Yahoo! JAPAN Ads

Yahoo! JAPAN Ads Help

Extended Text Ads 

1. Ad Insertion Rules
2. Supported character types, space type and Symbol types (for Titles, Descriptions)

Precautions

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

1. Ad Insertion Rules

ItemDescription
KeywordsNumber of charactersUp to 80 characters
Titles, DescriptionsNumber of charactersTitle 1Up to 30 characters
Title 2Up to 30 characters
Title 3 (Optional)Up to 30 characters
Description 1Up to 90 characters
Description 2
(Optional)
Up to 90 characters
How to CountCount 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 typesSee 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,
COUNTDOWN function,
IF function
The same restrictions on the number of characters for titles/descriptions must be followed, even when the listed functions is used.
If the number of characters exceeds the limit due to system specifications of Yahoo! Ads, it is judged that the guideline is not violated.
Display URL
(Domain)
Automatically generatedNot required
*Display URL (Domain) is automatically generated based on Landing Page URL.
Display URL (Directory)Number of charactersDirectory 1Up to 15 characters
Directory 2Up to 15 characters
How to CountCount as 2 both for full-width char and half-width Katakana char, count as 1 for half-width alphanumeric
Supported charactersSingle byte alphanumeric characters, Japanese characters
Keyword Insertion,
Ad Customizer,
COUNTDOWN function,
IF function
The same restrictions on the number of characters for titles/descriptions must be followed, even when the listed functions is used.
If the number of characters exceeds the limit due to system specifications of Yahoo! Ads, it is judged that the guideline is not violated.
Landing Page URLNumber of
characters
1,024 byte
*Required
Domain must match with the “Display URL”.
How to CountCount as 1 byte for half-width character, and as 3 byte for full-width character
Supported charactersSingle byte alphanumeric characters, Japanese characters(RFC3986, RFC3987)
Smartphone Landing Page URLNumber of
characters
1,024 byte
Domain must match with the “Display URL”.
How to CountCount as 1 byte for half-width character, and as 3 byte for full-width character
Supported charactersSingle byte alphanumeric characters, Japanese characters(RFC3986, RFC3987)
Tracking URLNumber of
characters
1,024byte
How to CountCount as 1 byte for half-width character, and as 3 byte for full-width character
Supported charactersSingle byte alphanumeric characters, Japanese characters(RFC3986, RFC3987)
Custom ParametersNameNumber of
characters
16byte
How to Count1 byte *Full-width is not supported.
Supported charactershalf-width alphanumeric characters
ValueNumber of
characters
200byte
How to CountCount as 1 byte for half-width character, and as 3 byte for full-width character
Supported charactersSingle byte alphanumeric characters, Japanese characters(RFC3986, RFC3987)

 

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

Supported Character Types

HiraganaDouble byte
KatakanaDouble byte
AlphanumericDouble byte/Single byte

Supported Space Type

SpaceSingle byte

Supported Symbol Types

TypesSymbols
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 charactersΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ (Double byte)
αβγδεζηθικλμνξοπρστυφχψω (Double byte)
АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ (Double byte)
абвгдеёжзийклмнопрстуфхцчшщъыьэюя (Double byte)

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