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Precautions

Precautions and prohibitions for Ad Insertion
Information Icons
Rules for Using Characters and Symbols

1. Ad Specifications

Display Ads (Auction)

Units	Required/ Optional	Displaying Ad	Item	Description
Ads	Required	Static	Logo	Pixel size （width × height）	600pixel x 600pixel
				File size	Up to 3 MB per file
				Image flame	Not available
				Cautions	Prepare Logo images with pixel size specified above.
		Dynamic	Button	pull-down menu option	Select an option from the pull down on Create Ad page.
		Static	Advertiser Indication	Number of characters	Up to 20 characters
				Supported character types, space type and Symbol types	See following page Supported character types, space type and Symbol types Up to two symbols of the same type can be used in the title/description. When any of the letters "g," "j," "p," "q," and "y" are included in the advertiser indication or the title of the card, the lower part of the letter may be displayed partially missing.
				Cautions	Learn more about related Advertisement Editorial Guidelines.
	We recommend that you use the following "Final URL" for the link settings.
	When using "Final URL" (Recommended)
	Required	Dynamic	Final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters.
	-	Dynamic	Display URL	Automatically generated from the set final URL.
	Optional	Dynamic	Smartphone final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. Note Don't use deep linking. It may not work correctly.
	Optional	Dynamic	Tracking URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. Note Don't use deep linking. It may not work correctly.
	Optional	Dynamic	Custom parameter	Name	Number of characters	Up to 16 characters
					Supported characters	Single byte alphanumeric characters
				Value	Number of characters	Up to 200 characters
					Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
	*When using　“Destination URL” Available until October 2022**
	Required	Dynamic	Display URL	Number of characters	4 to 29 characters
	Required	Dynamic	Destination URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters.
Cards	Required	Static	Image	Aspect ratio	Recommended For devices with high-resolution displays, we recommend creating the following recommended sizes (or larger).
					Recommended pixel size （width x height）	（Minimum pixel size ）
				1:1	1200pixel x 1200pixel	(600pixel x 600pixel)
				File size (Max size per file)	Recommended: Up to 150 KB (Max 3MB) Note *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.
				File format	GIF89a、JPEG、PNG
				Animation	Not available
				Alt text (ALT aspect)	Not available
		Static	Title	Number of characters	Up to 20 characters
				Supported character types, space type and Symbol types	See following page Supported character types, space type and Symbol types Up to two symbols of the same type can be used in the title/description. When any of the letters "g," "j," "p," "q," and "y" are included in the advertiser indication or the title of the card, the lower part of the letter may be displayed partially missing.
		Dynamic	Description	Number of characters	Up to 38 characters
				Supported character types, space type and Symbol types	See following page Supported character types, space type and Symbol types *Up to two symbols of the same type can be used in the title/description.
	We recommend that you use the following "Final URL" for the link settings.
	When using "Final URL" (Recommended)
	Required	Dynamic	Final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters.
	Optional	Dynamic	Smartphone final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. Note Don't use deep linking. It may not work correctly.
	*When using　“Destination URL” Available until October 2022**
	Required	Static	Destination URLs	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	* URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. * You can set a different destination URL for each carousel card.

Cautions

* The information icon is displayed at the bottom-right corner of ads.
This icon is included in the specifications for banners distributed by Yahoo! JAPAN, so it does not need to be incorporated into creatives.

*Add at least 2 sets of cards and up to 10 sets.

Ad Expression Restrictions

* Items that must be included in banners must be provided in the image for each carousel card.
Examples: Alcoholic beverage caution (message such as "Underage drinking is prohibited"), or the like.

Display Ads (Guaranteed)

*Display Ads (Guaranteed) is available for specific advertisers.
Please refer to this page for details about Display Ads (Guaranteed) packages.

・Display Assured Environments (Display Ads (Guaranteed))

Units	Required/ Optional	Displaying Ad	Item	Description
Ads	Required	Static	Advertiser Indication	Number of characters	Up to 20 characters
				Supported character types, space type and Symbol types	See following page Supported character types, space type and Symbol types Up to two symbols of the same type can be used in the title. When any of the letters "g," "j," "p," "q," and "y" are included in the advertiser indication or the title of the card, the lower part of the letter may be displayed partially missing.
				Cautions	Learn more about related Advertisement Editorial Guidelines.
	Required*	No display*	Logo	Pixel size （width × height）	600pixel x 600pixel
				File size	Up to 3 MB per file
				Image flame	Not available
				Cautions	Prepare Logo images with pixel size specified above. This requirement is subject to change with the UI or system modifications in the future. The logo image is subject to review. Add appropriate creatives.
	Required	Dynamic	Final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters.
	-	Dynamic	Display URL	Automatically generated from the set final URL.
	Optional	Dynamic	Smartphone final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. Note Don't use deep linking. It may not work correctly.
	Optional	Dynamic	Tracking URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. Note Don't use deep linking. It may not work correctly.
	Optional	Dynamic	Custom parameter	Name	Number of characters	Up to 16 characters
					Supported characters	Single byte alphanumeric characters
				Value	Number of characters	Up to 200 characters
					Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
Cards	Required	Static	Image	Aspect ratio	Recommended For devices with high-resolution displays, we recommend creating the following recommended sizes (or larger).
					Recommended pixel size （width x height）	(Minimum pixel size )
				16:9	1280pixel x 720pixel	(640pixel x 360pixel)
				File size (Max size per file)	Recommended: Up to 150 KB (Max 3MB) Note *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.
				File format	GIF89a、JPEG、PNG
				Animation	Not available
				Alt text (ALT aspect)	Not available
		Static	Title	Number of characters	Up to 18 characters
				Supported character types, space type and Symbol types	See following page Supported character types, space type and Symbol types Up to two symbols of the same type can be used in the title. When any of the letters "g," "j," "p," "q," and "y" are included in the advertiser indication or the title of the card, the lower part of the letter may be displayed partially missing.
	Required	Dynamic	Final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters.
	Optional	Dynamic	Smartphone final URL	Number of characters	Up to 1024 characters
				Supported characters	Single byte alphanumeric characters (RFC3986 and {}) * [] cannot be used.
				Cautions	URLs beginning with a “.” (dot) cannot be used. You cannot register URLs deviating to RFC3986, such as URLs including Japanese characters. Note Don't use deep linking. It may not work correctly.

Cautions

* The information icon is displayed at the top-right corner of ads.
This icon is included in the specifications for banners distributed by Yahoo! JAPAN, so it does not need to be incorporated into creatives.

*Add at least 2 sets of cards and up to 10 sets.

Ad Expression Restrictions

* Items that must be included in the ad must not be entered at the top-right corner (Width 34pixel x length 30pixel).

* Items that must be included in banners must be provided in the image or title for each carousel card.
Examples: Alcoholic beverage caution (message such as "Underage drinking is prohibited"), or the like.

2．Cautions/Ad behavior (Display Ads (Guaranteed))

Cautions/Ad behavior

Note
*When any of the letters "g," "j," "p," "q," and "y" are included in the advertiser indication or the title of the card, the lower part of the letter may be displayed partially missing.

*Click the image and it will appear enlarged in a new tab of your browser.