If you have ever built a health check, you have probably written something close to this: const res = await fetch ( url , { method : ' GET ' , signal : AbortSignal . timeout ( 10000 ) }); const isUp = res . status === 200 ; I ran a version of that for a while.
Source: [Dev.to](https://dev.to/thesaurabhk/200-ok-does-not-mean-your-service-works-167c)