Is there an easy access health check URL for web instances ?

Hello,

I need to easy access health check URL for web instances, I know that we can use the /monitoring page and follow the "Status: Active" but it is required authentication. Is there a basic health check URL to follow http response code and html context like "this server is alive and everything is perfect"?

Especially this question is related with LB and monitoring purposes, because LB is only checking http response code 200 and sometimes I'm sometimes having some kind of web problem and web instance still responding 200 code but when I browse the web instance, .net error appearing. I mean that returning always 200 is not represent that server is "alive" and LB or monitoring tools can be misguided.