Audit web pages for SEO issues with Decodo, GPT-4 and Google Sheets

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

What this workflow does This workflow automatically audits web pages for SEO issues and generates an executive friendly SEO report using AI. It is designed for marketers, founders, and SEO teams wh...

Best for

Market Research automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.lmchatopenai, @decodo/n8n-nodes-decodo.decodo, n8n-nodes-base.splitinbatches, n8n-nodes-base.code, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.googlesheets

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Kevin Meneses .

Original n8n.io source

1.1 Workflow description

Title: Audit web pages for SEO issues with Decodo, GPT-4 and Google Sheets
Workflow name: Audit web pages for SEO issues with Decodo, GPT-4 and Google Sheets

What this workflow does

This workflow automatically audits web pages for SEO issues and generates an executive-friendly SEO report using AI.

It is designed for marketers, founders, and SEO teams who want fast, actionable insights without manually reviewing HTML, meta tags, or SERP data.

The workflow:

Reads URLs from Google Sheets

Scrapes page content using Decodo (reliable scraping, even on protected sites)
Extracts key SEO elements (title, meta description, canonical, H1/H2, visible text)
Uses an AI Agent to analyze the page and generate:

Overall SEO status
Top issues
Quick wins
Title & meta description recommendations
Saves results to Google Sheets
Sends a formatted HTML executive report by email (Gmail)

Who this workflow is for

This template is ideal for:

SEO consultants and agencies

SaaS marketing teams

Founders monitoring their landing pages

Content teams doing SEO quality control

It focuses on on-page SEO fundamentals, not backlink analysis or technical crawling.

Setup (step by step)

1. Google Sheets

Create an input sheet with one URL per row

Create an output sheet to store SEO results

2. Decodo

Add your Decodo API credentials

The URL is automatically taken from the input sheet 👉 Decodo – Web Scraper for n8n

3. AI Agent

Connect your LLM credentials (OpenAI, Gemini, etc.)

The prompt is already optimized for non-technical SEO summaries

4. Gmail

Connect your Gmail account

Set the recipient email address

Emails are sent in clean HTML format

Notes & disclaimer

This is a community template

Results depend on page accessibility and content structure

It focuses on on-page SEO, not backlinks or rankings

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - When clicking ‘Execute workflow’

Type / Role: n8n-nodes-base.manualTrigger - manualTrigger
Config choices: Version 1

Block 2 - 📝 OVERVIEW

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - 📝 DECODE NOTE

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - 📝 AI AGENT NOTE

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - 📝 PARSE & REPAIR

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.3

Block 7 - Decodo

Type / Role: @decodo/n8n-nodes-decodo.decodo - decodo
Config choices: Version 1

Block 8 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - Process URLs one by one

Type / Role: n8n-nodes-base.splitInBatches - splitInBatches
Config choices: Version 3

Block 12 - Extract SEO Elements from HTML

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 13 - Generate AI SEO Executive Summary

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3

Block 14 - Parse & Validate AI JSON Output

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 15 - Save SEO Report to Google Sheets1

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 16 - Send SEO Report by Email

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.2

Block 17 - Fetch URLs from Google Sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

3. Summary Table

Workflow	Audit web pages for SEO issues with Decodo, GPT-4 and Google Sheets
Complexity	advanced
Nodes	17
Categories	Market Research, AI Summarization
Author	Kevin Meneses
Published	01 Dec 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/11402/11402.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Market Research workflows AI Summarization workflows

Frequently asked questions

What does Audit web pages for SEO issues with Decodo, GPT-4 and Google Sheets do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Market Research, AI Summarization use case.

Kevin Meneses

9 workflows

Nodes

n8n-nodes-base.manualtrigger n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.lmchatopenai @decodo/n8n-nodes-decodo.decodo n8n-nodes-base.splitinbatches n8n-nodes-base.code @n8n/n8n-nodes-langchain.agent n8n-nodes-base.googlesheets

Complexity

advanced

Published 01 Dec 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/11402/11402.json

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Audit web pages for SEO issues with Decodo, GPT-4 and Google Sheets

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What this workflow does

Who this workflow is for

Setup (step by step)

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When clicking ‘Execute workflow’

Block 2 - 📝 OVERVIEW

Block 3 - 📝 DECODE NOTE

Block 4 - 📝 AI AGENT NOTE

Block 5 - 📝 PARSE & REPAIR

Block 6 - OpenAI Chat Model

Block 7 - Decodo

Block 8 - Sticky Note

Block 9 - Sticky Note1

Block 10 - Sticky Note2

Block 11 - Process URLs one by one

Block 12 - Extract SEO Elements from HTML

Block 13 - Generate AI SEO Executive Summary

Block 14 - Parse & Validate AI JSON Output

Block 15 - Save SEO Report to Google Sheets1

Block 16 - Send SEO Report by Email

Block 17 - Fetch URLs from Google Sheet

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions