Difference between First Party and Third Party Cookies

What is the difference between first-party and third-party cookies? If you’re also searching for the same thing, then we have an answer for you! 

As a website owner, sometimes it gets difficult to manage cookies. Web cookies were simple to grasp when the internet was still in its infancy; they were tiny packets of data transmitted to assist you in running an application on your computer.

Several web cookies are still safe today, but some have developed into quite contentious and obtrusive practices. Third-party cookies are typically more commercial and are utilized to follow you and make sales, but first-party cookies are frequently very helpful and enhance the user experience. Continue reading this blog to give you a detailed guide on this topic. 

Difference between First Party and Third Party Cookies

What Are Cookies and Why Would You Use Them?

Small text files known as cookies or web cookies are kept on desktop browsers like Google Chrome and Safari. Cookies’ primary function is to recognize users and retain personal data about them, such as your login details and current location. Internet cookies come in various forms and are employed for multiple purposes, including personalization and session management.

These little text files allow the website or browser to gather user information and enhance user browsing.

The Function of Cookies

Web cookies function in three steps:

A cookie with a special ID is produced by the website or web server and contains the user’s information.

The web browser of the user receives this information.

The web browser transmits this information back to the website’s server each time an individual visits the website to display it specifically for that user.

Now that you know what cookies are and how they function on a user’s browser. It’s time to look at the types of cookies and what differentiates third-party cookies from first-party cookies.

What is a 1st party cookie?

With the help of first-party cookies, site owners can gather analytical information and retain user preferences for a more tailored experience. When a website or domain is accessed, first-party cookies are saved on the visitor’s device.

This enables websites to save login data on platforms like e-commerce, resulting in a quicker login or purchase process each time the website is accessed.

What is a 3rd party cookie?

Third-party cookies, as their name implies, originate from servers or domains other than the one the visitor is now visiting. Using websites containing scripts or tags that run the third party’s code, third-party candidates place them on the user’s device, usually for marketing purposes.

These packet headers, also referred to as persistent cookies, stay on a website till an admin deletes them; however, users can turn off cookie tracking in their browsers. In contrast to using this information for marketing, third parties also utilize it for services like live chat, pop-up windows from different domains, and buttons from social networking sites.

First-Party & Third-Party Cookies Example

Got a detailed view regarding first and third-party cookies? Now let’s examine the difference between first & third-party data and how it operates differently on websites by an illustration.


The Distinction among first-party & third-party cookies is quite evident in amazon. A first-party cookie is used when a user enters an e-commerce website like Amazon. The user can have the maximum level of confidence that the internet browser will submit a request in a way that communicates directly with Amazon.

The user’s web browser saves this data file to their computer with the “amazon.com” domain. The customer would have to sign in each time they came if first-party cookies were prohibited, and they wouldn’t be able to add multiple products to their online shopping cart since the cart will reset after each addition.

Similarly to the preceding illustration, third-party cookies function when a customer purchases on Amazon. They might look at a few things and linger on the product pages. The consumer may eventually receive emails and other advertisements for the brown sneakers they considered but ultimately decided against buying when they choose just to buy one item, the brown hat over the brown footwear.

That tracking information will remain on the user’s computer even if they exit their browser and cease the session.

Difference between first party and third party cookies

The four core things that create the Distinction among first-party & third-party cookies are as follows.

Possession of the cookies and the information they gather

The publisher’s web server places a first-party cookie on a website, and the site owner collects the data from it. Through code installed on the publisher’s website, a third-party server can establish a third-party cookie, and the information is then gathered and managed by that third party.

Allowing or preventing cookies

All browsers, by definition, allow first-party cookies, which can later be actively banned or deleted by the user. Browsers may either permit or for bid third-party cookies. Most browsers automatically block third-party cookies. Third-party cookies can also be deleted or blocked by users independently.

Cookies accessibility

The domain that sets the first-party cookie has access to it. Any website that loads the content from the third-party server is capable of reading a third-party cookie.

Consent to cookies and regulation

Many privacy rules demand that users explicitly consent to the usage of third-party cookies. On the contrary side, first-party cookies are frequently absolutely required cookies that don’t need user permission.

First-party cookies that are necessary are exempt from obtaining user consent under all cookie rules, including GDPR and CCPA. Some cookie rules, however, do mandate that the website should inform the visitor of the usage and objective of the necessary cookies.

How do browsers approach first- and third-party cookies?

Whether first-party or third-party, all cookies were previously treated equally by browsers. However, browser programmers started to distinguish between different cookie types after consumers grumbled about the behaviour of certain cookies.

Developers created ad-blockers and anti-trackers to prevent third-party cookies from accessing sensitive data.

Some, like Mozilla, have a staunch opposition to third-party cookies. Some companies, like Microsoft, put the user experience first. Most modern browsers offer options that let users reject many cookies.


Once you comprehend the difference between first-party & third-party cookies, we can state that the foundation of online advertising for many years has been third-party cookies, but those times may be coming to an end.

In addition to combating the increasingly prevalent ad blockers and other tools that prevent third-party monitoring, advertisers and publishers now also have to cope with privacy-focused laws like the GDPR.

Additionally, the media has helped raise public awareness of the privacy concerns related to third-party cookies. But publishers can still strive to profitably monetize their websites by investigating ways to use first-party and transactional data.

Increase Rev can be useful for publishers that still base their monetization strategies on third-party cookies. We have years of expertise using first-party techniques to provide individualized, pertinent adverts, and we can assist you in making the journey to a world without third-party cookies.

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