The ping process (which has nothing to do with ICMP ping) keeps track of the aliveness of websites. It also gathers fingerprint information about the security posture of the website, as well as DNS information.
This is kept to build an idea of when a website is down, and to identify ownership changes, as well as other significant events in the lifecycle of a website.
- PingMain main class.
- PingJobScheduler service that dispatches pings.