Footer (Sticky Ads) A sticky ad is an ad unit which stays visible on the page while the user scrolls through the content of your page. Sticky ads are a non-intrusive format that can be very effective to increase CTR and your Active View metrics. Footer sticky ads are present at the bottom of the webpage. They generally spread from one end to the other end of the screen in a landscape manner. Footer sticky ads mostly consists of these ad sizes. Indicating that creative size will be rather small. Therefore, it is essential to fit the information to the banner so it would be well visible.   Creative Size Impressions 320x50 595,236,964 300x250 175,641,606 300x50 113,459,929 320x100 107,423,631 728x90 67,648,701 300x100 53,788,083 250x250 24,159,372 336x280 16,187,811 120x600 14,937,884 320x480 10,795,127 970x90 9,455,822 300x600 9,376,698 468x60 5,289,943 728x40 3,436,014 200x200 2,565,934 160x600 2,551,965 Additionally, almost 84% of all Footer sticky ad  traffic comes from sites.  Types Impressions Site 1,032,856,166 App 190,469,961 While, when it comes to countries these are the  leading markets with the most traffic for Footer sticky ad. Country Impressions South Africa 311,413,043 Indonesia 149,453,649 Serbia 144,079,956 Nigeria 102,937,638 Latvia 78,213,702 Bangladesh 41,432,005 Kenya 35,548,890 Japan 19,843,346 Thailand 18,588,615 Ghana 18,200,852 Brazil 17,927,013 South Korea 16,374,853 Cambodia 14,039,755 Israel 12,866,074 India 11,770,827 Turkey 11,482,200 Spain 11,340,955 Malaysia 11,239,907 Australia 10,963,189 Angola 9,288,849 Global 1,223,326,127 With default optimisation Footer ads may deliver these kind of results:  Country Viewability CTR Nigeria 77.00% 0.16% Kazakhstan 80.46% 0.39% Kenya 83.06% 0.13% Indonesia 78.84% 0.23% Bangladesh 87.32% 0.12% Total: 81.54% 0.21% Where the split between apps and sites was rather similar.  Apps Sites 52.78% 47.22%