Yahoo! JAPAN Ads

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Ad Insertion Rules(PC/Smartphone/Tablet-type Devices) (Search Ads)

PC/Smartphone/Tablet-type Devices Ad Specifications

1. Ad Insertion Rules

Search Ads (Extended Text Ads )

Keywords Number of characters Up to 80 characters
Titles
Descriptions
Number of characters Title 1 Up to 30 characters
Title 2 Up to 30 characters
Title 3 (Optional) Up to 30 characters
Descriptions 1 Up to 90 characters
Descriptions 2 (Optional) Up to 90 characters
How to Count Count as 2 both for full-width char and half-width Katakana char, count as 1 for half-width alphanumeric
Supported character types, space type and Symbol types See following items
2. Supported character types, space type and Symbol types (for Titles, Descriptions)
*Up to two symbols of the same type can be used in the title/description.
Keyword Insertion, 
Ad Customizer
The same restrictions on the number of characters for titles/descriptions must be followed, even when the Keyword Insertion function is used.
If the number of characters exceeds the limit due to system specifications of Yahoo! JAPAN Ads, it is judged that the guideline is not violated.
Display URL
(Domain)
Automatically generated Not required
*Display URL (Domain) is automatically generated based on Landing Page URL.
Display URL
(Directory)
Number of
characters
Directory 1 Up to 15 characters
Directory 2 Up to 15 characters
How to Count Count as 2 both for full-width char and half-width Katakana char, count as 1 for half-width alphanumeric
Supported characters Single byte alphanumeric characters, Japanese characters
Keyword Insertion,
Ad Customizer
The same restrictions on the number of characters for titles/descriptions must be followed, even when the Keyword Insertion function is used.
If the number of characters exceeds the limit due to system specifications of Yahoo! JAPAN Ads, it is judged that the guideline is not violated.
Landing Page URL Number of
characters
1,024 byte
*Required
Domain must match with the “Display URL”.
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters,Japanese characters(RFC3986,RFC3987)
Smartphone Landing Page URL Number of
characters

1,024 byte

*If you don't have the page for Smartphone or using same URL for both, you don't need set this URL on your ad.

Domain must match with the “Display URL”.

How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters,Japanese characters(RFC3986,RFC3987)
Tracking URL Number of
characters
1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters,Japanese characters(RFC3986,RFC3987)
Custom Parameters name Number of
characters
16byte
How to Count 1 byte *Full-widthis not supported.
Supported characters half-width alphanumeric characters
value Number of
characters
200byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters,Japanese characters(RFC3986,RFC3987)

 

Search Ads(Dynamic Ads for Search)

Page Feed name Number of characters Up to 50 characters
Supported characters Single byte alphanumeric characters, Japanese characters(RFC3986,RFC3987)
Domain Number of characters 1,024byte
*Domain part of Main URL is up to 51 bytes
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters, Japanese characters(RFC3986,RFC3987)
Page URL Number of characters 1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters, Japanese characters(RFC3986,RFC3987)
Custom Label Number of items Up to 10 labels
Number of characters Up to 20 characters
Supported characters Single byte alphanumeric characters, Japanese characters(RFC3986,RFC3987)
Single byte symbols below can not be used. 
* >>  ==  &+
Targeting
Setting
Bid amount Up to 80,000
To specify within
URL
Number of characters 1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
To specify title
within Page URL
Number of characters 1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
To specify
contents within
Page URL
Number of characters 1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
To specify
Custom Label
Number of characters 1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Titles
Descriptions
Number ofcharacters

Title
(Not required)

Automatically generated.
Descriptions 1 Up to 80 characters
How to Count Count as 2 both for full-width char and half-width Katakana char, count as 1 for half-width alphanumeric
Supported character types, space type and Symbol types

(Descriptions)

See following items
2. Supported character types, space type and Symbol types (for Titles, Descriptions)
*Up to two symbols of the same type can be used in the title/description.
Display URL
(Domain)
(Not required) Automatically generated.
*Directory part is not editable for setting.
Landing Page
URL
(Not required) Automatically set.
Tracking URL Number of characters 1,024byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters, Japanese characters(RFC3986,RFC3987)
Custom
Parameters
name Number of characters 16byte
How to Count 1 byte *Full-width is not supported.
Supported characters half-width alphanumeric characters
value Number of characters 200byte
How to Count Count as 1 byte for half-width character, and as 3 byte for full-width character
Supported characters Single byte alphanumeric characters, Japanese characters(RFC3986,RFC3987)

2. Supported character types, space type and Symbol types (for Titles, Descriptions)

Supported Character Types

Hiragana Double byte
Katakana Double byte
Alphanumeric Double byte/Single byte

Supported Space Type

Space Single byte

Supported Symbol Types

Types Symbols
Parentheses ( ) 【 】 『 』 「 」 [ ] < > 《 》 ≪ ≫ (Double byte) 
( ) [ ] (Single byte)
*Only one set of each symbol can be used for title and description, except for ”( )” (parenthesis in double byte) and ”( )” (parenthesis in single byte).
*Only ”( )” (parenthesis in double byte) and ”( )” (parenthesis in single byte) is available on Ad Customizer.
Quotation mark ‘ ’ ` ´  “  ” (Double byte)  " '(Single byte)
Punctuation mark 。 、 (Double byte)
Middle dot ・ (Double byte)
Comma , (Double byte) , (Single byte)
Dot . (Double byte). (Single byte)
Wave dash 〜(Wave dash, Double byte)*Unicode: U+301C
~(Tilde, Double byte)*Unicode: U+FF5E
Percent % (Double byte) %(Single byte)
Ampersand & (Double byte) &(Single byte)
Colon/semicolon : ; (Double byte)
: ; (Single byte)
Three dot leader … (Double byte)
Hyphen ‐ (Double byte)  - (Single byte)
Operator + - ± × ÷ = ≠ ∞ (Double byte)
- +(Single byte)
Slash / (Double byte)
/(Single byte)
Question/exclamation mark ? ! (Double byte)
? ! (Single byte)
Other ¥ @ # ♯ (Double byte)
@ # $(Single byte)
Greek /Cyrillic characters ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ (Double byte)
αβγδεζηθικλμνξοπρστυφχψω (Double byte)
АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ (Double byte)
абвгдеёжзийклмнопрстуфхцчшщъыьэюя (Double byte)

*No limit in number of punctuation marks, middle dots, commas, and periods.