Legal
Cookie Policy
Last updated: 30 April 2026
Every cookie The Online Calendar may set on your device is listed here, along with who sets it, what it does, and how long it lasts.
We use cookies and similar technologies to operate the site, measure traffic, and deliver advertising through Google AdSense. We never sell personal data, never use cookies that fingerprint you across other sites, and never embed social-media widgets that track you. Cookies that are not strictly necessary load only after you grant consent via the banner that appears on first visit.
What cookies we may set
| Cookie | Set by | Purpose | Retention | Category |
|---|---|---|---|---|
| toc.consent.v1 | The Online Calendar | Stores your cookie-consent choice (granted / denied) so the consent banner doesn't reappear on every visit. | Until you clear browser storage | Strictly necessary |
| _ga | Google Analytics (G-X7TPLLY6PT) | Distinguishes unique visitors. Set only after you accept analytics in the cookie banner. | 2 years | Analytics (consent required) |
| _ga_X7TPLLY6PT | Google Analytics | Persists session state for the GA4 property. Set only after you accept analytics. | 2 years | Analytics (consent required) |
| _gid | Google Analytics | Distinguishes unique visitors over a 24-hour window. | 24 hours | Analytics (consent required) |
| __gads | Google AdSense | Measures ad interactions and frequency-caps how often you see the same ad; helps detect ad fraud. Set only after you accept advertising. | 13 months | Advertising (consent required) |
| __gpi | Google AdSense | Stores an ad-personalization identifier. Not set when you decline advertising consent. | 13 months | Advertising (consent required) |
| IDE | Google DoubleClick (doubleclick.net) | Delivers and measures ads and, where you allow it, retargets based on prior visits. | Up to 13 months | Advertising (consent required) |
| test_cookie | Google DoubleClick (doubleclick.net) | Checks whether your browser supports cookies before ad cookies are set. | 15 minutes | Advertising (consent required) |
Cookieless tracking we run
Vercel Web Analytics and Vercel Speed Insights collect aggregate pageview counts and Core Web Vitals samples without setting cookies and without identifying you personally. Both run regardless of cookie consent and are exempt from the GDPR consent requirement under the "strictly necessary" or "legitimate interest" categories.
Consent Mode v2
We use Google's Consent Mode v2 framework. On your first visit, all advertising and analytics cookies are denied by default. Google Analytics still loads but operates in cookieless mode — anonymous pings are sent to Google with no _ga cookie. In the EEA, UK, and Switzerland a Google-certified consent management platform asks for your advertising consent; everywhere else, accepting in the banner also enables personalized ads. Decline, and both analytics and advertising stay in cookieless / non-personalized mode.
How to control cookies
- Re-open the consent bannerat any time via the "Cookie preferences" link in the footer.
- Browser settings — every modern browser lets you block, restrict, or delete cookies. Chrome · Firefox · Safari · Edge.
- Google Analytics opt-out— install Google's official browser add-on: tools.google.com/dlpage/gaoptout.
Your rights
See the Privacy Policy for the full description of your rights to access, delete, restrict, or port the data we hold about you under GDPR, UK GDPR, CCPA, and similar laws.
Changes to this policy
When we add or change a cookie, we update this page and the "Last updated" date at the top. Material changes — a new cookie category or a new third-party processor — trigger the consent banner to reappear on your next visit.