title: Google Compute Engine: how to find why load balancing health checks are failing?
body: <p>I've been trying to create a Google Compute Engine network load balancing health check for an HTTPS (port <code>443</code>) endpoint. The same endpoint when accessed over HTTP (port <code>80</code>) is healthy. Also, the HTTPS endpoint, when accessed for example with <code>curl</code> correctly returns a <code>200</code> OK response, which would be the required condition for an healthy check.</p>
  
  <p>It would be extremely helpful if there was a way to access a more detailed error report of why the health check is failing, because it's probably something quite easy to fix, but the total lack of detailed information in the web interface makes it random guess work. Trying to research information about where to find detailed information about why a health check is failing I have come up empty.</p>