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Cookies: What are they for?

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UPDATEJune 10, 2023

Have you ever wondered why websites often ask for your consent to use cookies? Or perhaps you´ve noticed pop-up notifications mentioning ´´cookie tracking.´´ In today´s digital age, cookies play a crucial role in enhancing your browsing experience and enabling personalized content delivery. In this article, we´ll delve into the world of website cookies, exploring what they are, their purpose, and how they work.

What Are Website Cookies?

Cookies are small text files that websites place on your device (computer, smartphone, or tablet) when you visit them. These files contain data that websites use to remember certain information about you, allowing them to customize and enhance your browsing experience. Cookies are created and stored by your web browser, and they typically consist of a name, value, and an expiration date.

The Purpose of Website Cookies

Session Management: Session cookies are temporary files that enable websites to remember your actions or preferences during a single browsing session. For example, session cookies can store your shopping cart items on an e-commerce website, allowing you to continue shopping without losing your selections.

Personalization: Cookies help tailor websites to your preferences. When you visit a site for the first time, it may ask you to select your language or region. This choice is stored in a cookie, so the next time you visit, the website can automatically display content relevant to your preferences.

User Authentication: Authentication cookies are used to verify the identity of users, allowing them to access restricted areas of a website. These cookies are commonly employed on platforms that require you to log in, such as social media networks or online banking sites.

Tracking and Analytics: Cookies are utilized by website owners to gather anonymous information about visitors' behavior, such as the pages they visit, the duration of their visit, and the actions they take. This data helps website owners analyze user patterns, optimize their content, and improve the overall user experience.

Types of Website Cookies

  1. First-Party Cookies: These cookies are set by the website you're visiting. They enable the website to remember your preferences and deliver personalized content.

  2. Third-Party Cookies: Third-party cookies are set by domains other than the website you're visiting. They are typically used for advertising and tracking purposes. For example, advertisers use these cookies to display targeted ads based on your browsing history.

How Do Cookies Work?

When you visit a website, your browser sends a request to the server hosting that site. The server responds by sending both the webpage content and a cookie associated with that site. Your browser stores this cookie on your device, associating it with the specific website. The next time you visit the same website, your browser automatically sends the cookie back to the server, allowing the site to recognize you and provide personalized content.

It's important to note that cookies are generally harmless and cannot execute any code or spread viruses. However, concerns about privacy have prompted regulations such as the General Data Protection Regulation (GDPR) and the ePrivacy Directive. These regulations require websites to obtain user consent before placing certain types of cookies and provide clear information about their purpose.

Managing and Deleting Cookies

Most web browsers allow you to manage and delete cookies stored on your device. You can choose to block all cookies, accept them selectively, or set your browser to notify you when a website attempts to store a cookie. By accessing your browser settings, you can also delete specific cookies or clear all cookies from your device.


Website cookies are a fundamental part of the modern web browsing experience. They serve various purposes, including session management, personalization, user authentication, and tracking. By utilizing cookies, websites can enhance user experience, offer personalized content, and gather valuable analytics data. Understanding how cookies work empowers users to make informed decisions about their privacy settings and enjoy a safer, more customized online experience.