Cookie Policy
Last updated: October 2026
1. What Are Cookies?
Cookies are small text files that are placed on your device when you visit a website. They are widely used to make websites work efficiently, remember your preferences, and provide information to site owners. Cookies cannot execute programs or deliver viruses; they simply store a small amount of data that the website can read on future visits. A similar technology is the browser's local storage — data kept there stays on your device and is not sent to the server automatically.
2. Cookies We Use
We use the following categories:
These cookies are necessary for the platform to function and do not require consent. Without them, services such as signing in and account protection would not work. In your browser some of them may appear with a "__Secure-" or "__Host-" prefix.
| Name | Type | Purpose | Kept for |
|---|---|---|---|
| authjs.session-token | Essential | Stores your authenticated session so you stay signed in | 30 days |
| authjs.csrf-token | Essential | Cross-site request forgery protection for sign-in forms | Session |
| authjs.callback-url | Essential | Remembers where to return you after sign-in | Session |
| authjs.pkce / authjs.state / authjs.nonce | Essential | Short-lived security cookies set only while you sign in with Google | 15 minutes |
| tz_device | Essential | Recognises a browser you have already verified for your account | 400 days |
| tz_age_ok | Essential | Remembers that you confirmed you are 18 or older | 1 year |
| NEXT_LOCALE | Essential | Remembers the language you chose | 1 year |
| chatSessionId | Essential | Keeps your conversation with the help assistant while you are not signed in | 30 days |
These are not cookies: the data is kept only in your browser. We use it to remember your settings and for our own visit statistics, which are not shared with third parties.
| Name | Type | Purpose | Kept for |
|---|---|---|---|
| tz-theme | Preference | Your chosen colour theme (dark or light) | Until you clear it |
| tz-risk | Preference | Your chosen risk-level view | Until you clear it |
| tz-age-ok | Essential | A copy of your 18+ confirmation | Until you clear it |
| tz-consent | Essential | Your cookie choice | 1 year |
| tz_guide_seen | Preference | Records that you have already seen the introductory guide | Until you clear it |
| tz_played_bets | Preference | The bets you marked as played | Until you clear it |
| _vid | Statistics | A random visit identifier for our own visit statistics | Until you close the tab |
If you allow them, we use Google Analytics to understand how the site is used so we can improve it.
| Name | Type | Purpose | Kept for |
|---|---|---|---|
| _ga | Analytics | Google Analytics — tells visitors apart so that statistics can be compiled | 2 years |
| _ga_<ID> | Analytics | Google Analytics — keeps the state of the session | 2 years |
If you allow them, we use Google Ads to measure whether our ads lead to registrations and purchases, and so that Google can show you more relevant ads.
| Name | Type | Purpose | Kept for |
|---|---|---|---|
| _gcl_au | Advertising | Google Ads — links your actions on the site to an ad you saw | 90 days |
| _gcl_aw | Advertising | Google Ads — stores information about the ad click that brought you here | 90 days |
3. Third-Party Services
Google Analytics and Google Ads are provided by Google Ireland Limited. If you allow them, Google sets the cookies described above and receives technical data — IP address, device and browser information, pages viewed — as well as whether you registered, started a payment or completed a purchase (with its value and order number). We do not send Google your name, email address or payment details. Google may also process this data outside the European Economic Area.
More on how Google uses this data: policies.google.com/technologies/partner-sites.
We use no other third-party advertising or tracking services. If you navigate to a bookmaker's website via a link on our platform, that bookmaker's own cookie policy applies to your visit there — we have no control over external cookies.
4. Managing Your Cookies
You can change your choice for analytics and advertising cookies at any time via "Cookie settings" at the bottom of every page, or with the button here:
You can also manage cookies through your browser settings. Most browsers allow you to:
- View the cookies currently stored on your device.
- Block cookies from specific websites or all websites.
- Delete all cookies when you close your browser.
- Set preferences for specific types of cookies (e.g. block third-party only).
Please note that blocking essential cookies will prevent you from signing in and using the platform. If you clear local storage, your theme and settings will not be remembered between visits.
5. Cookie Consent
Essential cookies and local storage do not require consent. Analytics and advertising cookies are loaded only after you allow them in the cookie banner on your first visit. If you refuse, they are not loaded and you can use the site without any restriction.
Your choice is kept for 12 months, after which we will ask again. You can withdraw your consent at any time via "Cookie settings" — we then delete the Google cookies set by our site.
6. Updates to This Policy
We may update this Cookie Policy as our use of cookies changes or as required by law. The "Last updated" date at the top reflects when changes were last made.
7. Contact
If you have questions about our use of cookies, contact us at privacy@topzalog.com.