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• NecessaryAlways on

  Required for the site to function — page delivery, security, and remembering this consent choice. These never identify you for advertising and cannot be switched off.

• Analytics

  Helps us see which pages are useful and where people get stuck. Without this we still count visits anonymously, but cannot tell a returning visitor from a new one.

• Advertising

  Lets us measure whether our ads actually lead to anything, and avoid showing you the same ad repeatedly. Off by default.

We also count visits anonymously, without cookies and without storing anything on your device. This needs no consent, but you can object to it at any time — see our privacy policy for how.