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Cookie Policy

Last updated on 2019-12-10

This cookie policy explains what cookies are and how Codility Ltd (“we,” “us” or “our”) uses them on (our “site”). We encourage you to read the policy in full so that you can understand what information we collect using cookies and how that information is used.

By using our site you are agreeing that we can use cookies in accordance with this policy.

What are cookies?

Cookies are text files, containing small amounts of information, which are downloaded to your browsing device (such as a computer or smartphone) when you visit a website. Cookies can be recognized by the website that downloaded them — or other websites that use the same cookies. This helps websites know if the browsing device has visited them before. More information on cookies in general can be found here:

What are cookies used for?

Cookies do lots of different jobs, like helping us understand how our website is being used, letting you navigate between pages efficiently, remembering your preferences, and generally improving your browsing experience. Cookies can also help ensure marketing you see online is more relevant to you and your interests.

What types of cookies are used by Codility?

The types of cookies used on our site can generally be put into one of the following categories: strictly necessary; analytics; functionality; and advertising.

In addition, we use cookies for additional purposes, including:

  • Identifying you when you sign-in to our site.
  • Conducting research and diagnostics to improve Codility content, products and services.
  • Preventing fraudulent activities.
  • Improving security.

You can find out more about each of the cookie categories below.

Strictly Necessary Cookies

These cookies are essential to make our website work. They enable you to move around the site and use its features. Without these cookies, services that are necessary for you to be able to use our site such as accessing secure areas cannot be provided.

Analytics Cookies

These cookies collect information about how people are using our website, for example which pages are visited the most often, how people are moving from one link to another and if they get error messages from certain pages. These cookies don’t gather information that identifies you. All information these cookies collect is grouped together with information from other people’s use of our site on an anonymous basis. Overall, these cookies provide us with analytical information about how our site is performing and how we can improve it.

Functionality Cookies

These cookies allow us to remember choices you make and tailor our site to provide enhanced features and content to you. For example, these cookies can be used to remember your user name, language choice or country selection, they can also be used to remember changes you’ve made to text size, font and other parts of pages that you can customise.

Advertising Cookies

These cookies are used to deliver advertisements that are more relevant to you and your interests. They are also used to limit the number of times you see an advertisement as well as help measure the effectiveness of the advertising campaign. They remember that you have visited a website and this information may be shared with other organisations such as advertising partners. This means after you have been to our site you may see some advertisements about our services elsewhere on the Internet.

How long will cookies stay on my browsing Device?

The length of time a cookie will stay on your browsing device depends on whether it is a “persistent” or “session” cookie. Session cookies will only stay on your device until you stop browsing. Persistent cookies stay on your browsing device after you have finished browsing until they expire or are deleted.

First and third-party cookies

“First party cookies” are cookies that belong to us and that we place on your device. “Third-party cookies” are cookies that another party places on your browsing device when you visit our site.

Third parties setting cookies from our website will be providing a service to us or a function of the site but we do not always control how third party cookies are used.

You should check the third party’s website for more information about how they use cookies. The third parties cookies present on our website are from Google, Facebook, Hotjar, Freshdesk, Mixpanel and Hubspot.

Cookies on Codility’s website

Below is a list of the cookies Codility uses on this website along with the purpose and details of each cookie.


Name Domain Duration Purpose
_fbp 3 months Targeting / Marketing
_ga 2 years Google Analytics – analytics
_gcl_au 45 days Google Adsense – advertising
_gid 12 days Google Analytics – analytics
_hjid 3 months Hotjar – user activity
csrftoken 1 year Site security
ajs_anonymous_id 1 year Functional cookie
ajs_group_id 1 year Functional cookie
ajs_user_id 1 year Functional cookie
amplitude_id 1 year Unique user identification
fs_uid 1 year User activity
hubspotutk 6 months User authentication
mkjs_group_id 1 year User activity
mkjs_user_id 1 year User activity
mktz_client_cc 1 year User activity
_mixpanel 1 year User activity / tracking
sessionid 14 days Session ID


How to manage cookies from this website

You can usually use the browser that you are viewing this website through to enable, disable or delete cookies. To do this, follow the instructions provided by your browser (usually located within the “Help”, “Tools” or “Edit” settings). Please note that if you set your browser to disable cookies, you may not be able to access secure areas of the website and other parts of the website may also not work properly.

You can find out more information about how to change your browser cookie settings at

Some third parties may use Advertising Cookies to help gather information about your browsing activity so that they can deliver website advertising to you that is relevant to your interests. The advertising industries in EU have developed schemes to help you opt-out of receiving cookies used for these purposes. You can find out more about the EU scheme from


Information about the cookies used by us may be updated from time to time, so please check back on a regular basis for any changes.

The last modification date of this document is shown at the top of this page.


If you have any questions about this cookie policy, please contact us by email at [email protected].