1.PC
2.Smaertphone
Precautions
*Precautions and prohibitions for Ad Insertion
*Information Icons
1.PC
Required
/Optional
Item
Details
　　
Main banner
Banner options
Video
Video thumbnail image
*This is a static image displayed before and after video playback.
Static image
Carousel
Required
Image/Video　
Number of ad creatives per request
1
1
1
3
2
Display size
Aspect ratio 16:9
Aspect ratio 16:9
Aspect ratio 16:9
Aspect ratio 16:9
Aspect ratio 16:9
Fixed width 200 pixel

*two creatives displayed together
Creative size 
(width x length)
*Videos with a review status of "Under review" or "Approved" in the Display Ad account, an aspect ratio of 16:9, and a playback time of 60 seconds or less can be displayed and selected.

*Learn more_ Ad Insertion Rules for Display Ads videos.
640 pixel x 360 pixel
640 pixel x 360 pixel
640 pixel x 360 pixel
640 pixel x 360 pixel
File size
Up to 150 KB
Up to 150 KB
Up to 150 KB
Up to 150 KB
File format
JPEG
JPEG
JPEG
JPEG
Total bit rate value
ー
ー
ー
ー
Animation
Not available
Not available
Not available
Not available
ALT text
Not available
Not available
Not available
Not available
Required
Display URL　　　
Number of Display URLs
1 placement
1 placement
1 placement
1 placement x 3 URLs
1 placement x 2 URLs
Characters
1,024byte　　　　
How to count
1 byte for half-width character, and as 3 byte for full-width character　　
Supported characters
half-width alphanumeric, Japanese (RFC3986,RFC3987)　　　
Optional
Tracking URL
Number of Tracking URLs
1 placement
1 placement
1 placement
1 placement x 3 URLs
1 placement x 2 URLs
Characters
1,024byte
How to count
1 byte for half-width character, and as 3 byte for full-width character　　
Supported characters
half-width alphanumeric, Japanese (RFC3986,RFC3987)　　
 
Disclaimer
* Note that it may be impossible to distribute or correctly (promptly) display ads, or to display a link destination due to browser settings, operating system-specific specifications, firewalls, security software, plug-in software, or the operation state, communication environment or other settings of the user terminal.
* Whether to play MP4-format content is determined by evaluating the bandwidth. MP4 content is not played in communication environments unsuited to its playback. An alternate image is posted in this case.
Cautions
* The information icon is displayed at the top-right corner of ads. For Carousels the allow icon is displayed at the left and right of the ads. The number of carousels are displayed at the lower right corner of the image.Main banner: The play button and the video player control are distributed by Yahoo! JAPAN.These icons are included in the specifications for banners distributed by Yahoo! JAPAN, so it does not need to be incorporated into creatives.
* A frame will be added when ads are delivered.
* Yahoo! JAPAN will reduce the image size to fit the placement where the ads are delivered. *The display size may change when ads are delivered.
* Files 150 KB or more, or either the width or length exceeds 2000px, are compressed when uploading.If the compressed file is larger than 150KB, an error will occur and uploading will fail.
* Video and video thumbnail is required for videos.
* Videos start playing when the play button is clicked.
Restrictions on ad expressions
* Be sure to indicate the required items described in the "Restrictions on Expressions in Advertisements" section in Chapter 9 of the "Yahoo! JAPAN Advertisement Editorial Guidelines" in the main banner and banner options.
Example: name of sponsor, alcoholic beverages (e.g. text stating that "Alcoholic beverages are only for those over 20 years old,") etc.
* Indicate the required items in the video thumbnail image for video ads. In case of representations that suggest superlative or number one in the video, indicate the required items (near the display text) in the video.
* Indicate the required items in the first carousel card for carousel ads. In case of alcoholic beverage promotions and representations that suggest superlative or number one, indicate the required items on the carousel card that will display.
*Do not indicate items other than the required Items in the following area.
(1) Common for all banners
・Display position of the "information icon (Width 19px×Length 18px)" in the upper right corner.
(2) Main banner: Carousel
・Display position of the "arrow icon (Width 20px×Length 40px)" in the left and right sides.
・Display position of the "number of cards (Width 30px×Length 20px)" in the bottom-right corner.
(3) Main banner: Video thumbnail image
・Display position of the "play button (Width 68px×Length 68px)" in the center.
* Search boxes or expressions to facilitate the search actions are not acceptable.
* All banners must be in different designs. You can use the same creative for video, video thumbnail, static image and carousel of the main banner because they won't be displayed together.
Ad relevance
(1) Common for main banners
・Keywords, creatives, link destination pages must have relevancy.
・When your keyword is a name of a title (of movie, animation, manga, game, or TV program), indicate the logo of the title in the creative (or video thumbnails for videos).
・When your keyword is a name of a title (of movie, animation, manga, game, or TV program), place the image of a person who participated in the program or a logo of the title in an eye-catching location such as the first view of the destination page.
(2) Banner options
Creatives and link destination pages must have relevancy. *Relevancy with the keyword is not required
 
Ad Behavior for PC
2.Smartphone
Required
/Optional
Item
Details　　　　　
　　
Main banner　　　
Banner options

Video
Video thumbnail image
*This is a static image displayed before and after video playback.
Static image
Carousel
Required
Image/Video
Number of ad creatives per request
1
1
1
3
2
Display size
Aspect ratio 16:9

Maximum width 400pixel
Aspect ratio 16:9

Maximum width 400pixel
Aspect ratio 16:9

Maximum width 400pixel
Aspect ratio 16:9

Maximum width 400pixel
Aspect ratio 16:9
Fixed length 120 pixel

*Displayed in Carousel
Creative size (width x length)
*Videos with a review status of "Under review" or "Approved" in the Display Ad account, an aspect ratio of 16:9, and a playback time of 60 seconds or less can be displayed and selected.

*Learn more_ Ad Insertion Rules for Display Ads videos.
640 pixel x 360 pixel
640 pixel x 360 pixel
640 pixel x 360 pixel
640 pixel x 360 pixel
File size
Up to 150 KB
Up to 150 KB
Up to 150 KB
Up to 150 KB
File format
JPEG
JPEG
JPEG
JPEG
Total bit rate value
ー
ー
ー
ー
Animation
Not available
Not available
Not available
Not available
ALT text
Not available
Not available
Not available
Not available
Required
Display URL　　　
Number of Display URLs
1 placement
1 placement
1 placement
1 placement x 3 URLs
1 placement x 2 URLs
Characters
1,024byte　　　　
How to count
1 byte for half-width character, and as 3 byte for full-width character　　
Supported characters
half-width alphanumeric, Japanese (RFC3986,RFC3987)　　　
Optional
Tracking URL　　　
Number of Tracking URLs
1 placement
1 placement
1 placement
1 placement x 3 URLs
1 placement x 2 URLs
Characters
1,024byte　　　　
How to count
1 byte for half-width character, and as 3 byte for full-width character　　
Supported characters
half-width alphanumeric, Japanese (RFC3986,RFC3987)　　　
 
Disclaimer
* Note that it may be impossible to distribute or correctly (promptly) display ads, or to display a link destination due to browser settings, operating system-specific specifications, firewalls, security software, plug-in software, or the operation state, communication environment or other settings of the user terminal.
* Whether to play MP4-format content is determined by evaluating the bandwidth. MP4 content is not played in communication environments unsuited to its playback. An alternate image is posted in this case.
Cautions 
* The information icon is displayed at the top-right corner of ads. For Carousels the allow icon is displayed at the left and right of the ads. The number of carousels are displayed at the lower right corner of the image.Main banner: The play button and the video player control are distributed by Yahoo! JAPAN.For the banner options, Yahoo! JAPAN will display "PR" in the upper left corner of the ad.​These icons are included in the specifications for banners distributed by Yahoo! JAPAN, so it does not need to be incorporated into creatives.
* Banner option is displayed as carousel. When the image is displayed in a carousel, an "indicator" may appear below the image depending on the device and OS.
* A frame will be added when ads are delivered.
* Yahoo! JAPAN will reduce the image size to fit the placement where the ads are delivered. *The display size may change when ads are delivered.
* Files 150 KB or more, or either the width or length exceeds 2000px, are compressed when uploading.If the compressed file is larger than 150KB, an error will occur and uploading will fail.
* Video and video thumbnail is required for videos.
* Videos start playing when the play button is clicked.
Restrictions on ad expressions
* Be sure to indicate the required items described in the "Restrictions on Expressions in Advertisements" section in Chapter 9 of the "Yahoo! JAPAN Advertisement Editorial Guidelines" in the main banner and banner options.
Example: name of sponsor, alcoholic beverages (e.g. text stating that "Alcoholic beverages are only for those over 20 years old,") etc.
* Indicate the required items in the video thumbnail image for video ads. In case of representations that suggest superlative or number one in the video, indicate the required items (near the display text) in the video.
* Indicate the required items in the first carousel card for carousel ads. In case of alcoholic beverage promotions and representations that suggest superlative or number one, indicate the required items on the carousel card that will display.
* Do not indicate items other than the required Items in the following area.
(1) Common for main banners
・Display position of the "information icon (Width 34px×Length 30px)" in the upper right corner.
(2) Main banner: Carousel
・Display position of the "arrow icon (Width 48px×Length 48px)" in the left and right sides.
・Display position of the "number of cards (Width 60px×Length 40px)" in the bottom-right corner.
(3) Main banner: Video thumbnail image
・Display position of the "play button (Width 136px×Length 136px)" in the center.
* Search boxes or expressions to facilitate the search actions are not acceptable.
* All banners must be in different designs. You can use the same creative for video, video thumbnail, static image and carousel of the main banner because they won't be displayed together.
Ad relevance
(1) Common for main banners
・Keywords, creatives, link destination pages must have relevancy.
・When your keyword is a name of a title (of movie, animation, manga, game, or TV program), indicate the logo of the title in the creative (or video thumbnails for videos).
・When your keyword is a name of a title (of movie, animation, manga, game, or TV program), place the image of a person who participated in the program or a logo of the title in an eye-catching location such as the first view of the destination page.
(2) Banner options
Creatives and link destination pages must have relevancy. *Relevancy with the keyword is not required
 
Ad Behavior for smartphones