Raw clicks refer to the total number of clicks on the ad placed on the publisher website. Raw clicks dont take into account the source of the clicks. Independent of where the clicks come from, as long as the link receives a click, it is registered as a raw click. For example, if someone from the same IP address clicks on a specific ad for 5 times in a day, it is counted as 5 raw clicks. The raw clicks number is not useful in identifying the number of unique visitors to the website. It counts clicks from repeat visitors also.