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Monitor competitor website changes weekly with GPT-4.1-mini and Gmail

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Monitor competitor website changes weekly with GPT-4.1-mini and Gmail preview
Open on n8n.io

1. Workflow Overview

How it works Runs automatically on a weekly schedule and fetches the live HTML of every competitor page you define Strips all HTML tags and captures a clean text snapshot of each page Compares the ...

Best for

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

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.scheduletrigger, n8n-nodes-base.code, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.gmail

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title
Monitor competitor website changes weekly with GPT-4.1-mini and Gmail
Workflow name
Monitor competitor website changes weekly with GPT-4.1-mini and Gmail

How it works

  • Runs automatically on a weekly schedule and fetches the live HTML of every competitor page you define
  • Strips all HTML tags and captures a clean text snapshot of each page
  • Compares the current snapshot against the previously stored version using workflow static data — no external database needed
  • Sends only changed pages to GPT-4.1-mini, which analyses differences across pricing, positioning, product launches, and feature updates
  • Formats the AI analysis into a structured digest with an executive summary, material changes per competitor, suggested response actions, and watch items for next run
  • Saves the digest as a Gmail draft addressed to your chosen recipient — ready to review and forward to your team

Set up steps

  • Open the Define Competitors node and replace the example entries with your competitor names, URLs, and what to watch for (e.g. pricing, features, messaging)
  • Open the Build Digest Prompt node and replace [email protected] with your recipient's email address
  • Connect your OpenAI credential to the OpenAI node (GPT-4.1-mini or higher recommended)
  • Connect your Gmail OAuth2 credential to the Gmail node
  • Run the workflow once manually to store the first baseline snapshots — no digest will be sent on this first run
  • Activate the workflow — it will now run every week and only alert you when something has actually changed

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 - Setup Note

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

Block 2 - Weekly Schedule

Type / Role
n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices
Version 1.3

Block 3 - Define Competitors

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

Block 4 - HTTP - Fetch Competitor Page

Type / Role
n8n-nodes-base.httpRequest - httpRequest
Config choices
Version 4.2

Block 5 - Track Snapshot Changes

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

Block 6 - Build Digest Prompt

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

Block 7 - OpenAI - Summarize Competitor Changes

Type / Role
@n8n/n8n-nodes-langchain.openAi - openAi
Config choices
Version 1.4

Block 8 - Format Digest Email

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

Block 9 - Gmail - Draft Digest

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

Block 10 - Sticky Note

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

Block 11 - Sticky Note1

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

Block 12 - Sticky Note2

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

3. Summary Table

Workflow Monitor competitor website changes weekly with GPT-4.1-mini and Gmail
Complexity intermediate
Nodes 12
Categories Market Research, AI Summarization
Author Meet Soni
Published 01 May 2026

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/15429/15429.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

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

  4. 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. 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.

Frequently asked questions

What does Monitor competitor website changes weekly with GPT-4.1-mini and Gmail do?

How it works Runs automatically on a weekly schedule and fetches the live HTML of every competitor page you define Strips all HTML tags and captures a clean text snapshot of each page Compares the ...

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.