Free Uptime Monitoring Using a Self-Hosted Solution

I recently encountered a peculiar issue with one of my clients. They were experiencing intermittent connectivity problems with a specific website—random occurrences a few times a day where the site would become unreachable. They suspected the issue might be within their Azure virtual network environment. However, after a thorough review of their setup, I was fairly confident that the problem wasn't on the Azure side. The challenge was proving it definitively. What caught my attention was the website's unusual rate-limiting behavior. If I tested the site multiple times in quick succession, I would get blocked for 15 minutes. This behavior initially sidetracked me, but I eventually realized I needed a way to monitor the website's uptime to determine if it was going down intermittently. That's when I started exploring uptime monitoring solutions. There are several free or trial-based SaaS solutions available in the market, such as: UptimeRobot Pingdom Site24x7 While these tools are great,