Cookie Policy
Cookie Policy
This Cookie Policy explains how 21D (“we”, “us”, “our”) uses cookies and similar technologies when you visit our website at www.21d.co.uk (“Website”).
It describes:
1. What cookies are
2. Why we use them
3. The categories of cookies used
4. How you can control them
5. Your rights under UK GDPR and PECR
Some cookies collect personal data or become personal information when combined with other data.
Compliance Statement
We use cookies in accordance with:
• UK General Data Protection Regulation (UK GDPR)
• Privacy and Electronic Communications Regulations (PECR)
Under these laws, non-essential cookies may only be used with your consent.
What Are Cookies?
Cookies are small text files placed on your device when you visit a website. They are widely used to make websites function correctly, operate more efficiently, and provide analytics and advertising information.
There are two main types:
• First-party cookies - Set directly by 21D Clinical Limited.
• Third-party cookies - Set by external providers such as Google, YouTube, Facebook, Vimeo or Trustpilot.
Cookies may be:
• Session cookies (deleted when you close your browser)
• Persistent cookies (stored for a longer defined period)
Types of Cookies We Use
1) Essential / Strictly Necessary Cookies
These cookies are required for the Website to function, and they do not require consent. They typically support:
• security and fraud prevention
• load balancing
• navigation
• cookie preference storage
2) Non-Essential Cookies (Require Consent)
These cookies only run if you choose to accept them via the Cookie Consent Manager.
• Analytics Cookies - Used to help us understand how visitors use the site, improve performance, and analyse trends.
• Advertising / Targeting Cookies - Used by advertising partners (e.g., Meta/Facebook) to build profiles and show relevant ads.
• Functionality & Performance Cookies - Enhance features such as video playback (YouTube, Vimeo) or user experience.
Legal Basis for Using Cookies
Under UK GDPR:
• Essential cookies are processed under legitimate interests (website functionality).
• Non-essential cookies are processed under consent.
Non-essential cookies will not be set unless you provide consent via our Cookie Consent Manager.
How to Control Cookies
You can manage your cookie preferences at any time using the Cookie Consent Manager displayed in the banner on your first visit and available thereafter on our website. You may:
• Accept all cookies
• Reject all non-essential cookies
• Change your preferences at any time
You can also delete cookies or block them in your browser settings. Blocking cookies may impact website functionality.
Withdrawal of Consent
You may withdraw your consent for non-essential cookies at any time using the Cookie Consent Manager.
Withdrawal does not affect the lawfulness of processing carried out before consent was withdrawn.
Cookies Used on This Website
Below is a list of cookies used on our website, including their purpose and duration.
NOTE: Cookie usage can vary depending on the page you visit, or the services embedded (e.g., YouTube videos, Trustpilot widgets).
Cookie Name
Provider
Category
Purpose
Duration
SSID
Google / YouTube
Analytics / Security
Maintains session, security & anti-fraud
Session – 2 years
SID
Google / YouTube
Security
Verifies user identity, prevents fraud
Up to 2 years
SIDCC
Google / YouTube
Security
Fraud prevention
Up to 2 years
OptanonConsent
Trustpilot (OneTrust)
Essential
Stores consent preferences
1 year
OptanonAlertBoxClosed
Trustpilot (OneTrust)
Essential
Remembers dismissal of banner
1 year
*amplitude_id_ *
Trustpilot
Analytics
Tracks user behaviour & session analytics
~1 year
analytics_session_id
Trustpilot
Analytics
Identifies unique sessions
1 year
YSC
YouTube
Analytics
Tracks YouTube video views
Session
VISITOR_INFO1_LIVE
YouTube
Analytics / Functionality
Bandwidth measurement; player optimisation
6 months
VISITOR_PRIVACY_METADATA
YouTube
Functionality
Stores user privacy preferences
6 months
g_state
Trustpilot
Analytics
Interface state / analytics
~6 months
vimeo_cart
Vimeo
Functionality
Stores Vimeo shopping cart items
1 year
vuid
Vimeo
Analytics / Functionality
Unique ID for video playback
2 years
UULE
Advertising / Analytics
Encodes location data for tailored search results
Session
xs
Advertising
Authentication & targeted ads
1 year
wl_cbv
Advertising
Browser version for ad optimisation
3 months
vpd
Advertising
Viewport dimensions for ad delivery
2 months
wd
Advertising
Browser window size for ad formatting
1 week
fc_referrer_url
Trustpilot
Analytics / Marketing
Records referring site for marketing analysis
6 months
TP.uuid
Trustpilot
Analytics
Creates unique visitor ID
~1 year
tp-b2b-is-sso-saml-authenticated
Trustpilot
Functionality
Enables SSO login for Trustpilot services
~1 year
Contact Us
For information on how we handle personal datamore broadly, please see our Privacy Policy.
If you have any questions about this CookiePolicy, please contact us at:
21D Clinical Limited
Email: info@21d.co.uk
Website: www.21d.co.uk