3 ms·

As Faisal mentioned, it's most likely the first two, but it could also be: * User having JavaScript disabled * Users leaving before page and JavaScript loads,

by XCSme 6y ago

As Faisal mentioned, it's most likely the first two, but it could also be: * User having JavaScript disabled * Users leaving before page and JavaScript loads, or before GA request is sent (CF would track the visit, GA not)