Hello, the 404 Not Found status code indicates that the origin server was unable to locate the requested resource. Typically, this means the host server could not find the resource. For a more permanent version of this error, the 410 Gone status code should be used.
These errors typically occur when someone mistypes a URL on your site, when there is a broken link from another page, when a page that previously existed is moved or removed, or there is an error when a search engine indexes your site.
These errors typically account for approximately 3% of total page views for a typical site. However, they often go untracked by traditional analytics platforms, such as Google Analytics. To improve user experience, website owners usually implement a custom 404 page to be displayed when this error is generated.
As I said, these errors are intermittent: the URL works some times, and some times, it does not. So I don’t see how your explanation help. Do you agree?
I think I found an alternative that is more reliable.
Instead of using purely the command line cloudflared to set the tunnel, I set it in the Zero Trust dashboard, not as a a locally configured tunnel. This seems much more reliable so far, but maybe it’s anecdotical. I tried to migrate this tunnel to the dashboard as well.