WorkflowTools

How to Build a Website Audit Tool Using WordPress and n8n (No-Code Workflow)

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Are you looking to build a powerful website audit application without coding? With WordPress as your frontend and n8n as your backend, you can create a dynamic, automated website audit tool that collects URLs, runs performance checks, and delivers reports — all without writing a line of backend code.

In this step-by-step tutorial, we’ll show you how to create a Website Audit Workflow Application using WordPress and n8n.

🔍 Why Use WordPress and n8n?

  • WordPress: The most popular CMS, ideal for user-friendly frontends and form submissions.
  • n8n: A powerful workflow automation tool that can run backend logic, interact with APIs, and send emails — all visually.

Together, they form the perfect stack for building automated tools like website checkers, SEO audits, and performance reviews.

🧩 What You’ll Need

  • A WordPress website (self-hosted or hosted)
  • A form plugin like WPForms, Fluent Forms, or Contact Form 7
  • A running instance of n8n (self-hosted or via n8n.cloud)
  • Optional: API keys for tools like Wappalyzer, URLScan, or Lighthouse CI

🛠 Step-by-Step: Build a Website Audit Workflow

1. Set Up the WordPress Frontend

✅ Install a Form Plugin

Choose a plugin that supports Webhook integration:

  • WPForms (Pro users can install the Webhooks Addon)
  • Fluent Forms (Free webhook support is currently available in Pro version only)
  • Contact Form 7 (Use with an add-on like “CF7 to Webhook” in Free Versions)

📝 Create a URL Submission Form

Design a simple form with these fields:

  • Website URL (Required)
  • Email Address (Optional, for sending the report)

Configure the confirmation message to say something like:

“Thanks! Your website audit is in progress. You’ll receive the results shortly.”

🔗 Add Webhook Integration

Set the form to POST the submitted data to your n8n webhook URL (you’ll create it next).

2. Build the Audit Workflow in n8n

🌐 Create a Webhook Node

  1. Go to your n8n dashboard
  2. Add a Webhook node
  3. Set:
    • HTTP Method: POST
    • Path: /website-audit
    • Respond: Immediately

This is the endpoint your WordPress form will send data to.

🧼 Clean and Validate Input

Use a Function node to:

  • Ensure the URL has the proper format
  • Add https:// if missing

⚙️ Run Audit Tools

Use n8n’s nodes or connect to external APIs:

  • HTTP Node: Check if the site is reachable
  • Wappalyzer API: Detect CMS, technologies used (Requires a paid plan)
  • Lighthouse CI: Perform SEO, accessibility, and performance audits
  • URLScan API: Take a snapshot of the site and extract metadata
  • WHOIS Lookup: Get domain registration data

💡 Pro Tip: Use environment variables in n8n to store your API keys securely.

🗂 Generate and Store Report

Choose how to present the results:

  • Save as Markdown or HTML
  • Convert to PDF using an external API
  • Store in Google Sheets, Airtable, or Notion

To enhance the audit workflow described in this post, you can add an n8n AI Agent Node to automatically format the output report before it is delivered to website owners or clients. By integrating this node, audit results generated from tools like Lighthouse, Wappalyzer, or WHOIS lookups can be processed by the AI Agent, which restructures the raw data into a well-organized, human-readable report. The AI Agent Node applies custom formatting such as section headers, bullet points, summary highlights, and tailored recommendations, ensuring that the final report is professional and easy to understand. This approach streamlines communication, saves manual effort, and provides consistently branded output for every audit delivered through your WordPress and n8n no-code workflow.

    ✉️ Send the Report (Optional)

    Add an Email node:

    • To: user’s submitted email
    • Subject: “Your Website Audit Report”
    • Body: Include audit summary and link to download the report

    ✅ Send Response Back to WordPress

    Return a simple JSON confirmation using a Webhook Response node:

    {
  "message": "Website audit started. You'll receive your report shortly."
}

    3. Test and Deploy Your Application

    1. Submit a test URL via your WordPress form
    2. Watch the n8n workflow get triggered
    3. Monitor logs and verify that the report is sent or stored

    Once everything works, activate your n8n workflow and go live!

    🔐 Optional: Add Security and Custom Features

    • Secure your Webhook: Add a secret token and verify it in n8n
    • Rate Limiting: Prevent spam or abuse
    • Custom Reports: Display audits in the user’s WordPress dashboard
    • Recurring Audits: Schedule automated checks with a Cron node

    🖼 Visual Workflow Summary

    [WordPress Form]
       ↓

    [n8n Webhook Node]

    ↓ [Validate URL] → [Run Audits] → [Generate Report] → [Email or Store Result] ↓ [Respond to Frontend]

    🎉 Final Thoughts

    By combining the ease of WordPress with the automation power of n8n, you can build a scalable, no-code Website Audit Tool that performs real-time checks, sends reports, and boosts user engagement — all from your own domain.

    Want Help Setting It Up?

    Need a ready-to-import n8n workflow or help embedding the WordPress form? Just drop a comment below or contact us — we’re happy to help!