Evaluation Events | Data Science

Essential storage — always active

Keeps you signed in and remembers your preferences. This stays active with either choice below.

Analytics — optional

Only if you allow it, we count page views, daily visitors and recent activity using a random daily device identifier and broad page, source, device and country categories. General audience totals are not linked to your account. Accepting also enables ad campaign measurement for 30 days using a separate random identifier to measure exploration, account creation and returning days. Campaign attribution can be linked to your newly created account. We do not send page addresses.

Analytics totals are kept for 13 months; general audience identifiers expire within 48 hours. Campaign attribution lasts 30 days. Reopen Cookie preferences at any time to change your choice or turn analytics off.