How this site works

Cookie Policy

We use a small number of cookies to keep this website working, secure, and to understand how it is used so we can improve it. This page explains what cookies are, the cookies this site uses, and how to control them.

EU & UKLast reviewed: 29 Jun 2026

1What cookies are

A cookie is a small text file that a website stores on your device when you visit. Cookies let a site remember your actions and preferences over time, and help the site owner understand how the site is used. Some cookies are set by us; others are set by the third party services we use, such as our analytics providers.

2The types of cookies we use

Strictly necessaryNeeded for core functions such as security and signing in to a member area. These are only set when the function is used and cannot be switched off in our systems.
StatisticsHelp us understand how visitors use the site, so we can improve it. We use Google Analytics, and Jetpack for site statistics.
Privacy friendlyWe also use Burst Statistics, which is configured to measure visits without storing cookies or personal data on your device.

3Cookies used on this website

The main cookies set when you browse this site are listed below. Exact cookies can vary as we update the services we use.

CookieProviderPurposeRetention
_gaGoogle AnalyticsDistinguishes individual visitors to measure site usage.2 years
_ga_VREFFJY82XGoogle Analytics (GA4)Keeps the analytics session state for this site’s GA4 property.2 years
tk_ai / tk_qsJetpack (Automattic)Anonymous identifiers used for aggregate site statistics.Session to 1 year
None set by defaultBurst StatisticsMeasures visits without storing cookies or personal data on your device.—

4How to manage cookies

You can control and delete cookies through your browser settings. Most browsers let you block or remove cookies, and you can set your browser to warn you before a cookie is stored. Guidance for the main browsers is available at aboutcookies.org.

To opt out of Google Analytics across all websites, you can install the Google Analytics opt-out browser add-on.

Please note that blocking some cookies may affect how parts of the site work.

Your privacy, your choice

Read how we collect, use, and protect your personal information across all of our services.

Read the Privacy Policy