What Is Display Advertising?
Display advertising refers to visual ads — banners, images, video, and rich media — served across websites, apps, and digital platforms. Unlike search ads that appear when users actively query, display ads are shown to users based on demographics, interests, browsing behavior, or contextual page content.
Display Ad Formats in 2026
| Format | Common Sizes | Strength |
|---|---|---|
| Banner | 728×90, 300×250, 160×600 | Wide availability, low CPM |
| Interstitial | Full-screen | High visibility, strong CTR |
| Popunder | Full window | High engagement post-session |
| Native | Varies | Content-blended, less intrusive |
| Video (pre-roll) | 16:9 | Brand impact, high CPMs |
| Push notification | Icon + text | Direct delivery, high CTR |
Display Advertising Targeting Options
- Contextual — ads matched to page content (no user data required)
- Behavioral — based on browsing history and interests
- Geographic — country, region, city-level targeting
- Device/OS — mobile vs desktop, iOS vs Android
- Retargeting — previous visitors to your site or app
- Lookalike — users similar to your existing customers
Display vs Search vs Social Advertising
| Channel | Intent Level | CPM | Best For |
|---|---|---|---|
| Search (Google) | High | High | Purchase intent |
| Social (Meta) | Medium | Medium-High | Audience targeting |
| Display (Programmatic) | Low-Medium | Low-Medium | Reach, awareness |
| Popunder (Adsailor) | Low-Medium | Low | Mass reach, affiliate |
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Display Advertising Best Practices
- Keep creative simple — clear message, strong CTA, readable in 1–2 seconds
- Match landing page to creative — visual and message continuity
- Use frequency capping — 3–5 impressions per user per day max
- Test multiple creative variants — rotate at least 3 versions
- Segment campaigns by device — mobile and desktop behave differently
- Monitor viewability — ensure ads are actually being seen
Frequently Asked Questions
What’s the difference between display and programmatic advertising?
Programmatic is the technology used to buy display ads automatically. All programmatic ads are display, but not all display ads are programmatic (some are bought directly).
Are display ads still effective?
Yes — particularly popunder and native formats that achieve higher engagement. Standard banner ads have low CTRs but remain valuable for brand awareness at scale.
What are the best display ad sizes?
300×250 (medium rectangle), 728×90 (leaderboard), and 160×600 (wide skyscraper) consistently deliver the most inventory and impressions across publisher networks.