Cookie Policy
How Creative Spark Digital Ltd uses cookies and similar technologies, what each category means, and how you can accept, reject, or change your preferences.
This Cookie Policy explains how Creative Spark Digital Ltd uses cookies and similar technologies on this website. It should be read alongside our Privacy Policy.
Last updated: 2 July 2026
What cookies are
Cookies are small text files placed on your device when you visit a website. Similar technologies include local storage and session storage in your browser. They help websites work, remember choices, or understand how visitors use a site.
Why we use cookies
We use cookies and similar technologies to:
- Make the website work securely and reliably
- Remember your cookie consent choices
- Support services you request (such as payments and project surveys)
- Understand website usage and improve performance — only if you consent
We do not use advertising or marketing cookies on this website at present.
Your consent choices
When you first visit, you will see a cookie banner with three options: Accept all, Reject non-essential, or Manage preferences. Non-essential analytics and performance tools are not loaded until you consent.
Your choice is stored in a first-party cookie called csd_cookie_consent. We remember your cookie choices for up to 6 months, unless you change your preferences sooner. After that, we will ask again.
You can change your mind at any time using Cookie settings in the website footer, or by clearing cookies in your browser.
If you withdraw consent for analytics or performance cookies, we reload the page where possible so those scripts stop running on future visits.
Cookie categories
Strictly necessary
Required for core site functions, security, consent storage, and services you request (such as payment or survey checkout).
Always active — you cannot turn these off while using the related service.
csd_cookie_consent
Stores your cookie consent choices so we do not ask again on every visit.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- 6 months
- Type
- cookie
- Consent required?
- No
ICO guidance allows a strictly necessary cookie to remember consent. This does not enable analytics or marketing.
prelaunch_bypass
Remembers approved access when the site is in temporary pre-launch mode.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- 30 days (only when pre-launch mode is enabled)
- Type
- cookie
- Consent required?
- No
Not set in normal public operation unless pre-launch mode is active.
admin_auth
Keeps an internal admin session after password login.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- 7 days
- Type
- cookie
- Consent required?
- No
Used only on /admin routes. Not set for normal website visitors.
css_project_survey_submission (sessionStorage)
Temporarily remembers your project survey reference so checkout can link to your answers.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- Until you close the browser tab
- Type
- session storage
- Consent required?
- No
Functional storage for a service you request; cleared when the session ends.
Stripe cookies (checkout.stripe.com)
Payment security, fraud prevention, and checkout functionality during payment.
- Provider
- Stripe Payments UK Ltd / Stripe Inc.
- Duration
- Set by Stripe during checkout (see Stripe cookie policy)
- Type
- third party service
- Consent required?
- No
Third-party cookies on Stripe's domain. Required to complete payment. Not controlled by our consent banner.
Preferences
Remember choices that change how the site behaves or looks. We do not currently use optional preference cookies.
Optional — only active if you consent.
No optional preference cookies are currently used.
Analytics
Help us understand how visitors use the website so we can improve content and journeys.
Optional — only active if you consent.
csd_analytics_session
Anonymous first-party session identifier for conversion analytics after you accept analytics cookies.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- 30 minutes of inactivity
- Type
- cookie
- Consent required?
- Yes
Used only to group page views and CTA clicks within a visit. No advertising profiling.
csd_analytics_session (localStorage)
Stores the analytics session identifier and last activity timestamp on your device.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- 30 minutes of inactivity
- Type
- local storage
- Consent required?
- Yes
Cleared when analytics consent is withdrawn or the session expires.
csd_utm_attribution (sessionStorage)
Remembers basic campaign parameters (utm_source, utm_medium, utm_campaign) for the current visit.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- Until you close the browser tab
- Type
- session storage
- Consent required?
- Yes
No personal data. Used only for aggregated conversion reporting.
First-party conversion events (server database)
Records anonymised conversion milestones such as page views, CTA clicks, and completed enquiries to measure the customer journey.
- Provider
- Creative Spark Digital Ltd (first party)
- Duration
- Operational retention per internal data policy
- Type
- third party service
- Consent required?
- Yes
Operational events after form submission are business records. No form field contents are stored in analytics events.
Microsoft Clarity (clarity.ms)
Session recordings and heatmaps to understand how visitors use the website.
- Provider
- Microsoft Corporation
- Duration
- Provider-defined (see Microsoft Clarity documentation)
- Type
- script
- Consent required?
- Yes
Optional. Not loaded unless configured. Form fields are masked. Not used for advertising.
Vercel Web Analytics (/_vercel/insights/script.js)
Measures page views and on-site events to understand how the website is used.
- Provider
- Vercel Inc.
- Duration
- Session / provider-defined (see Vercel documentation)
- Type
- script
- Consent required?
- Yes
Previously loaded unconditionally in root layout; now gated behind consent. May use cookies or similar identifiers depending on Vercel configuration.
Performance
Measure loading speed and technical performance from real visits.
Optional — only active if you consent.
Vercel Speed Insights (/_vercel/speed-insights/script.js)
Collects real-user performance metrics such as Core Web Vitals.
- Provider
- Vercel Inc.
- Duration
- Session / provider-defined (see Vercel documentation)
- Type
- script
- Consent required?
- Yes
Marketing
Used to deliver or measure advertising. We do not currently use marketing cookies on this website.
Optional — only active if you consent.
No marketing cookies are currently used.
Third-party providers
Some technologies are provided by trusted third parties:
- Vercel — website hosting, Web Analytics, and Speed Insights (only after consent)
- Stripe — secure payment processing when you pay a deposit or invoice on Stripe's checkout pages
Third-party providers may set their own cookies when their service is used. Their policies apply to those cookies. Stripe cookies are necessary to complete payment and are not controlled by our consent banner.
Browser controls
Most browsers let you block or delete cookies. You can usually find these controls in Settings → Privacy (or similar). Blocking all cookies may affect how the website works, including your ability to store consent choices.
Useful guidance is available from the ICO: how to control cookies in your browser.
Changes to this policy
We may update this Cookie Policy when our website, tools, or legal requirements change. The latest version will always be published on this page with an updated date.
Contact
Questions about cookies or this policy: cssdesignstudiouk@gmail.com
Creative Spark Digital Ltd, 128 City Road, London, EC1V 2NX, United Kingdom