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Cookie Notice

Last updated: October 23, 2026

HDIS uses cookies and similar browser storage to run the site and remember choices. Our Privacy Policy explains how we handle personal data.

What we use

Cookie and browser storage categories
CategoryPurpose and providerTypical duration
Strictly necessary (always on)HDIS: sign-in, account security and remembering cookie choices.Sign-in: minutes to 90 days; choices: one year; other security storage: a visit or until cleared.
Preferences (functional)HDIS: notification badges and remembering dismissed tips or prompts.Until you clear site data.
AnalyticsGoogle Analytics 4: visits and activity. HDIS: retailer clicks and sponsored-banner views.Google: normally up to two years; banner memory: this visit.
AdvertisingGoogle AdSense: ad delivery, repeat limits, fraud prevention, measurement and optional personalisation. We are not showing AdSense ads yet.None currently; durations will depend on Google's cookies.

Google's consent tool is not in use yet, so it sets no consent cookies here.

Your choices

In the EEA, UK and Switzerland, analytics and advertising cookies stay off until consent. Elsewhere, analytics and ad personalisation are on by default; you can opt out. Do Not Track and Global Privacy Control turn off ad personalisation there, not analytics. When ads launch, non-personalised ads may still use cookies.

Use Cookie Preferences in the footer anytime to change analytics or ad-personalisation choices. Browser settings let you clear cookies and site data; this may sign you out. See how Google uses data.

Video players

YouTube (Google), Vimeo and TikTok players load only after you press play; they may then receive your data and set cookies. Cookies can last for a visit or longer: YouTube, Vimeo and TikTok explain purposes and durations.

Security and notifications

Cloudflare Turnstile checks sign-in requests for bots; HDIS sets no cookie for this check.

Manage browser notification permission in your browser's site settings.