are people using them in the wild? They are enabled by default in most web server daemons and are widely used [1]. ETags can negatively affect performance und

are people using them in the wild? They are enabled by default in most web server daemons and are widely used [1]. ETags can negatively affect performance under certain conditions and some choose to disable it and instead use their CMS to do other cache busting techniques in combination with cache-control headers that seem to evolve with time the combination of techniques that is. There are probably better and more detailed statistics out there than what I found or at least there better be with the number of bots I see hourly. [1] - https://w3techs.com/technologies/details/ce-etag https://w3techs.com/technologies/details/ce-etag