The way you clear the browser cache depends on the particular browser you are using.
Here is how you clear the cache on common browsers: In addition to clearing the cache, each browser may have a way of stopping or minimizing the caching of web pages.
Many Managed Word Press hosting plans use server-side caching.
If you are using a Managed Word Press service from your hosting provider and you are seeing this issue, you may want to see if they have an option to manually flush the cache.
Why do I have to wait 72 hours for changes to my domain to take effect?