Cookie policy
This policy explains the cookies and similar browser storage used on this website, what they do and how long they last. Cookies are small text files stored by your browser. We use them to make the site work and to understand how visitors found us.
First-party marketing-attribution cookies
When you land on the site we set our own first-party cookies, prefixed wml_, together with matching entries in your browser’s local storage. These record marketing attribution so we know which campaign or advert brought you here and can measure our advertising.
They store values taken from the address you arrived on, such as:
- UTM values — campaign source, medium, campaign name, term and content;
- Advertising click identifiers — for example Google (
gclid) and Meta (fbc/fbp) click IDs; and - The page you first landed on.
These wml_ cookies are first-party (set only on this domain), and they expire after 90 days. They do not track you across other websites.
| Cookie | Purpose | Expiry |
|---|---|---|
wml_utm_source, wml_utm_medium, wml_utm_campaign, wml_utm_term, wml_utm_content | Record the campaign that referred you | 90 days |
wml_gclid, wml_fbc, wml_fbp and similar | Record the advertising click that referred you | 90 days |
wml_landing_url | Record the first page you visited | 90 days |
Tag manager & analytics cookies
We may enable a tag manager (Google Tag Manager) to run analytics and advertising tags. When that is switched on, those tags may set additional cookies — for example Google Analytics cookies (_ga, _ga_<id>) which help us understand aggregate site usage. This tagging is currently disabled; we will update this policy and this table when it is enabled.
Managing cookies
You can delete or block cookies through your browser settings. Because the wml_ cookies are essential to how we attribute and handle your enquiry, blocking them may affect how the site works but will not stop you submitting the form. For more on how we use the data these cookies collect, see our privacy policy.