Effective Date: 25 March 2026 | Last Updated: 25 March 2026
This Cookie Policy explains how Blether Health Limited (SC883133) (“Blether”, “we”, “us”) uses cookies and similar technologies on blether.health and within our practice management platform. It should be read alongside our Privacy Policy.
We comply with the Privacy and Electronic Communications Regulations 2003 (“PECR”), as amended by the Data (Use and Access) Act 2025, the UK GDPR, and guidance from the Information Commissioner's Office (“ICO”).
Cookies are small text files placed on your device when you visit a website. This policy also covers similar technologies subject to PECR, including web storage, tracking pixels, and device fingerprinting.
Essential for the Service to function. These do not require consent under PECR.
| Name | Purpose | Duration | Provider |
|---|---|---|---|
| [session_id] | Authenticated session | Session | Blether |
| [csrf_token] | CSRF protection | Session | Blether |
| [cookie_consent] | Your consent preferences | 12 months | Blether |
| [sb-*-auth-token] | Authentication | Session | Supabase |
Enable preferences like display settings and timezone. We request consent before setting these, unless they fall within PECR exemptions introduced by the Data (Use and Access) Act 2025.
| Name | Purpose | Duration | Provider |
|---|---|---|---|
| [preferences] | UI preferences | 12 months | Blether |
| [timezone] | Timezone for scheduling | 12 months | Blether |
Help us understand how visitors use the Service. These require your explicit consent and are not set until you opt in.
| Name | Purpose | Duration | Provider |
|---|---|---|---|
| ph_phc_*_posthog | Tracks usage behaviour, page views, and user journeys | 365 days | PostHog |
PostHog also uses localStorage to store additional analytics data alongside the cookie. We use PostHog's consent management features to ensure no analytics data is collected or stored before you opt in.
Used to measure the effectiveness of our advertising campaigns. These require your explicit consent and are not set until you opt in.
| Name | Purpose | Duration | Provider |
|---|---|---|---|
| _gcl_aw | Stores Google Ads click info (gclid) for conversion attribution | 90 days | |
| _gcl_au | Conversion linker for cross-domain ad tracking | 90 days | |
| _gcl_dc | Stores click info from Display Network campaigns | 90 days |
Google Ads cookies track whether clicks on our advertisements lead to sign-ups or other actions on our site. They do not give us access to your personal browsing activity. We implement Google Consent Mode to ensure these cookies are only set after you give consent.
Some cookies are set by third-party services we integrate. We do not control these cookies — refer to each provider's own policies:
When you first visit our website, a cookie banner lets you accept or reject all non-essential cookies in one click. Our consent mechanism:
You can change your preferences at any time via the “Cookie Preferences” link in our website footer, or through your browser settings. Blocking strictly necessary cookies may affect Service functionality.
Where cookies process personal data, we do so under the UK GDPR. Analytics and marketing cookies rely on consent (Art. 6(1)(a)). Strictly necessary cookies rely on legitimate interests (Art. 6(1)(f)) or contract performance (Art. 6(1)(b)). See our Privacy Policy for full details.
Session cookies are deleted when you close your browser. Persistent cookies last for the durations listed above, or until you delete them via your browser settings.
We may update this policy to reflect changes in our cookies, technology, or the law. Material changes will be flagged via the website or consent mechanism.
Email: privacy@blether.health
Post: 11 Crawfurd Gardens, Glasgow, G73 4JP
ICO: ico.org.uk | 0303 123 1113