Ad viewability is about whether people can actually see your ads when they load on a page. If your ad loads at the bottom of a page and no one scrolls down, it might not count as viewable. When ads are not seen, they’re less likely to bring clicks or conversions, which means lower earnings. Advertisers also care about viewability, so some only pay when ads are clearly seen for a certain amount of time. If your display traffic comes from placements with poor viewability, your income might be lower. It helps to focus on placements that have a good record of showing ads in spots where people actually look. Has anyone checked their viewability rates before?