Cookie policy
This policy explains the cookies and similar technologies Compare Glazing uses on this website, what they do and how you can control them.
Last updated: July 2026.
What cookies are
Cookies are small text files a website stores on your device. We also use your browser’s local storage in the same way. They help the site work, remember information between pages and understand how visitors arrive.
Cookies we set
When you land on the site we set first-party wml_* cookies to record your marketing attribution — the campaign source and search terms (UTM values) and any advertising click identifiers passed in the web address. This lets us understand which campaign an enquiry came from. The same values are also kept in your browser’s local storage.
| Cookie | Purpose | Expiry |
|---|---|---|
wml_utm_source, wml_utm_medium, wml_utm_campaign, wml_utm_term, wml_utm_content | Record the marketing campaign, medium and search term that brought you to the site | 90 days |
wml_gclid, wml_fbc, wml_fbp and other wml_* click identifiers | Record the advertising click that referred you, so enquiries can be attributed to the right campaign | 90 days |
wml_landing_url | Remember the first page you arrived on | 90 days |
These first-party cookies are essential to how our attribution works and do not identify you to third parties on their own.
Analytics and tag manager cookies
We do not currently set advertising or analytics cookies beyond the first-party wml_* cookies above. When we enable our tag manager (Google Tag Manager), additional cookies may be set — for example Google Analytics (_ga, _ga_*) and advertising cookies from Google (_gcl_au) and Meta (_fbp, _fbc). We will update this policy and, where required, ask for your consent before those cookies are set.
Managing cookies
You can control or delete cookies through your browser settings, and set most browsers to block them. Blocking our wml_* cookies will not stop the enquiry form working, but attribution may be less accurate. For more on managing cookies see aboutcookies.org.
More information
To learn how we use the data collected through the form and these cookies, see our privacy policy.