Come the fourth quarter (Oct. through Dec.) of each year, most publishers tend to see a seasonal boost in traffic and earnings. Holidays—both commercial and cultural—are the driving force of this boost.

Ad viewability is a metric of determining how visible ads are to readers on your website. For an ad to be considered “viewed,” at least 50% of the ad must be displayed on the reader’s screen for at least one second (for display ads) or two seconds (for video ads).