When you use a browser, like Chrome, it saves some information from websites in its cache and cookies. Clearing them fixes certain problems, like loading or formatting issues on sites. 

In Chrome

1. On your computer, open Chrome.
2. At the top right, click More .
3. Click More tools  Clear browsing data.
4. At the top, choose a time range. To delete everything, select All time.
5. Next to "Cookies and other site data" and "Cached images and files," check the boxes.
6. Click Clear data.

Learn how to change more cookie settings in Chrome. For example, you can delete cookies for a specific site.