Cookie Policy
Last updated: September 15, 2026
This Cookie Policy explains what cookies are, which ones Share a Calendar sets, what each one is for, and how you can control them. It should be read alongside our Privacy Policy, which covers personal data more broadly.
What cookies are
A cookie is a small text file that a website asks your browser to store. It is sent back to that site on later visits, which is how a site can
remember that you are signed in or that you prefer Monday-start weeks. Some cookies are deleted when you close the browser (session cookies) and
some persist for a set period (persistent cookies). Related technologies such as localStorage work similarly; we use
localStorage to keep the calendar notes of visitors who are not signed in, and those notes never leave your device.
Cookies we set ourselves
| Name | Purpose | Type | Expires |
|---|---|---|---|
calsess | Keeps you signed in and secures forms against cross-site request forgery. Set for every visitor because the anti-forgery token depends on it. | Strictly necessary | Session / 30 days |
cal_country | Remembers the country whose holidays you selected, so you do not have to choose again. | Preference | 1 year |
cal_weekstart | Remembers whether you want weeks to start on Sunday or Monday. | Preference | 1 year |
cal_holidays | Remembers whether you chose to show or hide holidays on the grid. | Preference | 1 year |
cal_weeks | Remembers whether ISO week numbers are shown. | Preference | 1 year |
None of the cookies above track you across other websites, and none are used for advertising profiles.
Cookies set by third parties
Google AdSense. Advertising on this site is served by Google. Google and its partners may set cookies to measure how often an advert has been shown, to prevent fraud, and — only where you have consented — to show adverts based on your previous browsing. Details are in How Google uses information from sites that use its services.
Google Analytics. Where enabled, this measures which pages are popular and how visitors move through the site, with IP anonymisation switched on. It is used for improving the site, not for advertising.
Your choices
If you are in the European Economic Area, the United Kingdom or Switzerland, you are shown a consent message before any advertising cookies that require consent are set, delivered through a Google-certified Consent Management Platform. You can change or withdraw that consent at any time using the "Privacy & ad settings" link in the footer of every page.
Independently of that, every browser lets you block or delete cookies — usually under Settings › Privacy. You can also turn off personalised advertising at Google Ads Settings, or use the industry opt-out tools at aboutads.info and youronlinechoices.eu.
How long we keep cookie data
Preference cookies expire one year after they were last set and are refreshed each time you change a setting. The session cookie lasts for the browser session, or up to 30 days if you stay signed in, and is destroyed when you sign out. We do not combine cookie data with any other data set, and we do not sell it. Third-party cookies are governed by the retention policies of the provider that set them, which are described in their own policies linked above.
Do Not Track and Global Privacy Control
Browsers can send a "Do Not Track" header or a Global Privacy Control signal. There is still no agreed industry standard for how sites must respond to Do Not Track, so like most sites we do not change behaviour based on it alone. Consent for advertising cookies in the EEA, UK and Switzerland is handled through the consent message described above, which is the mechanism that actually controls whether those cookies are set.
Be aware that blocking the strictly necessary cookie will prevent you from signing in and will stop forms such as the contact form from working, because the anti-forgery protection depends on it. Blocking preference cookies simply means the site forgets your country and layout choices between visits. Questions about any of this? Get in touch.