Quick overview
Quick overview This workflow receives a post-deploy webhook from your CI pipeline, waits for the site to settle, compares the deployed page against a baseline using Snapshot Site, and reports failures to Slack while opening a GitHub issue when the visual mismatch exceeds a defined threshold. How it works Receives a POST webhook from your CI/CD job with the deployed page URL, a baseline URL, and optional commit and environment values. Waits 45 seconds to let CDN caches and client-side rendering stabilize before taking screenshots. Uses Snapshot Site Compare to capture and compare the baseline and deployed pages. Detects comparison failures (hard request errors or Snapshot Site soft errors) and sends an alert to a Slack channel. Checks the mismatch percentage against a 10% threshold to determine whether a layout regression occurred. For regressions, posts a detailed Slack alert with diff/before/after links and creates a GitHub issue with the same evidence; otherwise it ends without action. Setup Install the verified n8n-nodes-snapshot-site community node and add Snapshot Site API credentials. Add Slack credentials and set the target channels (for example #deploys for regressions and #deploys-alerts for comparison failures). Add GitHub credentials (a personal access token with repo scope) and set the repository owner and name in the GitHub issue creation step. Activate the workflow, copy the Webhook node Production URL, and configure your CI pipeline to POST url, baselineUrl, and optionally commit and environment after each deploy. Adjust the wait time and the mismatch threshold to match your site’s typical post-deploy rendering variability. An n8n automation workflow template by Snapshot Site.
Snapshot Site
web
free
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