Did you ever make an update on you website and not see it? this can be resolved by clearing your browser’s cache and cookies.
Your browser (Unknown browser) has a folder in which certain items that have been downloaded are stored for future use. Graphic images (such as buttons and icons), photo’s, and even entire web pages are examples of items which are saved or cached. When visiting a webpage your browser checks if a copy of the files on the page is in its cache already. If so, it will save the visitor some downloading and make webpages load faster. Some browsers refer to it’s cach as Temporary Internet Files