Why Do Websites Have Cookies? Are They Safe?

February 24, 2025
by: SMK
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You want to attract more customers and improve their experience. You’ve heard cookies can help, but you’re unsure what or how they work.

You’re not alone. Not all business owners know the technicalities of their websites. That is why they hire website designers to do the work for them. 

Cookies are an important part of a website. Little did you know, they provide a big help in getting your leads. 

What Are Cookies?

Cookies are text files with small pieces of data, such as your username and password. They are used to identify your computer when you use your network. They help websites enhance the user experience and perform important tasks. 

You can think of cookies like a customer service representative at a store who recognises repeat customers and greets them by name. Rather than asking for the same information every time, the representative already knows your preferences and can provide better service. In the case of websites, cookies help track user behaviour, personalise the content, and enable smoother navigation.

Types of Cookies and Their Functions

Cookies come in several types, each with specific purposes:

1. Session Cookies

Session cookies are temporary and exist only for the duration of your visit to a website. Once you close your browser, session cookies are deleted. They help websites keep track of actions within a single browsing session, such as items in a shopping cart or your login status. 

Without session cookies, you would have to re-enter information every time you navigate a new page, making the browsing experience tedious.

2. Persistent Cookies

Unlike session cookies, persistent cookies stay on your device even after you close your browser. They have an expiration date that can range from a few days to several years. 

These cookies help you remember your preferences across multiple visits. For example, when you visit an online store, and the website remembers your language preference or automatically logs you in, it’s likely using persistent cookies.

3. First-Party Cookies

These cookies are created by the website you are currently visiting. For example, when you visit a website like Amazon, any cookies created by that site are considered first-party cookies. 

These cookies help the website remember your preferences, language settings, and login information for future visits. They are essential for a personalised user experience.

4. Third-Party Cookies

Third-party cookies are set by domains other than the one you are visiting. Advertisers often use these cookies to track users across different websites.

For instance, if you visit a website with embedded content from YouTube or an ad network, those services may place third-party cookies on your device. These cookies help companies build detailed profiles of users’ browsing habits and more effectively target ads.

5. Secure and HttpOnly Cookies

To enhance security, cookies can be marked as “Secure,” meaning they can only be transmitted over HTTPS connections, and “HttpOnly,” which prevents client-side access through JavaScript. These settings help protect sensitive data from being compromised.

Why Do Websites Have Cookies?

website designer creative planning application

Websites use cookies for several reasons:

1. Enhance User Experience

Cookies are key to creating a better customer experience. Without them, site visitors would have to re-enter their information, adjust settings, and start from scratch every time they return. Cookies let your website remember their preferences, making their visits smoother and more convenient.

For example, if you run an online store, cookies can save your customers’ language settings, preferred currency, and even items in their shopping carts. They can also keep customers logged in so they don’t have to type in their credentials again, saving time and reducing frustration.

Cookies also speed up websites by storing certain elements, such as images or layouts, so they load faster on future visits.

2. Make Tracking and Analysing Easier

Cookies are an excellent tool for understanding user behaviour on your website. They show which pages visitors view, what content they engage with, and where they leave. As a business owner, this information is incredibly valuable for improving your site.

Using tools like Google Analytics (which relies on cookies), you can see that visitors might leave your product page after viewing it without completing a purchase. This insight can help you fix the issue by making checkout easier or adding more product details.

Cookies also track conversion rates. If someone clicks on your ad and later makes a purchase, cookies can connect the sale to the ad. This lets you see how well your ads are performing.

3. Make Advertising and Marketing Effective

Cookies are a powerful tool for targeted advertising. They track user behaviour across websites, helping you show ads that match their interests. These ads, called behavioural ads, feel more relevant to your audience.

For example, if someone searches for running shoes on your online store, they might later see ads for those shoes on other websites. This happens because cookies track their interests and allow advertisers to display similar products.

As a business owner, cookies help you reach the right audience more effectively. They boost engagement, improve marketing results, and drive more sales by ensuring your ads appear to people ready to buy.

4. Provide Better Security and Authentication

Cookies play a key role in website security. They keep users logged in as they navigate your site, so they don’t have to re-enter their credentials on every page. This is crucial for sites that require authentication, such as banks, e-commerce stores, or social media platforms.

For example, when someone logs into their bank’s website, cookies ensure they stay logged in while browsing their dashboard. The system is smooth and secure because the cookie can expire after a set time or log the user out when the session ends.

This means offering a better user experience while maintaining security for your business.

5. Improved Site Performance

Cookies make your website run more smoothly and improve the user experience. They store information that helps your site work faster and more efficiently.

For example, if someone visits your blog often, cookies can track which articles they’ve already read. This way, your site can show fresh content instead of repeating what they’ve seen.

Cookies also remember user preferences, such as light or dark mode, font size, or language choice. Thus, visitors won’t have to set these options every time they visit, making their experience easier and more enjoyable.

Are Cookies Safe?

ux designer creating website layout

The short answer is YES but with some important considerations regarding privacy and security.

1. Privacy Concerns

Cookies can raise privacy issues, especially third-party cookies used for tracking and advertising. These cookies collect data about user's browsing habits across different sites, creating detailed profiles of their interests and behaviour. While this helps businesses personalise ads and content, it can make users feel their privacy is at risk.

For example, many people don’t know their browsing activity is tracked across websites. They may lose trust in your site if they believe their data is being misused or sold without consent. To avoid this, be transparent about your cookie usage and give users control over their data.

2. Security Risks

Cookies aren’t dangerous on their own, but they can be targets for cybercriminals. Hackers may try to steal cookies with sensitive information, like login details or session tokens, through attacks like cross-site scripting (XSS) or session hijacking.

To keep cookies secure, follow best practices. Use HTTPS to ensure all data transfers are encrypted. Set cookies with Secure and HttpOnly attributes so they’re sent only over secure connections and can’t be accessed by malicious scripts. These steps protect both your business and your users.

3. User Control Over Cookies

Privacy laws like GDPR and CCPA require businesses to inform users about cookie usage and let them manage their preferences. Many websites now display cookie consent banners that allow visitors to choose which cookies they want to accept.

Giving users control over cookies isn’t just about following the law—it builds trust. When users see that you value their privacy and let them decide how their data is used, they’re more likely to feel secure and stay loyal to your business.

Build Your Website with SMK

Cookies are important for your website. They allow you to customise your visitors' experience, track their interactions with your site, and improve your marketing. While cookies can raise privacy concerns, they are safe when used correctly and essential for keeping your site running smoothly. 

As a business owner, it's essential to understand how cookies work, how they can help your business, and how to use them responsibly to protect your customers' privacy. If you want to learn more about improving your website, please contact SMK Creations. We are here to assist you!

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