Who is this workflow for? Automate the detection of visual changes in your webpages with this n8n workflow. By leveraging Apify for screenshot capture and a multimodal Large Language Model (LLM) for analysis, this workflow systematically compares webpage snapshots taken at different times to identify visual regressions. This streamlined process ensures your website maintains its intended appearance and functionality over time..

What does this workflow do?

  • Webpage Listing: Begin by maintaining a list of target webpages within a Google Sheet. This serves as the foundation for which screenshots will be captured and monitored.
  • Initial Screenshot Capture: Utilize Apify, a robust web scraping service, to take baseline screenshots of each listed webpage. These images are then uploaded to Google Drive for secure storage and future reference.
  • Scheduled Monitoring: Set up a scheduled trigger within the workflow to initiate periodic screenshot captures. This ensures that fresh images are regularly taken to compare against the baseline.
  • Parallel Download and Comparison: Retrieve both the base and newly captured screenshots from Google Drive simultaneously. These paired images are then sent to the LLM node within n8n.
  • AI-Powered Analysis: Configure the LLM node to accept both images as binary inputs. The multimodal LLM processes these images, identifying and detailing any visual differences based on predefined testing criteria.
  • Reporting: Compile the findings from the LLM analysis into a comprehensive report. This report is automatically uploaded to Linear, facilitating easy tracking and management of any detected regressions.

🤖 Why Use This Automation Workflow?

  • Automated Monitoring: Continuously track visual changes without manual intervention.
  • Accurate Detection: Utilize AI-driven analysis to identify even subtle differences between webpage versions.
  • Integration Ready: Seamlessly connects with tools like Google Sheets, Google Drive, and Linear for a cohesive workflow.
  • Customizable: Adapt the workflow to use your preferred web scraping service or adjust image processing for optimal results.

👨‍💻 Who is This Workflow For?

This workflow is ideal for:

  • Web Developers: Ensure that updates and deployments do not unintentionally alter the website’s appearance.
  • Quality Assurance Teams: Automate visual testing to maintain high standards of UI consistency.
  • Webmasters and Site Managers: Monitor and preserve the visual integrity of multiple webpages over time.
  • UX/UI Designers: Quickly identify design inconsistencies and regressions across different versions of a site.

🎯 Use Cases

  1. Continuous Integration Testing: Automatically verify that new code deployments do not disrupt the website’s layout or design elements.
  2. Brand Consistency Monitoring: Ensure that all webpages adhere to brand guidelines by detecting unauthorized or accidental changes in design.
  3. E-commerce Site Maintenance: Regularly check product pages for visual accuracy, ensuring images and layouts remain consistent for a seamless shopping experience.

TL;DR

This n8n workflow provides a comprehensive solution for automated visual regression testing, combining the strengths of Apify and advanced AI models. By systematically capturing and analyzing webpage screenshots, it ensures your website remains consistent and free from unintended visual changes. Implement this workflow to enhance your quality assurance processes, maintain brand integrity, and streamline the monitoring of your web assets.

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