Cookie Policy

Effective 7 April 2026 · Astra Castra Ltd

1. What are cookies

Cookies are small text files stored on your device when you visit a website. They help the site function correctly and can remember your preferences. Some cookies are essential for the site to work; others are used for analytics or advertising.

2. Strictly necessary cookies

These cookies are required for our site to function and cannot be switched off. They’re only set in response to actions you take, such as logging in or completing a purchase.

CookieProviderPurposeType · Duration

__sessionClerkMaintains your authenticated session so you stay logged inEssential · Session

__client_uatClerkTracks authentication state to keep your session in sync across tabsEssential · 1 year

__stripe_midStripeFraud prevention — helps Stripe identify your device during checkoutEssential · 1 year

__stripe_sidStripeSession identifier for secure payment processingEssential · 30 minutes

particular_consentPARTICULARRemembers your cookie preferencesEssential · 1 year

3. Analytics cookies (optional)

These cookies help us understand how visitors use our site so we can improve it. They only fire if you opt in via our cookie banner.

CookieProviderPurposeType · Duration

_ga, _ga_*Google AnalyticsDistinguishes unique visitors and tracks aggregate site usage. IP addresses are anonymised.Analytics · 2 years

_clck, _clskMicrosoft ClarityRecords anonymised session replays and heatmaps to help us improve the siteAnalytics · 1 year / 1 day

Vercel Analytics and Speed Insights are also used for basic performance monitoring. These tools are cookieless and do not collect personally identifiable information.

4. Marketing cookies (optional)

These cookies measure ad effectiveness and help us reach the right audience. They only fire if you opt in via our cookie banner. We may use them to track conversions on Meta (Facebook/Instagram), TikTok, or Google Ads campaigns.

CookieProviderPurposeType · Duration

_fbpMeta (Facebook)Conversion tracking and retargeting for Meta adsMarketing · 3 months

5. Managing your preferences

You can change your cookie preferences at any time by clicking “Cookie preferences” in the footer of any page on our site. You can also control and delete cookies through your browser settings — consult your browser’s help documentation for instructions.

Please note that disabling essential cookies may prevent you from logging in or completing purchases on our site.

6. Changes to this policy

We will update this Cookie Policy if we add or change the cookies we use. Material changes will be reflected in the effective date above.

7. Contact

If you have questions about our use of cookies, contact us at hello@particular.health.