Cookie policy

A cookie is a small text file a website asks your browser to store. It lets the site remember things between pages and visits, such as a choice you have made. Similar technologies, including local storage and small tracking pixels in pages or emails, do comparable jobs, and this policy covers those too.

Necessary. These make the site work: keeping your session, remembering your cookie choice, and protecting forms against abuse. They are set whenever you use the site and cannot be turned off here, because the site does not work without them.
Analytics. These tell us which pages are read, how people arrive, and where they leave, so we can improve the site. They are set only if you accept them.
Marketing. These measure whether a campaign led to an enquiry and may be set by advertising platforms. They are set only if you accept them.

Some cookies are set by services we use rather than by us, for example analytics, advertising platforms and embedded content such as videos or maps. Those companies handle the data they collect under their own policies, and we recommend reading them. We do not control what they do with it.

When you first visit, a banner asks whether to allow the optional categories. Analytics and marketing cookies stay off until you accept. You can change your mind at any time by clearing this site's cookies in your browser, which brings the banner back on your next visit.

Every major browser lets you see the cookies stored, delete them, and block them for a site or in general. The settings are usually under Privacy or Site settings, and the browser's own help pages explain the steps. Blocking necessary cookies will stop parts of this site working properly.

Session cookies are deleted when you close your browser. Persistent cookies stay until they expire or you delete them; the ones we set for your cookie choice and for analytics typically last up to twelve months. Cookies set by other companies last for the period those companies set.

Browsers vary in how they send a "do not track" signal and there is no agreed standard for responding to it, so this site does not respond to it. Use the cookie banner and your browser settings to control what is stored.

We may update this policy as the site and the tools we use change. The version on this page is the one that applies, and the date at the top shows when it last changed.