I monitor about 10 not GRAV-based websites with ‘Servermonitor’ (https://www.phpservermonitor.org/) using detection if running via a text pattern without problems. The URL is always entered as e.g. https://example.com/ and the pattern is found on the default page, e.g. index.htm. It even works with a named page like https://example.com/page.htm.
Now I applied the same scheme for a website running under GRAV, but the site is always marked as offline which is definitely wrong. The log says “TIMEOUT ERROR: no response from server”, “Could not get headers. Probably HTTP 50x error.” That happens whether I use https://example.com/ or https://example.com/home.
Any tips what the reason could be?
Thanks in advance.