Your browser (such as Safari, Edge, or Chrome) loads web pages from the internet. To speed up this process, certain elements, such as images, are stored on your computer. This is done to make everything load faster. However, a downside of this is that you sometimes see 'old' versions of web pages that have not been updated.
It can also be useful to "hard reload" the page when checking changes. In Chrome, Edge and Firefox, you can hard reload on Windows with CTRL+F5.
On a Mac, in Chrome and Firefox, you can hard reload with Command+Shift+R. In Safari, you can use ⌘ Command + ⌥ Option for this.
