Rules for Using Characters and Symbols

*Display Ads (Auction and Guaranteed) is available for specific advertisers.

Rules for symbols

Rules

Notes

*Up to a total of two of the same type of symbols can be used (no limits on the use of punctuation, midpoints, commas and periods).

■Example of bad use

・When the same type of symbol is used more than three times in one ad creative

快適！便利！安心！しかも低コスト？資料請求はこちらから

*”！” and “？” are the same type of symbol.

Using the same type of symbol in succession is not allowed.

■Example of bad use

・ The same type of symbol is used in succession

新曲続々！！視聴無料

人気ブランドアイテムが50％オフ！？

人気ホテル予約サイト矢風＠　￥5000から

*”！” and “？” are the same type of symbol.

*Spaces placed between the symbols are recognized as use in succession

Rules for using parentheses

For symbols, the number of times it can be used and its successive use is limited, but a pair is counted as one.

Rules	Notes
The same kind of parentheses in pairs must be used.	■Example of allowed use ・A pair of the same type of opening and closing parentheses （公式）Yahoo!広告 ■Example of bad use ・When a combination of full-width and half-width characters are used （公式)Yahoo!広告・When different types of parentheses are used in combination （公式＞Yahoo!広告・When only one of the parentheses is used 公式＞Yahoo!広告・When parentheses are used in reverse order 】公式【Yahoo!広告
Up to two pairs in one ad creative (*1)	■Example of bad use ・When more than three sets of parentheses are used in an ad creative 「Yahoo!」、「括弧2つめ」、「括弧3つめ」
Successive use of the same type of parenthesis symbol is not allowed	■Example of bad use ・When the same kind of parenthesis symbol is used successively 「Yahoo!」「広告」

*1 Note: The counting method differs between Yahoo! JAPAN Search Ads (YSA) and Yahoo! JAPAN Display Ads (YDA) (see next section).

The counting method differs as follows between Yahoo! JAPAN Search Ads (YSA) and Yahoo! JAPAN Display Ads (YDA).

Products	How to count	Sample image
Yahoo! JAPAN Ads Search Ads	One pair for each description and title
Yahoo! JAPAN Ads Display Ads	Up to two sets for title and description

Rules for using round brackets

The following rules apply to the following brackets.

（） (full-width)

( ) (half-width)

Rules	Notes
Can be used with only some bracket symbols	Allowed use are as follows. The brackets can be used without a pair. Yahoo!広告) Yahoo!広告）
Successive use of different left and right bracket symbol is permitted.	■Example of allowed use ・When different left and right bracket symbols are used in succession (Yahoo!広告)(検索広告) ■Example of bad use ・When the same left and right bracket symbols are used in succession （（　Yahoo!広告
In Search Ads, only round brackets can be used with other bracket symbols.	■Example of allowed use 【ヤフー】検索広告（開始） ■Example of bad use 【ヤフー】検索広告『開始』

Examples : using characters and symbols

Good – enable to be displayed

Included in Company name, Service name, Brand, Personal name	@xxxx Anniversary Sale * “＠xxxx” is brand name in this example
Currency	￥100 Shop
Alternative explanation of “at”, meaning location	Beauty Salon @Yokohama

Not Good – disabled to be displayed

Phrase which makes users uncomfortable	orz, DQN
Nonsensical row of characters	AAAAAAA, ああああ, キキキ, 111111,
Nonsensical phrase	Title	Test
	Description	Test
Phrase using characters and symbols ornamentally * Note if the phrase makes sense without the character or the symbol, it is considered as ornamental use.	＞Yahoo! JAPAN＜ ΣGood Treat with this Pillow？ @Luxury Dinner for Dating Go now to buy cool glasses@ Yummy Crab￥ So Funny Jokesｗ
Smiley	:), ;), (・∀・), (^_^),
Platform-specific characters	㈱, ℡, ㎡, ①, ②, ③
Repeat 3 or more times, or back-to-back use of same sort of symbols in an ad * Note that the “!” and “?” are considered as same sort of symbol.	Cozy！Handy！Safe！ with Less Cost！？ Click here！

Examples : spaces

Good – enable to be displayed

Spacing properly on English sentence (interword space)

GO TO THE YAHOO TOWER

Not Good – disabled to be displayed

Spacing ornamentally

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