Clearing the website data cache is very easy and quick to do, but the option does require navigating into some obscure menus.
Open Settings app.
Scroll down to locate the Safari option and select it.
Scroll all the way to the bottom and select the Advanced option.
Select Website Data.
On this screen you can delete saved data from individual sites by finding the site in the list using the search field or selecting Show All Sites if necessary.
You can clear the entire website cache by selecting Remove All Website Data at the bottom.
Select Remove Now to confirm.
Now you know how to clear your cache of website data for Safari whenever you want.
