Google Display Network averages $1.01 CPC and $4.73 CPM. Meta Ads averages $1.49 CPC and $10.53 CPM. Analysis for Japan in 2026.
Japan is Asia's largest mature digital ad market and one of the most expensive globally — CPMs run roughly 35% above US baselines. It is also structurally different from Western markets in ways that catch newcomers out repeatedly. Yahoo! Japan retains meaningful search share alongside Google. LINE is the dominant messaging platform and a serious ad channel, not a niche play. Display ad creative norms favor higher information density and louder visual treatments than Western markets. Japanese-language creative is non-negotiable — direct English translations consistently fail. Mobile-first behavior is universal, and the Japanese commerce funnel typically involves longer consideration phases and more comparison-shopping touchpoints than US equivalents. APPI (Act on Protection of Personal Information) governs privacy and was amended significantly in 2022.
Display advertising across Google's network of partner sites
Facebook and Instagram advertising - highly targetable social ads
The auction, the creative, the budget floor — the three things you actually need to know before picking a platform.
GDN buys impressions across 2M+ publisher sites via a real-time auction. You can bid CPC or CPM depending on the campaign goal. CPCs are 4–7x lower than search, but conversion rates are also lower — it's a top-of-funnel channel, not a decision-point channel.
Responsive Display Ads: 15 images (1200×628 landscape, 1200×1200 square, 1200×1500 portrait), 5 logos, 5 short headlines (30ch), 5 long headlines (90ch), 5 descriptions (90ch). Google auto-assembles.
$30–75/day gets a display campaign to statistical signal, though retargeting audiences reach signal faster and are the recommended entry point for smaller budgets.
Meta (Facebook + Instagram) runs an auction across Feed, Stories, Reels, Marketplace, and Audience Network. You optimize for a conversion event; Meta's algorithm decides bid and placement. Effective CPM is $6–12, effective CPC $0.80–1.50 depending on optimization goal and vertical.
Feed: 1:1 (1080×1080), 4:5 portrait (1080×1350). Reels/Stories: 9:16 (1080×1920). Video 15–60s. Carousel supports 10 cards. Copy ~125 chars before the truncate. Creative fatigue is the #1 cost driver — refresh every 2–3 weeks.
The algorithm needs ~50 conversion events per week per ad set to exit learning phase. For a $30 CPA that's ~$1,500/week or $6K/month per campaign. Below that, performance is a lottery.