Platform Specifications
Character limits and format requirements for advertising platforms.
Google Ads
Responsive Search Ads (RSA)
| Element |
Limit |
Notes |
| Headlines |
30 chars × 15 max |
Min 3, recommended 10+ |
| Descriptions |
90 chars × 4 max |
Min 2, recommended 4 |
| Display URL paths |
15 chars × 2 |
Optional |
| Final URL |
2048 chars |
Required |
Display Ads
| Format |
Dimensions |
File Size |
| Leaderboard |
728×90 |
150KB |
| Medium Rectangle |
300×250 |
150KB |
| Wide Skyscraper |
160×600 |
150KB |
| Large Rectangle |
336×280 |
150KB |
| Responsive |
Various |
150KB |
Performance Max
| Asset Type |
Specs |
| Short headline |
30 chars |
| Long headline |
90 chars |
| Description |
90 chars |
| Business name |
25 chars |
| Images |
1200×628, 1200×1200, 628×628 |
| Videos |
10 sec+ recommended |
Naver Search Ads
파워링크
| Element |
Limit |
| 제목 |
25자 (한글 기준) |
| 설명 |
45자 |
| 표시 URL |
도메인만 |
브랜드검색광고
| Element |
Limit |
| 메인 제목 |
15자 |
| 서브 제목 |
30자 |
| 설명문 |
100자 |
| 이미지 |
200×200 이상 |
확장소재
| Type |
Limit |
| 확장 제목 |
25자 |
| 추가 설명 |
20자 × 2개 |
| 서브링크 |
제목 15자, URL |
| 가격정보 |
15자 + 금액 |
Meta (Facebook/Instagram)
Feed Ads
| Element |
Limit |
Recommended |
| Primary text |
125 chars visible |
40-50 chars |
| Headline |
40 chars |
25-30 chars |
| Description |
30 chars |
Optional |
| Link description |
30 chars |
|
Stories Ads
| Element |
Specs |
| Aspect ratio |
9:16 |
| Image |
1080×1920 |
| Video |
15 sec max |
| Text overlay |
Minimal (20% rule relaxed) |
Reels Ads
| Element |
Specs |
| Aspect ratio |
9:16 |
| Duration |
15-60 sec |
| Caption |
72 chars visible |
LinkedIn Ads
| Element |
Limit |
| Introductory text |
600 chars (150 visible) |
| Headline |
200 chars |
| Description |
300 chars |
| Image |
1200×627 |
Message Ads
| Element |
Limit |
| Subject line |
60 chars |
| Message body |
1500 chars |
| CTA |
20 chars |
Text Ads
| Element |
Limit |
| Headline |
25 chars |
| Description |
75 chars |
| Image |
100×100 |
| Element |
Limit |
| Tweet text |
280 chars |
| Card headline |
70 chars |
| Card description |
200 chars |
| Website URL |
Included |
Image Specs
| Format |
Specs |
| Single image |
1200×675 (1.91:1) |
| Multi-image |
600×335 each |
| Carousel |
800×800 (1:1) |
Kakao Ads
비즈보드
| Element |
Limit |
| 제목 |
21자 |
| 설명 |
45자 |
| 이미지 |
640×480 |
카카오모먼트
| Type |
Specs |
| 네이티브 이미지 |
1200×628 |
| 네이티브 동영상 |
1920×1080 |
| 텍스트 |
45자 |
YouTube Ads
In-Stream Ads
| Type |
Duration |
Skip |
| Skippable |
Any length |
After 5 sec |
| Non-skippable |
15-20 sec |
No |
| Bumper |
6 sec max |
No |
Discovery Ads
| Element |
Limit |
| Headline |
25 chars × 2 |
| Description |
90 chars × 2 |
| Thumbnail |
1280×720 |
Best Practices Summary
Character Count Tips
- Stay under 80% of max for safety margin
- Front-load key message
- Test mobile truncation points
- Use abbreviations sparingly
Image Guidelines
- High resolution always
- Minimal text on images (especially Meta)
- Brand colors consistent
- CTA button placement matters
Video Guidelines
- Hook in 3 seconds
- Captions always (85% watch muted)
- Logo early for brand recall
- CTA at end or throughout
Andrew Yim
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