All About Cookies

A Comprehensive Guide.

What Are Cookies?

Cookies, at their core, are small data pieces stored on a user's device by a web browser. These unassuming entities play a pivotal role in enhancing user experiences. They achieve this by retaining critical information such as login credentials, user preferences, and shopping cart contents. When you revisit a website, cookies seamlessly recall your previous interactions, ensuring a smooth and personalized browsing experience.

What Are Cookies on a Website?

Cookies on a website serve diverse purposes, ranging from tracking user behavior to analyzing website performance and personalizing content. The spectrum includes session cookies that expire upon closing your browser and persistent cookies that linger for predefined durations. Each type contributes significantly to the functionality and efficiency of the online environment.

Cookie Storage

The organized arrangement of these small data snippets defines cookie storage. Housed in your browser's metaphorical cookie jar, this repository facilitates the quick retrieval of information when needed. Understanding how cookies are stored is fundamental to grasping their impact on your digital journey.

Local Storage vs. Cookies


Local storage provides an alternative to cookies, offering developers additional means to store data on a user's device. While cookies focus on communication between the client and server, local storage operates exclusively on the client side.


Deciding between local storage and cookies involves considering factors such as data size, lifespan, and security. Cookies are apt for smaller data and are automatically sent with every HTTP request. In contrast, local storage supports larger data sets and offers a simpler API.

Pros and Cons

The debate between local storage and cookies among developers revolves around the unique strengths and weaknesses of each. This guide dissects the pros and cons, empowering you to make informed decisions based on your project's specific requirements.

How Do Cookies Work?

Cookies function by establishing a communication channel between the client and server. As you navigate through websites, these unobtrusive data pieces silently exchange information, enabling the web to remember your preferences and past actions. In the realm of web development, frameworks like React provide tools such as the "react-cookie" library, streamlining the management of cookies in React applications and elevating the overall user experience.

Cross-Domain Cookies

Cross-domain cookies pose challenges related to privacy and security. This section explores the intricacies of sharing cookies across different domains, ensuring a delicate balance between seamless user experiences and robust security measures.

What Do Cookies Do?

Cookies serve multifaceted purposes, ranging from storing session information to tracking user preferences. Understanding the various roles cookies play is key to appreciating their significance in shaping the online world and tailoring it to individual user needs.

What Is Local Storage?

Distinct from cookies, local storage offers a more substantial data storage solution on the client side. This section delves into the intricacies of local storage, exploring its capabilities and limitations within the context of web development.

Privacy Laws and Cookie Compliance

Various jurisdictions have specific requirements, such as the General Data Protection Regulation (GDPR) in Europe or the California Consumer Privacy Act (CCPA) in the United States. Compliance with these laws is crucial to ensure responsible and lawful handling of user data.

Cookie Consent

Cookie consent is a key aspect of privacy compliance. Websites must obtain user consent before deploying non-essential cookies. This guide explores the principles of transparent and informed consent, detailing the mechanisms and best practices for implementing user-friendly cookie consent banners.

Cookie Consent Manager for Privacy Compliance

Presents users with clear information on how their behaviour is to be tracked by cookies to meet GDPR opt in and CCPA opt out requirements.

Consent Based Tag Manager

Only load advertising tags if you have collected consent from your users. 3rd-party scripts blocking and loading based on consent.

Customize Your Vendors List

Whitelist your vendors list. Only send consent you have collected to trusted parteners.

Cookie Consent Solution for Publishers and Marketers

Cookie Consent for Wordpress, Drupal, Shopify, Joomla, Magento, Sitecore and any other CMS. Make the compliance process easy to understand and control. Not only cookie banners, bar, notification but consent management, control and insight.

Streamline GDPR / CCPA Privacy Law Compliance

Website cookie consent management, GDPR cookie banner and data subject requests management solution for digital publishers, SaaS, Marketing, E-commerce websites.

As an independent consent management platform, certified IAB CMP for prebid header bidding, UniConsent provides IAB TCF compliance, Google Ads compliance, Remarketing tags and pixel compliance, Google Analytics compliance, Cookie Auditing and disclose, Consent based tag manager, Consent Analytics.

Cookie Discovery and Disclose
Automatically scans websites to discover cookies. Legally required disclosures for cookie usage based on privacy regulations.
GDPR Explicit Cookie Consent Collection
Ensures passing GDPR consent signals to demand partners. Compliant cookie consent collection for publishers and DSPs.
Customizable CMP UI
Simple yet distinct visual style. Customizable colors, fonts, and wording to match your website’s needs.
Consent Analytics and Insights
Comprehensive tracking and charts for consent management. Export analytics data to Google Data Studio for detailed analysis.
Fast and Reliable
Ensures high performance, low latency, and reliability crucial for digital publishers, large networks, programmatic ad stacks, SaaS, and e-commerce websites.
Technical Support
Expert problem-solving for GDPR CMP-related issues. Dedicated support team for seamless GDPR/CCPA CMP integration.

Get started to make your website and application compliant for EU GDPR, US CPRA, CA PIPEDA etc

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