Explain why are cookies used on websites?

In short (click here for detailed version)

Cookies are used on websites to store information about users, such as language preferences, session IDs, or browsing histories, in order to improve the user experience and personalize the content offered.

Explain why are cookies used on websites?
In detail, for those interested!

To personalize the user experience

Cookies are a bit like little notes that websites take about you during your visit. They allow the site to remember your preferences, such as your language choices, your region, or the items you've placed in your cart. This way, the next time you come back, everything is set just the way you like it. Imagine you're a sports fan: without cookies, you'd have to specify every time that you only want to follow your favorite team – pretty annoying, right? Thanks to cookies, your browsing experience is more enjoyable, simpler, and especially more personalized.

To analyze visitor behavior

Cookies help to understand how visitors navigate a site. For example, they record the most visited pages, the time spent on them, or even if you quickly leave a section. Publishers can then identify the most appreciated content or those that need improvement. By tracking your clicks like a little virtual breadcrumb trail, site owners detect common habits, such as the paths you prefer to take or the menus you completely ignore. In short, these small files provide a kind of radiography of user behavior to better tailor the content to what you are really looking for.

To optimize the technical performance of the site.

Cookies enable the site to load faster by saving certain elements directly on your browser. For example, information like your display preferences or certain site settings are stored in these small files, so you don't have to reload everything from scratch every time. This avoids unnecessary requests to the server, which lightens traffic and reduces wait time. In short, less time wasted, smoother navigation, and less overloaded servers.

To improve marketing strategies

Cookies help advertisers better understand your tastes and preferences, in order to offer you more relevant ads. Thanks to them, brands can know which ads perform well, which ones don't, and adjust their strategy accordingly to be more effective. It also allows for retargeting interested visitors, for example by showing special offers to those who have already visited the site without purchasing. In short, this little file keeps track of you closely (yes, nothing creepy about that) so you see what really matters to you.

To maintain security and manage user sessions.

Cookies facilitate user session management by retaining your credentials after you log in. This avoids having to re-enter your information each time you refresh the page or switch tabs. It’s also a good way for the site to verify that it’s really you, and not a stranger, to protect your account against unauthorized access or fraud attempts. In some cases, cookies also allow the site to request a new authentication if your account remains inactive for too long, to prevent someone else from taking your place.

Did you know?

Good to know

Frequently Asked Questions (FAQ)

1

How can I disable or delete cookies in my browser?

The procedure varies slightly depending on your browser: generally, you go to the settings or preferences, then to the privacy or security sections where you will find an option to manage your cookies. You can choose to delete them, block them, or set your custom preferences.

2

Why am I seeing so many notifications to accept cookies?

In accordance with European GDPR legislation and other international privacy regulations, websites must explicitly obtain your consent before using certain types of cookies that may collect your personal information or track your online behavior. This explains why these requests frequently appear.

3

Are there alternatives to cookies for tracking a user's activity on a web page?

Yes, there are some alternatives: browser local storage (Local Storage), session storage (Session Storage), browser fingerprinting, or account-based identifiers (linked to a registered user account). However, cookies remain the most common and easiest method to manage for user session tracking and behavioral analysis on a website.

4

Should I necessarily accept cookies on a website?

Sure! Here’s the translation: "No, you always have the choice to accept or reject cookies. However, refusing certain cookies may limit some features of the site or affect your user experience. It is recommended to check the nature of the cookies before accepting or rejecting them."

5

What is the difference between session cookies and persistent cookies?

Session cookies are temporary and disappear as soon as you close your browser. For example, they are often used to remember items placed in the shopping cart during a session. In contrast, persistent cookies remain on your device until they expire or are manually deleted, allowing for a personalized long-term user experience.

6

Are cookies dangerous for my privacy?

Cookies themselves are not dangerous, but they can raise concerns related to the protection of personal data. Some cookies collect information that can be used for advertising targeting purposes. To manage this, you can configure your browser to block or manage cookies according to your preferences.

Technology and Computing : Programming

No one has answered this quiz yet, be the first!' :-)

Quizz

Question 1/5