Legal
Cookie Policy
Last updated: 12 August 2026
A cookie is a small file a website stores on your device. Some are needed to make the site work; others help us understand how the site is used or measure our advertising. This page lists what we use and how to control it. It sits alongside our Privacy Policy.
Categories we use
Strictly necessary
These make the site function and cannot be switched off, such as any cookie required to submit a form securely.
Analytics
These tell us which pages are read, how people arrive, and where they drop off, so we can improve the site. We use Google Analytics 4, loaded through Google Tag Manager.
Advertising
These let us measure whether our advertising works and show relevant ads to people who have visited the site. We use the Meta Pixel and, server-side, the Meta Conversions API.
What is actually set
| Cookie | Set by | Purpose | Category | Typical duration |
|---|---|---|---|---|
| _ga | Google Analytics | Distinguishes one visitor from another | Analytics | 2 years |
| _ga_<id> | Google Analytics | Keeps session state for GA4 | Analytics | 2 years |
| _fbp | Meta | Identifies browsers for ad measurement and targeting | Advertising | 3 months |
| _fbc | Meta | Stores the ad click that brought you here, for attribution | Advertising | 3 months |
Google Tag Manager itself does not set cookies; it is the container that loads the tags above. Durations are those published by each provider and can change.
The Meta Conversions API
As well as the browser Pixel, we send conversion information to Meta from our own systems. This tells Meta that a genuine enquiry happened even when a browser blocks the Pixel. Identifiers such as your email address are hashed before they are sent, and each event carries an ID so a single action is never counted twice. It is used on the same basis as our other advertising technology.
How to control cookies
You can block or delete cookies in your browser at any time. Every major browser lets you refuse cookies outright, delete those already stored, or block them for particular sites. Blocking strictly necessary cookies may stop parts of this site working.
- You can opt out of Google Analytics across all websites with Google's browser add-on.
- You can adjust how Meta uses your data in your Meta account's ad preferences.
- Most browsers also offer a Do Not Track or tracking-prevention setting.
Changes
If we add or remove a tool, we will update this page and the date at the top.