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Google Docs Website Uptime Monitor
A few months ago a colleague pointed me to a few blogs that were sharing Google Docs spreadsheets that offered free uptime monitoring for websites. Here are the original links that I checked out:
The original spreadsheet (first link above) allowed single-site uptime monitoring. The spreadsheet would email you at a specified interval (every 5 minutes, for example) if the status of the website changed. Another developer made some enhancements to allow monitoring of multiple sites and also to offer SMS reminders. I decided it’d be fun to improve the usability of the spreadsheet, so my version: