Gatus
Automated developer-oriented status page
...If your infrastructure went down right now, how long would it take for you to know? Gatus was made to monitor everything, in every possible way. HTTP, GraphQL, DNS, ICMP/PING, TCP, certificate expiration, you name it. While checking the response status may be enough for some use cases, Gatus goes much further and allows you to add conditions on the response time, the response body, and even the IP address. Unlike the competition, Gatus is completely open-source. If there's a feature you want to see, it's as simple as creating an issue on the public repository, or implementing it yourself! ...