Monitor SSL certificate expiry with Google Sheets and multi-channel alert
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 11 nodes and runs on a schedule (every week at 08:00). Along the way it connects Google Sheets, Gmail, Telegram and Ntfy (community).
How it runs
Trigger: On a schedule (every week at 08:00).
- Fetch URLs (Google Sheets): uses Google Sheets
- Check SSL (HTTP Request): calls an HTTP API
- URLs to Monitor (Google Sheets): append or update
- Switch: routes items into 3 branches
- Send Alert Email (Gmail): uses Gmail
- Telegram: uses Telegram
- Send Alert Email (Gmail): uses Gmail
- Send Alert Email (Gmail): uses Gmail
- Send Alert Email (Gmail): uses Gmail
- Ntfy: uses Ntfy
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-ntfy is verified or supports 3.0 (used in Ntfy4).
Nodes used (7)
- Google Sheets
n8n-nodes-base.googleSheets - Schedule Trigger
n8n-nodes-base.scheduleTrigger - HTTP Request
n8n-nodes-base.httpRequest - Switch
n8n-nodes-base.switch - Gmail
n8n-nodes-base.gmail - Ntfy
n8n-nodes-ntfy.Ntfy - Telegram
n8n-nodes-base.telegram
From the author
SSL Expiry Alert System Who is this for? This workflow is ideal for administrators or IT professionals responsible for monitoring SSL certificates of multiple websites to ensure they do not expire unexpectedly. Problem SSL certificates play a crucial role in…