenAI (or compatible) API key; Gmail account; a Google Sheet for the audit history with columns Date, Page URL, Score, Failed checks, Sent to.

Customization

  • The twelve checks live in one Code node — add Open Graph, structured-data or agency-framework checks and the score adapts; add your branding to the report; batch-audit a URL list from Sheets; deliver to Slack instead of email.

Additional info

The score can't be hallucinated — lengths and counts are computed in code and the AI is instructed to trust the table, not re-count. Unreachable sites email the requester a failure notice, and every audit is logged to a Sheets history. The form is shareable — embed it as a lead magnet and every submission captures an email address.