When you view a page or a website in your browser some of these pages and images are saved to your computer in order to speed up loading of the website. The problem is if the webpage is updated then your browser could still be loading the saved content, so this is why we recommend that you either hard refresh the page (Ctrl + F5) or clear your browsers cache.
Below we have written guides on how you can do this in Google Chrome, Firefox, Internet Explorer, Safari and Safari on the iPhone. Please note these instructions may differ depending on the browser version your are using e.g. Internet Explorer 10 or Internet Explorer 11.