Google Chrome Removes 3rd Party Cookies | Implications for Digital Marketers

What Are 3rd Party Cookies?

3rd party cookies are cookies that are created by a different website or domain than the current website you’re browsing. Online advertisers commonly use 3rd party cookies to track users’ activity across various websites. This information provides more insight into users’ tendencies and behaviors, which in turn helps advertisers tailor their strategies.  3rd party cookies are only accessible on a domain if that domain allows outside parties’ cookies. 

How Are 3rd Party Cookies Different from 1st Party Cookies?

The main difference is the domain the cookie lives on. A first-party cookie is created by the website you’re currently browsing, while a 3rd party cookie is created by a different site altogether. 

For a 3rd party cookie to load, the website you’re browsing needs to load that 3rd party server’s code. For a 1st party cookie, any code on the domain could potentially read and set the cookie. A 3rd party cookie needs code from the publishing domain in order to read and set the cookie.

Why Are 3rd Party Cookies Important for My Business?

One of the most common uses for 3rd party cookies is targeted advertising. Because these cookies follow you from website to website as you browse, they report back your browsing history and searches. 

Have you ever searched for beach vacations and a few days later started to notice ads about beach trips on your browser? This could have been from a 3rd party cookie tracking your activity. 3rd party cookies can also be used by support chat systems provided by another service. These chat systems are operated by outside companies that need to be loaded on your domain. 

Why Is Google Chrome Removing 3rd Party Cookies?

Chrome is stepping up and offering users more privacy when browsing by removing 3rd cookies. Other browsers, such as Safari and Firefox, have already taken action and removed 3rd party cookies. Most users don’t fully understand how cookie tracking works and what information is collected by 3rd parties. Advertisers could use 3rd party cookies to track your entire browser history which critics would say is surveillance and an invasion of privacy. 

While some would argue that 3rd party cookies offer tailored ads that are helpful, most people feel the cons of invasive web tracking outweigh the pros. Google has been slower to transition, the thought being they’re trying to balance between online advertisers and personal privacy. 

Their solution is called the privacy sandbox.

What Is the Privacy Sandbox?

The privacy sandbox is a series of proposals by Google that will allow users more privacy and will still preserve the ability for advertisers to tailor ads. This initiative will replace 3rd party cookies and keep users’ data private. 

The privacy sandbox will lump users with similar browsing histories together, allowing advertisers to target groups with tailored ads without seeing an individual’s personal data. Google created the privacy sandbox to avoid blocking the user’s browser history altogether, keeping advertisers away from less transparent forms of tracking data. 

Users will still have the ability to change settings and opt-out, but by default, the privacy sandbox will offer more shielding from companies looking to collect personal browser habits.

What Will Replace 3rd Party Cookies?

Despite some of the privacy concerns, 3rd party cookies have value and provide valuable information. So, with Chrome removing 3rd party cookies, what will replace them? Some of the notable options are:

  •  Identity Graphs
  • Conversion Measurement APIs
  • Contextual Advertising
  •  Aggregate Reporting APIs
  • Trust Tokens
  • Capped Privacy Budgets
  • Federated Learning of Cohorts (FLoc)

Identity Graphs

An identity graph is a database or table of user-profiles and identifiers that are tied to users. The profiles are generic types of users that could be assigned to a group based on certain qualities. 

Some examples would be a new homeowner profile or a recently retired profile. Identity graphs can also contain personal information such as an address, birthday, mobile phone, and email. All this information can be combined to create an advertising plan specific for a user based on profile and personal information.

Conversion Measurement APIs

A more anonymous way to track the success of an advertising campaign is the conversion measurement API. When a user clicks on an advertisement, an API call is made signaling that the ad was interacted with. The API call can attach information like campaign id, or click id, or the time and date of the interaction. 

When the user gets to the advertiser’s website, the API information can be tracked to see if that visitor makes a purchase. Conversion measurement APIs can track how effective ads are on visitors without using potentially invasive 3rd party cookies

Contextual Advertising

Contextual advertising is an approach based on webpage content instead of user behavior. This is a way of targeting based on website content or mobile applications, not the users who browse them. 

Contextual advertising reads the text of a page and searches for keywords or phrases and loads advertisements based on those search results. Users are kept anonymous since the targets are solely based on the webpage content. 

Aggregate Reporting APIs

When looking to get the big picture of advertising campaigns, aggregate reporting APIs are a great option. These reports would be used for seeing the performance of advertisements across multiple metrics, which will help to give a better sense of overall performance. 

Examples could be reports of which ads perform the best by age group, or what types of ads have the highest level of interaction. Aggregate reporting APIs can vary widely, but when combined, they help give you a good idea of the overall effectiveness of advertisements. 

Trust Tokens

An anonymous way to verify users is by using trust tokens. Trust tokens work by assigning users an encrypted token that is stored in the user’s browser. This trust token can then be used to authenticate a user without requiring any private information. 

The token will stay valid during the session and allow the user to browse the domain securely. The user’s activity can then be tracked and stored for research without requiring any additional personal information. 

Capped Privacy Budgets

Capped privacy budgets are a way of limiting the number of private information advertisers can see. Giving advertisers access to some personal information can be helpful for making ads more targeted and relevant. If advertisers exceed the cap amount they could be restricted from advertising on the site.  By limiting the amount of personal information that is collected, users can browse with more privacy and less intrusion.

Federated Learning of Cohorts (FLoc)

The federated learning of cohorts (FLoc) is a new approach to track ad performance that uses machine learning to group users. The FLoc approach can gather browser history, the content of webpages or other specific factors to assign a user to a cohort. The code that creates the user cohort would live on the browser, keeping the users’ private information from being uploaded elsewhere. The browser can then expose the cohort so that advertisers can use this to target ads specific to the user. Federated learning of cohorts is an excellent alternative to 3rd party cookies because it gives advertisers the data they are looking to track while keeping users private information safe. 

How Will This Affect My Business?

If your business relies on 3rd party cookies, you’ll need to plan for an alternative moving forward. With support from Chrome ending, businesses will need to adapt to the new system Chrome implements. If your website allows advertisers that use 3rd party cookies, you’ll need to plan with them. Kissmetrics can help your business prepare for Chrome’s replacement to 3rd party cookies. 

How Can My Business Prepare for the Removal of 3rd Party Cookies?

If your business is using 3rd party cookies you’ll need to pivot to a new way of tracking advertisement performance. Kissmetrics has the tools to track user behavior and provide you with the data needed to keep tabs on your performance. With Kissmetrics you’ll be able to analyze your users’ behavior in any browser while keeping their personal data secure. 


Chrome removing its support of 3rd party cookies is a move intended to give users a more secure browsing experience. This can present a challenge to digital marketers who rely on these cookies to target ads to specific users. Ultimately, digital marketers will need to shift to Chrome’s replacement system when it is officially rolled out or implement a behavioral analytics tool like Kissmetrics. 



Google Effort to Kill Third-Party Cookies in Chrome Rolls Out in April |

ID graphs: The Path to Identity Resolution |

Federated Learning of Cohorts | Github

What is Customer Churn?

Understanding why customers stop purchasing from your company is critical, regardless of industry. However, it can be challenging to differentiate between solvable issues with your product or service versus external problems that exist for your company. 

Here we explain what customer churn is, why it’s important, how to measure it, and how to reduce it and keep your customers satisfied.

The Definition of Customer Churn

Churn is when a customer decides to stop using your product or services for some reason. This might mean canceling a subscription, ceasing their logins to your website, or not buying anything else from your company. A high churn is often a bad sign for companies, even if you’ve got plenty of new customers, as we explain below.

Why is Customer Churn Important?

Customer churn is a metric measuring long-term satisfaction with your company, products, and services. It’s more expensive to appeal to new customers than to retain existing customers. So businesses who inspire devoted brand loyalty often find that their profits increase significantly when they reduce their customer acquisition costs.

Knowing how long users typically engage with your products or how long they subscribe to your services is a major indicator of how satisfied they are. If people aren’t sticking with your products for very long, that usually means there’s room for improvement on your end. 

Causes of Customer Churn

There are plenty of reasons why customers churn, some are within your control and some are external. Any one of the following reasons might inspire some of your customers to churn.

  • Replaced by a competitor with lower prices/more features/features that add more value
  • Need no longer exists
  • Money is tight
  • Dissatisfaction with the product/service
  • Dissatisfaction with your company’s customer service
  • Dissatisfaction with your brand’s message

How Do You Identify Customer Churn?

Identifying customer churn isn’t as simple as you might think. The reason is that the majority of metrics measure the number of active users at any given time. If you have a large number of new users signing up for accounts, your user numbers might look steady over time. 

However, if most active users are new users and not existing ones, you’ll be spending more on customer acquisition costs than you need to.

Cohort Analysis

Cohort analysis is the process of segmenting your website visitors or users into groups based on their behaviors and interactions within a specified time. Everyone in a single cohort has made the same decisions and triggered the same events within the period and parameters you input in your product analytics tool

Kissmetrics’ cohort report shows you the people who progress from doing one event to doing another event. It also shows you if people are repeatedly doing a single event. This can demonstrate whether you have a high churn rate among existing customers and are only seeing consistent user numbers because of incoming users or if your users are sticking around for multiple cycles. 

What is Churn Rate?

Your churn rate is the rate of existing customers who stop doing business with your company over a given timeframe.  

Churn Rate vs. Growth Rate

Churn rate and growth rate aren’t opposites like their names might lead you to believe. Your growth rate is the number of new users your brand acquires in a given timeframe. It’s essential to distinguish these new users from your existing users because otherwise, enough new users could disguise an alarming churn rate if you only measure currently active users. 

How to Calculate Customer Churn

Calculating a customer churn rate requires you to choose a timeframe first. For example, if you wanted to calculate customer churn during the month of June, you would take the number of subscribers who canceled their subscription or failed to renew it and divide that number by the total number of subscribers at the beginning of the month. The answer is your churn rate. 

What Does a High Churn Rate Mean?

Typically, a high churn rate means your product or service is not providing long-term satisfaction. This might mean people try your app for a few days before becoming bored with it and moving on. Or that the customer doesn’t value your service enough to continue paying for it. 

Is There an Acceptable Churn Rate?

Churn rates often vary widely between industries. However, product analytics tools and informational websites often present reports on rough estimates for churn rates in some of the largest industries at the end of each fiscal year. 

According to Statista’s 2020 report, the industries where companies saw the most considerable churn rates were credit card companies and cable companies, with an average churn rate of 25%. Conversely, big-box electronics stores saw an average customer churn rate of only 11%. 

How Do You Reduce Customer Churn?

While every business must deal with some amount of customer churn, there are also steps you can take to reduce your customer churn and incentivize customers to stick with your company.

Listen to Your Customers

Everyone likes to feel like their complaints are being heard. When customers leave you negative reviews or feedback on surveys, it’s easy to dismiss them and forget about it, but that feedback is quite valuable. When customers specify where they had issues with your product or service, you can take them into account and look for solutions.

Similarly, when customers praise your company for a feature or function, you might consider focusing on it in the future. If you’ve made something that meets or exceeds their needs, maybe that is what you should be advertising or updating in time. 

Provide Great Customer Service

Whatever your product or service may be, customers will likely need to contact your business directly at some point. Whether it’s because they’re having trouble setting up your software, they’ve encountered a major error, or something else altogether; most companies must interact with their customers.

You should try to provide as many avenues of customer support as possible. Nowadays, people aren’t always content to call a hotline; they want options. Including an email and a live chat are a step in the right direction since no one likes to be on hold for hours at a time. 

Generally, customers contact support when there is a problem, and emotions can run high. That’s why you need to ensure that your customer service/customer success representatives are patient, helpful, informative, and proactive. Customers are already in a bad mood because something went wrong, but you can demonstrate why they should stick with your brand with great customer service. 

Exceed Expectations

You should constantly be looking for ways to exceed your customers’ expectations. Whether that means taking surveys to see which features need some improvement, making more customer support available, or otherwise interacting positively with customers, you should be proactive in reaching out to your existing customers and making them feel valued.

You can also exceed expectations by building great products. Use an analytics tool like Kissmetrics to track what customers use/buy and what gives them problems. Track your UX to see where customers get stuck. By spotting and solving problems before customers bring them to your attention, you’ll not only exceed their expectations but likely reduce churn in the process. 

Let Some Churn

Some customers are going to churn for reasons you can’t fix without a complete pivot. For instance, if your brand makes a luxury product, an economic downturn or global pandemic might make it unaffordable for some previous customers. Alternatively, customers might have a more intimate change in their lives like having a baby that forces them to change their habits, they might move away, or find a replacement. 

One way or another, you’ll have to come to terms with some amount of customer churn.

Identify Problems and Fix Them

Knowing where users drop off in your conversion funnel is a powerful antidote to a high churn rate. If you can see exactly where users become frustrated or stop interacting with your product, you’ll be able to pinpoint the problems and find solutions. 

For example, if you see that customers who churn within a month are never using one of your product’s key features, it could be they need more instruction or encouragement to use it. Especially if that feature is popular amongst power users. But if no one is using that feature, then it might be too complicated to figure out, or users don’t find it useful. Kissmetrics’ activity report will show you what users are doing with their accounts so that you can see which features are being used. 

Similarly, the cohort report will provide information about clients who complete designated events. You can see if the people who are churning haven’t completed specific events and whether that may have affected their decision. 


Customer churn may be a part of doing business, but you don’t have to just accept it for your company. By identifying how many customers are churning, how long they take to churn, and why they’re leaving, you can retain more existing customers and lower your customer acquisition costs. 

Get in touch with us to learn why customers churn and how you can prevent it.



Cohort Analysis: Beginners Guide to Improving Retention |

How to Calculate (And Lower!) Your Customer Churn Rate | Wordstream

Customer Churn: Definition, Rate, Calculation, Analysis, and Prediction |

Customer service: churn rate by industry US 2020 |