Last updated: October 2, 2026
Cookies are small text files a website stores in your browser. We also use similar technologies: browser local storage, tracking pixels (small scripts from advertising platforms), and identifiers carried in links. In this policy, "cookies" covers all of these. For how we handle personal information more generally, see our Privacy Policy.
When you first visit, a banner asks you to accept or decline analytics and advertising cookies. Strictly necessary cookies, and a small number of our own first-party measurement cookies (see Section 3), are always set. Analytics and advertising cookies from Google, Hotjar, LinkedIn, Meta and Reddit are only set if you click Accept. Your choice is saved in your browser so we don't ask on every visit, and you can change it at any time (see Section 5).
We use Google Consent Mode. The Google tag loads on every page, but until you accept it is told that analytics and advertising storage are denied. In that state it does not set or read Google Analytics or Google Ads cookies. It still sends Google limited signals without cookies, such as that a page was viewed or a conversion happened, along with your IP address and browser details, as any web request does. Google uses these to produce aggregated, modelled measurement. If you arrive from one of our Google ads, the ad click ID may be carried in the page address as you move around the site, so that the click can be credited if you accept later.
The Meta Pixel and Reddit Pixel only load after you accept. Until then, if you arrived from a Meta or Reddit ad, the ad click ID is kept only in your browser's memory, not in a cookie or storage, so the click can be credited if you accept during that visit. It is discarded when you close the tab. Once you have accepted, if you are signed in or have entered your email in a form, the Meta Pixel also sends Meta a hashed copy of your email, name and phone number with page views. We also send page view, sign-up and purchase events to Meta and Reddit from our servers (their "Conversions APIs"), including a hashed copy of your email address, your IP address and browser details. We only do this for visitors who have accepted. See the Privacy Policy for more on what is shared and why.
Always set. These are needed for the site to work, so they do not require consent.
| Name | Provider | Purpose | Lasts |
|---|---|---|---|
| __session, __client_uat, __clerk_* | Clerk (quantt.co.uk) | Keeps you signed in and protects your account | Session to 1 year |
| cookie-consent | Quantt | Remembers whether you accepted or declined cookies (also stored in local storage) | 90 days |
| quantt_onboarding_path | Quantt | Remembers the learning path you picked during sign-up | 1 year |
| ref, aff_vid | Quantt | Credits a referring affiliate when you arrive through a referral link (set only when the link contains a referral code) | 60 days |
Set on every visit. These are first-party cookies used only by us; they are not shared with advertisers unless you accept.
| Name | Provider | Purpose | Lasts |
|---|---|---|---|
| qtt_vid | Quantt | Random visitor ID used for our own A/B tests and sign-up statistics. After you accept, it is also sent with Meta and Reddit events as an anonymous ID | 1 year |
| landing_page_variant_v2 | Quantt | Records which version of the homepage you were shown | 30 days |
Only set after you click Accept.
| Name | Provider | Purpose | Lasts |
|---|---|---|---|
| _ga, _ga_* | Google Analytics | Counts visits and shows how people use the site | 2 years |
| _hjSessionUser_*, _hjSession_* | Hotjar | Heatmaps and session recordings that help us improve pages | 30 minutes to 1 year |
Only set after you click Accept.
| Name | Provider | Purpose | Lasts |
|---|---|---|---|
| _gcl_au, _gcl_aw | Google Ads | Records which Google ad you clicked so a later sign-up or purchase can be credited to it | 90 days |
| _fbp, _fbc | Meta (Facebook, Instagram) | Identifies your browser and the Meta ad you clicked, to measure ad performance | 90 days |
| _fbi | Quantt | Your public IP address, so events we send to Meta match those from the Meta Pixel | 1 day |
| qtt_meta_ud | Quantt | Once you sign in or enter your email in a form, holds your email, name, phone number (if given) and account ID so events sent to Meta can be matched to you | 90 days |
| _rdt_uuid, rdt_cid | Identifies your browser and the Reddit ad you clicked, to measure ad performance | 90 days | |
| li_sugr, bcookie, lidc, UserMatchHistory, AnalyticsSyncHistory, li_fat_id | Measures LinkedIn ad performance | 1 day to 1 year |
Third-party providers may change the names or lifetimes of their cookies. Their own policies have the latest details.
We use your browser's local storage to make the platform work and to remember your progress, for example:
Local storage stays in your browser until you clear it.
You can change your choice at any time here:
Checking your choice…
Declining stops analytics and advertising cookies from being set, and stops events being sent to advertising platforms, from that point on. It does not delete cookies already in your browser; you can delete those in your browser settings. Most browsers also let you block cookies altogether, though some parts of the site, such as signing in, will not work without strictly necessary cookies.
You can also manage advertising preferences directly with Google, Meta, Reddit and LinkedIn.
Questions about this policy? Email support@quantt.co.uk.