Cookies

We use a few cookies and browser storage items to make the site work, plus Google’s advertising cookies for free visitors.

Needed for the site to work

• Sign-in cookies (names start with sb-): keep you signed in. They are only set when you sign in, and expire 24 hours after sign-in.
• ccl-theme (local storage): remembers your light or dark choice.
• ccl-history (local storage): your recent results on this device.
• ccl-dock-open (local storage): whether you left the Test hub panel open.

Advertising

Free visitors see a Google AdSense banner, and Google may set cookies to show and measure ads. Premium members see no ads. See our privacy policy for details.

Payments

Paddle’s checkout window may set its own cookies while you pay.