Cookie Policy
Last updated: 2026-09-22
Effective Date: 22/09/2026
What this covers
This page lists the cookies and similar technologies used on duellix.com, what each one does, and who sets it. It sits alongside our Privacy Policy, which explains more broadly how we handle personal data.
Your choice
When you first visit the site we ask whether you are willing to accept cookies beyond those that are strictly necessary. Nothing in the Analytics or Marketing categories below is set until you agree, and refusing is a single click. You can change your decision at any time through the Cookie settings link in the footer of every page. We ask again after six months.
If you refuse, the site works exactly as it otherwise would. The only difference is that we cannot tell which advert or search brought you here.
Strictly necessary
These are required for the site to function and are set without consent, as the law allows.
| Cookie | Set by | Purpose | Expires |
|---|---|---|---|
| dx_consent | Duellix (first party) | Remembers your cookie choice so we do not ask on every page. | 6 months |
Analytics
These tell us how the site is used, so we know which pages are worth improving. Set only with your consent.
| Cookie | Set by | Purpose | Expires |
|---|---|---|---|
| _ga, _ga_<id> | Google Analytics | Distinguishes visitors and sessions so visits can be counted. | 2 years |
| ph_<id>_posthog | PostHog | Records how pages are used within a visit. | 1 year |
Marketing
These tell us which advert, campaign or search brought someone to the site, so we can judge what our advertising is achieving. Set only with your consent.
| Cookie | Set by | Purpose | Expires |
|---|---|---|---|
| dx_attr | Duellix (first party) | Remembers which advert or campaign you arrived from, and a short reference code, so that an enquiry you send later can be matched to it. Not shared with anyone else and not used to track you across other websites. | 90 days |
| _fbp | Meta | Measures the results of advertising on Facebook and Instagram. | 3 months |
| _rdt_uuid | Measures the results of advertising on Reddit. | 3 months | |
| Google Ads cookies | Measures whether an advert led to an enquiry. | Up to 2 years |
Cookies set by other services
Some pages embed services run by other companies, which set their own cookies once you use them. Our forms are provided by Fillout and our call booking by TidyCal. Their own privacy notices govern what they store.
Managing cookies in your browser
Besides the choice offered on this site, every major browser lets you block or delete cookies in its settings. Doing so affects all websites, not only this one, and may stop parts of some sites working.
Changes
We update this page when the cookies we use change. The effective date above shows when it was last revised.