Sorry if this is the wrong venue.
I upload new media files to web site (MP3 or OGG). Visitors clear their cache and refresh their browser. However, the -old- version of the file still plays for them. I can go so far as to delete the file from the web server via FileZilla and they -still- can load and play the old version.
When I look at the .htaccess file for the site I don't see any cache statements.
This doesn't seem to be an issue with new HTML, however. IOW: if I update a PHP or HTML or JS page, the results do show immediately.
The host is GoDaddy. I don't believe they have any caching services (that I can see anyhoo) like CloudFlare. Or perhaps they do and I can't 'see' it.
My question is -why-? And more to the point, -how- can I 'flush' whatever needs to be flushed so that when I upload a new audio/video file the new file is immediately made available.