Learn how you could enable or disable cookies on the Safari web browser so that you could browser certain website.
Cookies allow websites to record information about you and your visit. The next time you visit the site, that cookies can be use to better serve your your need. For example, advertisement company uses information from the cookies to configure what ad to display on the web page base on your browsing history. If you search and browse a lot about shoes then you will more likely to see ads about shoes.
Note that certain websites require cookies to be enabled for it to work. For example if you use Yahoo mail service and you have disable cookies then you may not be to function the site properly.