Monitor website uptime and visual drift with Snapshot Site, Google Sheets and Slack
UnknownUnknown. This template uses community nodes we can't verify statically. Uses community nodes that can't be verified statically (unverified community packages are off by default in 3.0). Static check, last run 2026-10-19.
What this workflow does
This workflow has 18 nodes and runs on a schedule (every 10 minutes). Along the way it connects Google Sheets, Slack and Snapshot Site (community).
How it runs
Trigger: On a schedule (every 10 minutes).
- Read Uptime Watchlist (Google Sheets): uses Google Sheets
- Loop Over Watched Pages (Loop Over Items (Split in Batches)): loops over the items in batches
- Analyze Page Availability (Snapshot Site): analyze
- Check for API Error (If): checks a condition and branches into true / false
- Record Page Down (Edit Fields (Set)): sets 9 fields: url, label, baselineUrl…
- Evaluate Availability (Code): runs custom JavaScript code
- Detect State Change (Code): runs custom JavaScript code
- Check Whether Page Is Up (If): checks a condition and branches into true / false
- Check for State Change (If): checks a condition and branches into true / false
- Compare Page to Baseline (Snapshot Site): compare
…plus 6 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
We can't fully verify this one: it relies on 1 community package, and n8n 3.0 turns unverified community packages off by default (N8N_UNVERIFIED_PACKAGES_ENABLED=false).
- Check that n8n-nodes-snapshot-site is verified or supports 3.0 (used in Analyze Page Availability, Compare Page to Baseline).
Nodes used (9)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Google Sheets
n8n-nodes-base.googleSheets - Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - No Operation, do nothing
n8n-nodes-base.noOp - Snapshot Site
n8n-nodes-snapshot-site.snapshotSite - If
n8n-nodes-base.if - Edit Fields (Set)
n8n-nodes-base.set - Code
n8n-nodes-base.code - Slack
n8n-nodes-base.slack
From the author
Quick overview This workflow runs every 10 minutes to monitor a list of URLs from Google Sheets using Snapshot Site for uptime and visual comparisons, then posts Slack alerts only when a page’s state changes (up, down, or visual-drift) and writes the latest…