86–90 Paul Street, London EC2A 4NE +44 20 3823 6471
Business professionals outside a modern London office building

Cookie policy

The cookies used on crystalzest.co.uk and how to control them.

Before publication

Complete the cookie table below with the actual cookies set by the finished site, including any analytics or consent-management provider chosen. Non-essential cookies must not be set before the visitor agrees.

Last updated: August 2026.

How we use cookies

A cookie is a small file stored on your device. This website uses a small number of them. Essential cookies are needed for the site to work and are set automatically. Analytics cookies are optional and are only set if you choose "Accept analytics" in the notice shown on your first visit.

Cookies used

NameTypePurposeDuration
cz-cookie-choiceEssentialRemembers your cookie preference12 months
PHPSESSIDEssentialMaintains the session while a form is submittedSession
[analytics cookie]AnalyticsMeasures how pages are used, in aggregate[to confirm]

Changing your mind

You can clear cookies for this site in your browser settings at any time, which will cause the choice notice to appear again on your next visit. You can also block cookies entirely, though parts of the site may not work as intended.