Cookies and other similar technologies

Last Updated: May 23, 2018

ClassDojo offers a range of features that use technologies like cookies, pixel tags ("pixels"), device or other identifiers and local storage (collectively, “Cookies and similar technologies”) to provide a seamless and safe experience on ClassDojo.

First and foremost, we do not use or disclose information collected through Cookies or similar technologies for third-party advertising purposes (including behaviorally targeting of advertising to students).

As described in more detail below, we use these technologies in many ways so that ClassDojo works beautifully and safely, like for security purposes, to provide certain helpful features, and also to understand and measure how ClassDojo is used by teachers, parents, and students. Third parties that you interact with as you use the Service may also use these technologies for a variety of purposes

For a full list of all the different tracking technologies we use, please see here.

Check back here from time to time to get the latest information about these technologies and how they are used on ClassDojo.

Your browser or device may offer settings related to these technologies - visit your browser or device's help material to learn about your options. We may, however, not recognize or respond to browser or device signals around tracking, and changing these settings may impact your ability to use some of the great features on ClassDojo.

Below we provide more information about Cookies and similar technologies and how they work.


What are some of these Online Tracking Technologies?


How does ClassDojo use Online Tracking Technologies when visitors use a mobile device?

Many mobile devices act just like computers, such as smart phones that support full-featured browsers. For those devices, we use Online Tracking Technologies in ways that are similar to when you are accessing the web from a computer. Other devices use different technologies such as local storage on a device, Software Development Kits (SDKs) or Advanced Programming Interfaces (APIs) to facilitate the same types of processes we use cookies for, as described below. As on the web, we also may use similar technologies to store and retrieve an identifier or other information from or on your device.

With your permission, we may also obtain or receive information about your use of your mobile device and our Service.  We describe how we use these technologies and the information we received from them on our Privacy Policy.


How can visitors manage these Online Tracking Technologies?

  • Browser Cookie Controls
    Your browser or device may offer settings related to these technologies - visit your browser or device's help menu to learn about your options (browsers for mobile devices may not offer visibility).  For example, you may set your browser to refuse all cookies or to indicate when a cookie is being sent. However, changing these settings may impact your use of some features or services on our Service or Website as they may not function properly without cookies.

  • Flash Cookies
    Cookie management tools provided by your browser will not remove Flash cookies. Learn how to manage privacy and storage settings for Flash cookies here. If you disable Flash cookies, you won’t have access to certain features that make your guest experience more efficient and some of our Services will not function properly.

  • Mobile
    Please note that the choices described above regarding browser-based opt-outs may not apply to opt-outs involving mobile applications.


Why do we use cookies and similar technologies?

ClassDojo uses cookies that are both session-based (temporary) and persistent (permanent).  Session cookies exist only during one session. They disappear from your computer when you close your browser software or turn off your computer. Persistent cookies remain on your computer or mobile device even after you close your browser or turn off your computer, and make it possible to recognize you during subsequent visits to the website or application.  Persistent cookies remain on your device until their end date is reached, until a new cookie is installed or until you delete them in the settings of your browser, application or mobile device.

We use these technologies for a variety of reasons, such as allowing us to show you content that’s most relevant to you, improving our products and services, and helping to keep our Service or Website secure. While specific names of the Online Tracking Technologies that we use may change from time to time as we improve and update our Service or Website, they generally fall into the below categories of use:


Categories of use



These tell us when you’re logged in, so we can show you the appropriate experience and features. For example, cookies help us remember your browser so you do not have to keep logging into our Service.

Security and site integrity

These help keep ClassDojo safe and secure by supporting and enabling security features and help us detect activity that violates our Terms of Service. For example, we use security cookies to authenticate users, prevent fraudulent use of login credentials, protect user data from unauthorized parties and to help us fight spam and phishing attacks.


These help us provide localized experiences. For example, we may store information in a cookie that is placed on your browser or device so you will see the site in your preferred language.

Site features, services, and user preferences

These provide functionality that help us deliver products and services and change the way the Website or Service behaves or looks. For example, knowing when you’ve already taken a product tour so we don’t show it to you again and storing preferences to know when you’ve seen or interacted with certain content, and provide you with customized content and experiences!

Session state

Websites often collect information about how users interact with a website. This may include the pages users visit most often and whether users get error messages from certain pages. For example, we use these cookies to help us improve our Services and Website, in order to improve our users’ browsing experience. Blocking or deleting these cookies will not render the website unusable.


These help us help us ensure ClassDojo is operationally performing at a high level, such as by understanding how quickly our Service loads for different users.

Analytics and research

These are used to understand how teachers, parents, and students use ClassDojo, and thus so we can continue to find ways to make ClassDojo a great experience. For example, we may use these technologies to know which features on ClassDojo are most popular - and which ones need some more love from us!


How do third parties use Online Tracking Technologies on our Website or Service?

In addition to using our own Online Tracking Technologies, we work with various companies to help us analyze how the Service and Website is used, for functionality and serving content, for advertising and to improve ClassDojo to deliver the best possible experience for teachers, parents, and students. These third parties may use web measurement and customization technologies (such as cookies) in conjunction with the provision of these services. Take a look at our third-party service providers to learn more about them as well as to review their privacy policies.

Third parties may also use cookies on their own website and applications in connection with our Website or Services, such as social media sharing or authentication features from Facebook and Twitter.


Do we use cookies if you don't have an account or have logged out of your account?

We still use cookies if you don’t have an account or have logged out of your account. For example, if you have logged out of your account we use cookies to, for example, help you log in faster the next time.

We also set cookies if you don’t have a ClassDojo account, but have visited, to help us protect our Services and the people who use it from malicious activity. For example, these cookies help us detect and prevent denial-of-service attacks and the mass creation of fake accounts.
If you have cookies on your browser or device, we read that cookie when you visit a site with our app.

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