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RelentlessData Engineering

Cookie policy

Last updated: 9 August 2026

The short version

This site sets no cookies. Not ours, not anyone else’s, not before you agree and not after. That is why you were not shown a cookie banner: there is nothing to ask you about.

It stores exactly one thing on your device, and only if you ask it to: which colour scheme you prefer.

This page covers cookies and the equivalent technologies, localStorage and similar, because the law that governs them (PECR reg. 6) is about storing or reading information on your device, whatever the mechanism is called. A policy that said “no cookies” and stopped there would be technically true and practically misleading.

The one thing stored on your device

Name rd-colour-scheme
Mechanism localStorage, not a cookie
What it holds The word light or the word dark
When it is written Only when you press the light and dark toggle in the header. It is never written on page load, and never written for a visitor who does not use the toggle
Why So the site opens in the scheme you chose last time instead of forgetting it
Lifetime Until you clear it. It has no expiry of its own
Sent to a server? No. localStorage is never transmitted with a request, and nothing on this site reads it except the code that applies your choice in your own browser

If you have never touched the toggle, this entry does not exist and the site follows your operating system’s light or dark setting instead. No consent is required for it: it stores nothing but a preference you set yourself, and the site cannot honour that preference without it.

Analytics: cookieless, and only when it is switched on

We use Cloudflare Web Analytics, served from static.cloudflareinsights.com, and only while an analytics site tag is configured. While none is configured, nothing loads and this site makes no third-party requests at all. When it does run, it is the only third-party request this site makes, and it exists so we can see which pages are read and which are ignored.

It sets no cookie and stores nothing on your device, so PECR’s consent requirement is not engaged by it. It reports page views, referrers and countries as aggregated counts. It does no cross-site tracking, builds no advertising or behavioural profile, does not fingerprint your browser, and has no persistent identifier that would let it recognise you on a later visit.

The privacy notice covers what it collects, and what it does not, in more detail.

Booking a call

Our booking calendar is not embedded here. The contact page links out to it, and the link opens in a new tab. Nothing from the scheduler loads on this site, so it can set nothing on your device from these pages.

Once you follow that link you are on the scheduler’s own site (Calendly), and its cookies and its policies apply there. Calendly documents its own at calendly.com/legal/cookie-policy. That is the point of the link rather than an embed: the choice to visit is yours, and it is visible.

What we deliberately do not use

Clearing the one entry

Press the toggle to change your choice, or clear site data in your browser to remove the entry entirely: Chrome, Firefox, Safari, Edge. Clearing it puts the site back to following your operating system’s setting.

Questions

Email info@relentlessdata.co.uk. See also the privacy notice for what happens to personal data more broadly.