This Cookie Policy sets out how Fluidstack.io (the Site) uses cookies. Please read it carefully to understand how Fluidstack uses cookies.
1. Who we are
Fluidstack is made up of different legal entities, details of which can be found here. FLUIDSTACK LTD, a company registered in England with company number 10985545 and registered address at Third Floor, 20 Old Bailey, London, EC4M 7AN, United Kingdom, and headquartered at 780 3rd Avenue, New York, NY 10017, United States is the controller responsible for the Site. Any questions in relation to this Cookie Policy, please contact legal@fluidstack.io.
2. Use of cookies
The Site uses 'cookies'. Some of these are essential or functional, while others help us to improve your experience by providing insights into how the Site is being used. We may also use cookies for advertising. Some cookies and similar technologies, particularly those that track browsing behaviour across the web are perceived by data protection regulators as privacy-intrusive. We are, therefore, presenting the below information to visitors of the Site in order to explain why and how we use this technology. Cookies work with the help of certain online identifiers and typically involve the processing of the following information that is considered personal data:
- Internet Protocol (IP) addresses;
- device or mobile IDs and/or device model and type;
- time zone;
- browser information, operating system information, and/or language preferences;
- the location and the preceding and succeeding websites you have visited, including which pages/part/icons on the Site you interacted with;
- search terms
- applications you click on and how often; and
- the pages of the Site you visit, and how long you spend on each page
3. Lawful grounds for processing
For the purposes of data protection law, Fluidstack uses the following justifications to process online identifiers derived from cookies:
- Fluidstack uses cookies for the correct, efficient and viable delivery of online content. The processing is necessary for Fluidstack’s legitimate interest (that are to ensure the availability of the Site);
- Fluidstack uses cookies for the analysis and optimisation of the Site's performance and engagement (for example, we use Google Analytics – you can read more about how Google uses your personal information here and you can opt out via the mechanism set out below. The processing is necessary for the purpose of improving the Fluidstack services and is subject to your permission (consent); and
- Fluidstack uses cookies for the delivery (including via third parties) of targeted advertising tailored to your interests. The processing is necessary for the purpose of promoting our services and is subject to your permission (consent).
4. Details of the processing
Technical inventory updated October 20, 2026 for the public marketing website at fluidstack.com. Necessary consent storage is used to remember your choices. Google Analytics and PostHog start only after you allow analytics. The inventory below covers cookies and similar browser storage; it does not cover the separate customer Console or third-party sites reached through links.
| Cookie or storage | Provider | Purpose and choice | Duration |
|---|---|---|---|
| cookieyes-consent | CookieYes / fluidstack.com | Necessary: remembers consent choices | 1 year; browser settings may shorten this |
| _ga | Google Analytics 4 / .fluidstack.com | Optional analytics: distinguishes visitors after permission | Up to 400 days observed in Chrome; refreshed on use; browser limits vary |
| _ga_BXGM3H93B9 (listed by the scanner as _ga_*) | Google Analytics 4 / .fluidstack.com | Optional analytics: maintains session state after permission | Up to 400 days observed in Chrome; refreshed on use; browser limits vary |
| fs-consent-update (local storage) | Fluidstack | Necessary: a timestamp that synchronises privacy-choice changes across open tabs | Replaced on each saved choice; remains until site storage is cleared |
| __ph_opt_in_out_* (local storage) | PostHog | Necessary: records the SDK opt-in or opt-out state; it is not an analytics identifier | Updated when analytics permission changes; remains until site storage is cleared |
| In-memory state (not a cookie) | PostHog | Optional analytics: page views, interactions, heatmaps, browser errors and performance measurements after permission; session replay is disabled | Page lifetime; no persistent analytics identifier configured |
5. Exercising control
Please exercise your choice with respect to accepting or rejecting cookies via the pop-up on the Site (if applicable) or you can choose to block cookies by activating the settings on your browser that allow you to refuse the setting of all or some cookies. However, if you use your browser settings to block all cookies (including essential cookies) you may not be able to access parts of the Site. Your browser settings also allow you to delete all cookies stored on your device whenever you wish. Please note that blocking cookies via your browser may not completely prevent how we share information with third parties such as our advertising partners. To exercise your rights or opt-out of certain uses of your information by these parties, please follow the instructions below.
6. Additional information
The UK Information Commissioner's Office provides the following guidance on controlling cookies:
- a number of websites provide detailed information on cookies, including AboutCookies.org and AllAboutCookies.org;
- the European Interactive Digital Advertising Alliance website Your Online Choices allows you to install opt-out cookies across different advertising networks;
- Google has developed a browser add-on to allow users to opt-out of Google Analytics across all websites which use it;
- some browsers include a feature known as 'Do Not Track' or DNT. This allows you to indicate a preference that websites should not track you. However, whilst DNT is available in many browsers, websites are not required to recognise its request, so it may not always work (see section 8 for our approach to DNT). You can get help on how to use DNT in Microsoft Edge, Mozilla Firefox, Google Chrome and Opera; and
- for more information on how private browsing works as well as its limitations, visit the support pages for your browser: Microsoft Edge, Mozilla Firefox, Google Chrome and Safari (iOS (mobile) and desktop).
7. Additional steps you can take to protect your privacy online
If you are concerned about online tracking then we can recommend you to:
- set your browser settings to delete all cookies every time you close your browser;
- consider adopting Global Privacy Control;
- install a privacy-friendly browser on your device, such as Mozilla Firefox, Safari, or Brave;
- install anti-tracking and ad-blocking plug-ins on that browser, such as Ad Block Plus, Ghostery or PrivacyBadger;
- use privacy-friendly web search engines, such as Ecosia or DuckDuckGo;
- opt out of targeted advertising by Google and Bing; and
- learn more about targeting advertising by visiting the Network Advertising Initiative’s educational page.
8. Do Not Track
The marketing website keeps optional Google Analytics and PostHog collection off when it detects Global Privacy Control (GPC) or Do Not Track (DNT). You can also reject analytics or withdraw your permission using Cookie settings in the footer. Necessary consent storage remains available.