Cookie Policy
This page explains the cookies and similar browser storage Window Savings uses, what they do, and how long they last.
Last updated: 11 July 2026. Cookies are small text files stored on your device. We use them only to make the site work and to understand how visitors find us so we can measure our advertising. We do not use cookies to build profiles for unrelated third-party advertising.
Cookies we set
We set a small group of first-party marketing-attribution cookies, all named
with the wml_ prefix. They record how you arrived at the site — the campaign
values (such as UTM parameters) and advertising click identifiers (such as a Google
gclid or a Meta click id) in the link you followed — so that if you go on to
make an enquiry we can attribute it correctly. They are set when you land on the site and expire
after 90 days.
| Cookie | Purpose | Type | Expiry |
|---|---|---|---|
wml_utm_source, wml_utm_medium, wml_utm_campaign, wml_utm_term, wml_utm_content |
Store the campaign attribution (UTM) values from the link you arrived on. | First-party | 90 days |
wml_gclid, wml_fbc, wml_fbp and other ad click ids |
Store advertising click identifiers so an enquiry can be attributed to the ad you clicked. | First-party | 90 days |
wml_landing_url |
Remembers the first page you landed on, submitted with your enquiry. | First-party | 90 days |
The same values may also be mirrored in your browser’s local storage under
the same wml_ names, so attribution survives you moving around the site or returning
later. You can clear these at any time through your browser settings.
Tag-manager and analytics cookies
We include a Google Tag Manager container in the site’s code, but it is currently
switched off and sets no cookies. If we enable it in future to run analytics or
advertising tags — which may set additional third-party cookies such as Google Analytics
(_ga) or Meta (_fbp) cookies — we will update this policy and, where
required, ask for your consent before those cookies are set.
Managing cookies
You can block or delete cookies through your browser settings, and clear local storage the same
way. The wml_ cookies are not strictly necessary for the site to display, so blocking
them will not stop you browsing or making an enquiry — it only means we may not be able to
attribute your visit to the campaign that brought you here.
wml_* cookies (90-day expiry) to remember
how you found us. Analytics and advertising tags are off by default; if we turn them on, we’ll
update this page first.