Last updated: 8 October 2026
This Cookie Policy explains how One Crystal Company Limited uses cookies and similar website technologies on www.onecrystal.co.tz.
It should be read together with our Privacy Policy.
1. What Is a Cookie?
A cookie is a small data file stored on or accessed through a user's browser or device when visiting a website.
Cookies can help websites:
- operate correctly;
- maintain security;
- remember preferences;
- understand website usage; and
- improve user experience.
Similar technologies may include local storage, tracking pixels, web beacons and comparable mechanisms.
2. How One Crystal Uses Cookies
The public website does not currently use analytics, advertising, marketing or behavioural-profiling cookies.
Strictly necessary authentication cookies are used only when an authorised administrator signs in to the protected content portal. These cookies support security and session management and are not used to track general website visitors for advertising.
3. Categories of Cookies
Strictly Necessary Cookies
These cookies are required for important website functions where those functions are used.
They may support:
- security;
- session management;
- forms;
- privacy preferences;
- fraud prevention; and
- basic website operation.
Blocking these cookies may prevent parts of the website from operating correctly.
The currently active example is the secure authentication session used by authorised administrators in the protected content portal.
Functional Cookies
Functional cookies may remember choices made by visitors to improve their website experience. The public website does not currently activate this category.
Examples may include:
- language preferences;
- interface settings; or
- other user preferences.
Analytics and Performance Cookies
Analytics and performance cookies are not currently active on the public website. If introduced later, they may help One Crystal understand:
- which pages are visited;
- how visitors navigate the website;
- how long users interact with pages;
- technical performance; and
- general website usage trends.
Information obtained from analytics should be used to improve the website and services.
Marketing Cookies
Marketing cookies are not currently active. If One Crystal later introduces digital advertising or campaign-measurement tools, they will be used subject to appropriate user choice and applicable law.
One Crystal does not need to enable marketing cookies for the website to provide its core services.
4. First-Party and Third-Party Cookies
The strictly necessary administrator authentication cookie is placed by One Crystal's website.
No third-party analytics or marketing cookies are currently activated on the public website. If third-party cookie-based services are introduced, this Policy and the website's consent controls will be updated before those technologies are intentionally enabled.
These may include services relating to:
- security;
- hosting;
- analytics;
- embedded media;
- communications; or
- other website functionality.
Third-party services may process information according to their own privacy and cookie policies.
5. Information Cookies May Process
Depending on the technologies enabled in the future, cookies may involve information such as:
- IP address;
- device type;
- browser type;
- operating system;
- session identifiers;
- website pages visited;
- time of visit;
- navigation information;
- referral source; and
- preference settings.
We do not intend ordinary website cookies to be used to collect unnecessary sensitive personal information.
6. Cookie Consent and Preferences
Because non-essential cookies are not currently active, general visitors are not shown a cookie-consent prompt.
If a category requiring consent is introduced, One Crystal will provide an appropriate choice before intentionally activating that technology.
Users may be given options such as:
- Accept All
- Reject Non-Essential Cookies
- Manage Preferences
Non-essential technologies requiring consent should not be intentionally activated before the relevant choice has been made.
7. Changing Your Preferences
No cookie-preference tool is currently required because the public website does not activate non-essential cookies.
If non-essential cookies are introduced, a Cookie Settings option will be provided so users can review or change their choices.
8. Browser Controls
Most web browsers allow users to:
- view cookies;
- block cookies;
- delete existing cookies;
- restrict cookies from specific websites; or
- configure privacy settings.
The exact controls depend upon the browser and device being used.
Restricting certain cookies may affect website functionality.
9. Cookie Duration
Cookies may be:
Session cookies, which generally expire when the browser session ends; or
Persistent cookies, which remain for a defined period or until deleted.
One Crystal will seek to avoid retaining cookie information longer than reasonably necessary for its intended purpose.
10. Actual Cookie Register
The current cookie register is:
| Category | Current status | Purpose | Typical duration |
|---|---|---|---|
| Strictly necessary administrator authentication | Active only in the protected admin portal | Secure sign-in and session management for authorised administrators | Session or limited duration |
| Public analytics and performance | Not active | Not currently applicable | Not applicable |
| Public marketing and advertising | Not active | Not currently applicable | Not applicable |
| Public functional preferences | Not active | Not currently applicable | Not applicable |
Because website technology may change, One Crystal will keep this register aligned with the technologies actually deployed.
11. Security
We take reasonable steps to ensure that website technologies are implemented with appropriate consideration for security and privacy.
12. Children
This website is not designed primarily for children, and One Crystal does not intentionally use ordinary website cookies to conduct behavioural profiling of children.
13. Changes to This Cookie Policy
The technologies used on our website may change over time.
This Cookie Policy may therefore be updated where necessary.
The current version will be available on this page.
14. Contact
For questions concerning our use of cookies:
One Crystal Company Limited
Jamhuri Street, Ilala
Dar es Salaam, Tanzania
Website: www.onecrystal.co.tz
Telephone: +255 686 700 805
Email: administration@onecrystal.co.tz