Host your own Uptime Monitoring with Scheduled Triggers

Description

This n8n workflow demonstrates how to build a simple uptime monitoring service using scheduled triggers.

Useful for webmasters with a handful of sites who want a cost-effective solution without the need for all the bells and whistles.

How it works
Scheduled trigger reads a list of website urls in a Google Sheet every 5 minutes
Each website url is checked using the HTTP node which determines if the website is either in the UP or DOWN state.
An email and Slack message are sent for websites which are in the DOWN state.
The Google Sheet is updated with the website's state and a log created.
Logs can be used to determine total % of UP and DOWN time over a period.

Requirements
Google Sheet for storing websites to monitor and their states
Gmail for email alerts
Slack for channel alerts

Customising the workflow

Don't use Google Sheets? This can easily be exchanged with Excel or Airtable.