Monitor SSL Certificate Expiry with Google Sheets and Multi-Channel Alert

n8n template #3493

Summary

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 ensuring secure communication over the internet. However, if not monitored closely, they can expire, leading to potential security risks and service disruption. This workflow helps in proactively monitoring SSL certificate expiry dates. Functionality Pulls URLs to monitor from a Google Sheet. Checks SSL certificates using SSL-Checker.io. Updates Google Sheet with SSL details such as expiry date and certificate status. Sends email alerts

How to set it up

Open template #3493 on n8n.io and click Use for free, or copy the template JSON and paste it onto an empty canvas in n8n.
Create 3 credentials under Credentials → Add credential: Google Sheets, Telegram, Gmail. Then open each of those nodes and pick the credential.
Click Execute workflow and step through each node's output to confirm the data looks right.
Toggle the workflow to Active so its trigger runs on its own.

Hand off to your agent

Prompt

Help me set up the n8n workflow "Monitor SSL Certificate Expiry with Google Sheets and Multi-Channel Alert" (https://n8n.io/workflows/3493). It uses: Google Sheets, HTTP Request, Telegram, Gmail. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.

Paste into Claude Code and it will do the rest.

Apps and nodes

Google Sheets HTTP Request Telegram Gmail

Questions

Yes. Jesse Davids published it free on n8n.io, and it has 1,791 views. It runs on n8n Cloud or a self-hosted n8n instance.

Google Sheets, Telegram, Gmail. The other 1 node are built into n8n.

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