PingPing might be a bit more popular than NIXStats. We know about 1 link to it since March 2021 and only 1 link to NIXStats. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Nixstats.com - Free for one server. E-Mail Notifications, public status page, 60 second interval and more. - Source: dev.to / almost 3 years ago
I used https://pingping.io which notified me around 30 secs after the outage started. Source: almost 2 years ago
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