Last updated: 3rd December 2025
This Cookie Policy explains how Emerge21 Ltd T/A 21Stacker (“21Stacker”, “we”, “our”, “us”) uses cookies and similar tracking technologies on our website.
By using our website, you agree to the use of cookies as described in this policy. You may withdraw or manage consent at any time.
1. What Are Cookies?
Cookies are small text files stored on your device by websites you visit.
We use cookies to:
enable essential website functions
improve performance
analyse usage
prevent fraud
support affiliate tracking
show personalised content (with consent)
Cookies may be:
First-party (set by 21Stacker)
Third-party (e.g., Google, Meta, SliceWP)
Session (expire on browser close)
Persistent (stored for a defined period)
2. Types of Cookies We Use
A. Strictly Necessary Cookies (No consent required)
Used for essential functions:
login and account creation
checkout and Lightning payment processing
fraud prevention
session management
skill-based question validation
AMOE tracking and eligibility enforcement
These cannot be switched off.
Examples:wp_session, woocommerce_cart_hash, woocommerce_items_in_cart
B. Analytics & Performance Cookies (Consent required in UK/EU)
Used to:
measure site traffic
diagnose technical issues
improve user experience
Examples:_ga (Google Analytics), server performance logs.
C. Marketing & Advertising Cookies (Consent required)
Used for:
remarketing
measuring campaign results
personalised offers
Examples:
Meta Pixel, Google Ads remarketing cookie.
D. Affiliate Tracking Cookies (Consent required in UK/EU)
Used to credit commissions to referring affiliates.
These may store:
referral IDs
click IDs
attribution tokens
first/last-click logic
Blocking cookies may prevent affiliate attribution.
Example:slicewp_referrer, affiliate_id
3. Cookie Duration
Session cookies: deleted when browser closes
Persistent analytics cookies: 30–180 days
Affiliate cookies: 30 days (unless otherwise stated)
Marketing cookies: may persist up to 6 months depending on provider
4. How We Obtain Consent
Under UK GDPR, EU GDPR, and PECR:
Non-essential cookies are disabled until consent is given
Visitors may Accept All, Reject All, or Set Preferences
Consent can be withdrawn at any time
U.S. visitors may also see the banner for consistency, but cookie consent is not required by U.S. law.
Our cookie banner appears:
on your first visit
again every 180 days
whenever you clear settings or cookies
5. How to Manage Cookies
You may control cookies using:
our cookie consent banner
browser settings
device-level choices
Blocking cookies may affect:
site performance
affiliate tracking
login functionality
personalised draw notifications
6. Third-Party Cookies
We use trusted third-party providers, including:
Google (Analytics, Ads)
Meta (Facebook Pixel)
SliceWP (affiliate tracking)
Email automation platforms
Payment and hosting providers
They may set their own cookies subject to their privacy policies.
7. Changes to This Policy
We may update this policy periodically.
The date at the top will reflect the latest version.
8. Contact Us
Emerge21 Ltd T/A 21Stacker
Ground Floor, Gallery Building
65–69 Dublin Road
Belfast
BT2 7HG
United Kingdom
Email: support@21stacker.com