Cookie policy

Cookies are small files a website saves in your browser. Here is every one we use, what it does and how long it lasts.

Necessary

Always on. They remember your choices and keep the site working.

Name	Set by	What it does	Lasts
`dl-consent`	Dot & Loop (browser storage)	Remembers your cookie choices	Until you clear it
`dl-first-visit, dl-donate-shown`	Dot & Loop (browser storage)	Shows the support note at most once a week, never on a first visit	Until you clear it
`Worksheet settings`	Dot & Loop (browser storage)	Remembers options like paper size	Until you clear it

Analytics

Only with your consent in the UK, EEA and Switzerland.

Name	Set by	What it does	Lasts
`_ga`	Google Analytics	Tells visits apart with a random ID	2 years
`_ga_*`	Google Analytics	Keeps track of the current visit	2 years
`_clck`	Microsoft Clarity	Remembers a random ID for this browser	1 year
`_clsk`	Microsoft Clarity	Groups page views into one visit	1 day

Advertising

Once ads are running, and only with your consent in the UK, EEA and Switzerland.

Name	Set by	What it does	Lasts
`__gads, __gpi`	Google AdSense	Shows and measures ads, limits repeats	13 months
`IDE, and others on doubleclick.net`	Google	Shows ads and measures them across sites	Up to 13 months

Turning cookies off

Use “Cookie settings” at the bottom of any page, or block cookies in your browser settings. Worksheets still work with every cookie except the necessary ones turned off.

Google and Microsoft may rename or add cookies over time. We check this list when we change our tools.

Last updated October 13, 2026.