n8n Workflow: Audit Prospect Websites & Export HTML Reports

Instant technical SEO auditing of prospect sites—delivered as an HTML report

This n8n workflow automatically audits a prospect’s website by extracting raw HTML with Bright Data Web Unlocker, checking key on-page and technical SEO signals, and generating a downloadable HTML report with an OpenAI-written summary.

What this workflow does

• Starts from an n8n Form submission where you enter the prospect domain and your agency name.
• Builds a small URL list to audit (the homepage plus configured paths).
• Fetches raw HTML for each page using Bright Data Web Unlocker.
• Parses and audits technical SEO signals from the raw HTML, including:
  • Title tag length
  • Meta description
  • Canonical
  • H1 count
  • Viewport presence
  • Meta robots
  • Image alt coverage
  • Structured data
  • Mixed-content references
  • Basic word count
• Fetches and parses robots.txt via Bright Data to detect high-impact blocking rules and any declared sitemap.
• Aggregates results across all pages, calculates pass/fail counts and an overall score.
• Uses OpenAI (GPT-5.6) to write a 60–100 word opening summary from only the rolled-up findings.
• Creates a self-contained HTML audit report, upserts the site record into an n8n Data Table, and returns the report as a .html download.

Use cases

• SEO agencies running consistent technical SEO audits for new leads.
• SaaS operators validating SEO readiness during onboarding or website migrations.
• Automation engineers needing a repeatable workflow that produces client-ready HTML exports.

Technical details

• Integrations/Credentials: Bright Data Web Unlocker (Header Auth) + OpenAI credential for GPT-5.6.
• n8n nodes mentioned: Form Trigger, Set, Code, Data Table, Form, Sticky Note.
• Outputs: rolled-up audit metrics, a downloadable HTML report, and stored results in an n8n Data Table.