Cache refers to a
storage unit that stores certain data in a reserved memory and helps in making
the system faster. When you work on the internet there also the browser cache
the page you visit so that when you visit it again it opens up faster. The
cache busting is related to that where a special code is used by the cache
buster on a browser. The code prevents the browser from reading if the webpage has
already been viewed by the user and has been cached in computer.
Using a cache
buster on your browser doesn’t mean that you don’t get the file. Instead it
just stops the browser from using that file from the cached memory. For this, a
random number is inserted by the cache buster into the advertisement tag every
time a page reloads on the user’s computer. This way the ad has a unique code
and is not read by the cache memory. It is read as a new file by the cache
memory. It is generally used by the publisher and allows him to show the advertiser
that the ad has had more unique visitors than the actual number. It helps the
publisher to get better inventory and is therefore popular with them.