Cookies are small files created by a web server, delivered through a web browser and stored on your computer, mobile phone or other devices. When you visit the website again, the cookie allows that site to recognize your browser. Cookies may store user preferences and other information. Pixels are small blocks of code on web pages and in emails that do things like allow another server to measure viewing of a webpage and often are used in combination with cookies. Local storage is an industry-standard technology that allows a website or app to store and retrieve data on a person's computer, mobile phone or other devices.
Cookies last for different lengths of time depending on what they are used for.
First and third party cookies
Cookies can be classified as 'first party' or 'third party'.
You can delete all cookies that are already on your device and prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a website and some services and functionalities may not work.
All major browsers allow you to change your cookie settings. For example, you can set up your web browser to inform you when you receive a cookie, giving you the chance to decide whether or not to accept it. You can usually find these settings in the 'options' or 'preferences' menu of your browser. To understand these settings, the following links may be helpful, or you can use the 'Help' option in your browser for further assistance.
Instructions for managing cookies in popular browsers