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mkt-ad-optimization

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Chinese

Digital Ad Optimization

数字广告优化

Framework

框架

IRON LAW: Optimize for the Business Metric, Not the Ad Metric

High CTR with low conversion = wasted clicks (attracting curiosity, not buyers).
Low CPC with no sales = cheap traffic that doesn't convert.

The only metrics that matter: CPA (Cost Per Acquisition), ROAS (Return On Ad Spend),
and ultimately: profit per ad dollar. Optimize the funnel, not the ad.
IRON LAW: Optimize for the Business Metric, Not the Ad Metric

High CTR with low conversion = wasted clicks (attracting curiosity, not buyers).
Low CPC with no sales = cheap traffic that doesn't convert.

The only metrics that matter: CPA (Cost Per Acquisition), ROAS (Return On Ad Spend),
and ultimately: profit per ad dollar. Optimize the funnel, not the ad.

Platform Comparison

平台对比

PlatformBest ForAudienceAvg CPC (Taiwan)Targeting Strength
Google SearchHigh-intent queries, direct responseActive searchersNT$5-30Keyword intent (strongest)
Google DisplayAwareness, retargeting, broad reachPassive browsingNT$1-5Contextual, audience
Meta (FB/IG)Social discovery, visual products, lookalikeSocial usersNT$3-15Interest, behavior, lookalike
LINE LAPTaiwan-specific, broad reachLINE users (95% Taiwan)NT$3-20Demographics, interests
YouTubeVideo branding, considerationVideo viewersNT$1-5 (CPV)Intent, affinity, in-market
TikTokGen Z, viral products, short-form videoYoung demographicNT$2-10Interest, behavior
平台最佳适用场景受众台湾地区平均CPC定位能力
Google Search高意向查询、直接响应主动搜索用户NT$5-30关键词意向（最强）
Google Display品牌认知、重定向、广泛触达被动浏览用户NT$1-5上下文、受众
Meta (FB/IG)社交发现、视觉产品、相似受众社交平台用户NT$3-15兴趣、行为、相似受众
LINE LAP台湾专属、广泛触达LINE用户（覆盖台湾95%人群）NT$3-20人口统计、兴趣
YouTube视频品牌推广、考虑阶段视频观看用户NT$1-5（CPV）意向、偏好、目标市场
TikTokZ世代、爆款产品、短视频年轻群体NT$2-10兴趣、行为

Bidding Strategies

出价策略

StrategyHow It WorksWhen to Use
Manual CPCYou set max CPCLearning phase, small budgets, full control
Target CPAAlgorithm optimizes for target cost per acquisition30+ conversions/month, known CPA target
Target ROASAlgorithm optimizes for target return on ad spendE-commerce, known revenue per conversion
Maximize ConversionsSpend full budget to get max conversionsGrowth phase, less concerned about CPA
Maximize ClicksMost clicks for budgetTraffic campaigns, awareness
策略运作方式使用场景
Manual CPC手动设置最高单次点击成本学习阶段、小预算、需要完全控制
Target CPA算法优化以达成目标客户获取成本每月30+转化量、已知目标CPA
Target ROAS算法优化以达成目标广告支出回报率电商行业、已知每转化收益
Maximize Conversions用尽预算以获取最多转化量增长阶段、对CPA关注度较低
Maximize Clicks用预算获取最多点击量流量活动、品牌认知

Optimization Workflow

优化工作流

Phase 1: Audit Current Performance
  • CPA by campaign, ad group, keyword/audience
  • Quality Score (Google) or Relevance Score (Meta)
  • Conversion rate by landing page
  • Wasted spend: search terms with clicks but no conversions
Phase 2: Quick Wins (Week 1-2)
  • Add negative keywords (Google Search)
  • Pause underperforming ad groups/audiences
  • Reduce bids on high-CPA keywords
  • Fix landing page mismatches (ad promise ≠ landing page content)
Phase 3: Structural Improvements (Week 3-4)
  • Audience segmentation: separate cold, warm, hot audiences
  • Creative refresh: new ad copy/images (fatigue sets in after 2-4 weeks)
  • Landing page optimization: speed, mobile, clear CTA
Phase 4: Scaling (Month 2+)
  • Increase budget on winning campaigns (incrementally, +20%/week)
  • Expand to new audiences (lookalikes, new interests)
  • Test new platforms
  • Build retargeting funnel: awareness → consideration → conversion
阶段1：审计当前表现
  • 按活动、广告组、关键词/受众划分的CPA
  • Google的质量得分或Meta的相关性得分
  • 着陆页转化率
  • 无效支出：有点击但无转化的搜索词
阶段2：快速见效（第1-2周）
  • 添加否定关键词（Google Search）
  • 暂停表现不佳的广告组/受众
  • 降低高CPA关键词的出价
  • 修复着陆页不匹配问题（广告承诺≠着陆页内容）
阶段3：结构性改进（第3-4周）
  • 受众细分：区分冷受众、温受众、热受众
  • 创意更新：新的广告文案/图片（广告疲劳会在2-4周后出现）
  • 着陆页优化：速度、移动端适配、清晰的CTA
阶段4：规模化（第2个月及以后）
  • 增加表现优异的活动预算（逐步增加，每周+20%）
  • 拓展新受众（相似受众、新兴趣群体）
  • 测试新平台
  • 构建重定向漏斗：认知→考虑→转化

Creative Testing (A/B)

创意测试（A/B）

ElementWhat to TestMinimum Sample
HeadlineBenefit vs feature, question vs statement1,000 impressions each
Image/VideoProduct shot vs lifestyle, static vs video1,000 impressions each
CTA"Shop Now" vs "Learn More" vs "Get Offer"500 clicks each
OfferFree shipping vs % discount vs gift100 conversions each
元素测试内容最小样本量
标题利益点vs功能点、问句vs陈述句每个版本1000次曝光
图片/视频产品实拍vs生活场景图、静态图vs视频每个版本1000次曝光
CTA“立即购买”vs“了解更多”vs“获取优惠”每个版本500次点击
优惠免运费vs百分比折扣vs赠品每个版本100次转化

Output Format

输出格式

markdown
undefined
markdown
undefined

Ad Optimization Report: {Campaign/Account}

Ad Optimization Report: {Campaign/Account}

Performance Summary

Performance Summary

MetricCurrentTargetStatus
SpendNT${X}/month——
CPANT${X}NT${X}🟢/🟡/🔴
ROAS{X}x{X}x🟢/🟡/🔴
CVR{%}{%}🟢/🟡/🔴
MetricCurrentTargetStatus
SpendNT${X}/month——
CPANT${X}NT${X}🟢/🟡/🔴
ROAS{X}x{X}x🟢/🟡/🔴
CVR{%}{%}🟢/🟡/🔴

Top Performing

Top Performing

Campaign/AdCPAROASAction
{name}NT${X}{X}xScale +20%
Campaign/AdCPAROASAction
{name}NT${X}{X}xScale +20%

Underperforming

Underperforming

Campaign/AdCPAIssueAction
{name}NT${X}{diagnosis}Pause/Optimize/Restructure
Campaign/AdCPAIssueAction
{name}NT${X}{diagnosis}Pause/Optimize/Restructure

Optimization Plan

Optimization Plan

PriorityActionExpected ImpactTimeline
1{action}CPA -{X%}{weeks}
undefined
PriorityActionExpected ImpactTimeline
1{action}CPA -{X%}{weeks}
undefined

Gotchas

注意事项

  • Learning phase needs patience: Google/Meta algorithms need 50+ conversions per week per ad group to optimize. Restructuring too frequently resets learning.
  • Attribution isn't perfect: Google takes credit for Google, Meta takes credit for Meta. Use UTM parameters and a neutral analytics tool (GA4) for cross-platform attribution.
  • Creative fatigue is real: Even winning ads degrade over 2-4 weeks as the same audience sees them repeatedly. Refresh creatives regularly.
  • Taiwan ad market specifics: LINE LAP reaches demographics that Facebook is losing (older users). Google is dominant for search intent. Mix platforms based on your audience.
  • iOS privacy (ATT): Since iOS 14.5, Meta tracking is limited. Expect less accurate reporting for iOS users. Use conversion API and model-based attribution.
  • 学习阶段需要耐心：Google/Meta算法每个广告组每周需要50+转化量才能优化。过于频繁调整结构会重置学习进程。
  • 归因并非完美：Google将转化归功于Google，Meta归功于Meta。使用UTM参数和中立分析工具（GA4）进行跨平台归因。
  • 广告疲劳真实存在：即使是表现优异的广告，在同一受众反复观看2-4周后效果也会下降。定期更新创意。
  • 台湾广告市场特性：LINE LAP触达的人群是Facebook正在流失的（年长用户）。Google在搜索意向领域占主导。根据受众混合使用平台。
  • iOS隐私政策（ATT）：自iOS 14.5起，Meta的追踪受限。iOS用户的报告准确性会降低。使用转化API和基于模型的归因。

References

参考资料

  • For Google Ads account structure best practices, see 
    references/google-ads-structure.md
  • For Meta Ads creative guidelines, see 
    references/meta-creative.md
  • 关于Google Ads账户结构最佳实践，请查看
    references/google-ads-structure.md
  • 关于Meta Ads创意指南，请查看
    references/meta-creative.md