Cookie Policy

Last updated: 2026-04-19

This page lists every cookie and local storage entry set by tradecalculator.co.uk, why we set it, and how to refuse or remove it. It is a companion to our Privacy Policy.

1. What are cookies?

“Cookies” are small text records stored by your browser. PECR reg. 6 also covers similar technologies such as localStorage and sessionStorage. The table below treats all of these as “storage entries”.

2. Your choice

On your first visit you will see a banner asking whether to allow optional analytics and session-replay storage. If you decline, we only use the strictly-necessary entries in the table below. You can change your mind later by clearing this site’s cookies in your browser settings — the banner will reappear on your next visit.

3. What we store

3.1 Strictly necessary (no consent required, PECR reg. 6(4))

Name	Type	Purpose	Retention
`tradecalculator-consent`	localStorage	Remembers your accept/reject choice so we don’t re-prompt you.	Until you clear it
`tradecalculator-history`	localStorage	Your recent calculations list, stored on your own device.	Until you clear it
`tradecalculator-unit-*`	localStorage	Unit preferences (mm/m, kg/lbs) so a calculator opens in your preferred unit.	Until you clear it

3.2 Analytics (optional — only if you consent)

Name	Set by	Purpose	Retention
`_ga`, `_ga_*`	Google Analytics 4	Aggregate usage measurement (page-views, click events, device type).	13 months
`_clck`, `_clsk`, `MR`, `MUID`	Microsoft Clarity	Anonymised session replay and heatmaps to improve usability.	Up to 13 months

4. How to block or remove storage entries

Banner:click “Reject” on the cookie banner. Analytics and Clarity will not load at all.
Browser:clear storage from browser settings. In Chrome: Settings → Privacy and security → Cookies and other site data → See all site data → search “tradecalculator” → Delete. Other browsers have equivalent tools.
Opt-out tools: install Google’s Analytics Opt-out Browser Add-on to block GA4 on every site you visit.

5. Third-party cookies

Any third-party cookies listed above are set by the third parties (Google, Microsoft). We do not control their cookie policies. See their policies directly: Google, Microsoft.