TOFU, MOFU and BOFU are the three stages of the buyer journey: top of funnel is someone who doesn't yet know they have the problem, middle of funnel is someone researching and comparing solutions, and bottom of funnel is someone who already decided to buy and is just picking where. For affiliates running Google Ads, mixing up these stages is the most expensive mistake there is — each one needs its own keyword, ad and landing page. This guide shows how to spot each stage and what to do at each one.
Sales funnel (TOFU, MOFU, BOFU): the model that splits the buyer journey into three stages — Top of Funnel (awareness), Middle of Funnel (consideration) and Bottom of Funnel (decision). In Google Ads, each stage maps to a different search type: informational, comparative or transactional.
Why mixing funnel stages costs affiliates money on Google Ads
The most common mistake beginner affiliates make is running the same ad and the same landing page for every keyword, from 'what is' searches to 'buy now' searches. That breaks the promise of the search: someone who typed a question gets a hard-sell ad and bounces; someone ready to buy gets an educational article and wastes time before converting elsewhere. The result is low CTR, poor Quality Score and high CPC — Google penalizes ads that don't match real search intent.
Splitting campaigns by stage also makes budgeting easier: top of funnel builds audience and feeds remarketing, while bottom of funnel gets the bulk of spend because it converts at a more predictable CPA.
How do you identify which funnel stage a user is in?
The keyword someone types already reveals the stage. Here's the pattern:
- Top of funnel (TOFU) — informational searches: 'how to lose weight without dieting', 'why am I tired all the time'. The user is describing a symptom or desire, not a solution.
- Middle of funnel (MOFU) — comparative searches: 'best [category]', '[product A] vs [product B]', 'does [product] actually work'. The user knows a solution exists and is evaluating which one to pick.
- Bottom of funnel (BOFU) — transactional searches: 'buy [product]', '[product] price', '[product] discount', '[product] free shipping'. The user already decided and just needs the final click.
What kind of ad and content should you use at each stage?
Each stage requires a different job from the ad and the landing page. Mixing these jobs is what kills conversion rate the most.
Top of funnel — spark curiosity
The ad should create recognition, not sell. Speak to the problem, use a relatable pain point, and send traffic to a content or ghost-blog presell — never straight to checkout. The goal is to open the conversation, not close the sale.
Middle of funnel — compare and prove
Here the ad needs to show differentiation and social proof — reviews, comparisons, numbers. The ideal landing page is a review or comparison page that helps the visitor decide. This is the stage where the most objections show up, so address the main ones upfront.
Bottom of funnel — confirm and close
The ad confirms the promise, breaks the last objection (price, guarantee, shipping) and calls for direct action. The landing page must reinforce exactly what the ad promised, without distracting the visitor with new information.
Common trap: one single campaign with every keyword crammed into the same ad group. That forces Google to show the same ad copy to completely different intents, tanks Quality Score, and mixes metrics together — making it impossible to tell whether the problem is at the top or the bottom of the funnel.
How AdsCreator builds ads for each funnel stage
AdsCreator is AdsX's campaign generator that builds Search Network ads with AI in more than 50 languages. It has dedicated strategies for Top, Middle and Bottom of Funnel — the affiliate picks the stage, and AdsCreator organizes the headlines with the right job: curiosity at the top, comparison and proof in the middle, promise and direct call-to-action at the bottom.
Because AdsCreator works alongside AdsPages, the generated presell follows the same stage logic: content page for top of funnel, review for middle of funnel, and direct presell for bottom of funnel — keeping the congruence that Google rewards with a higher Quality Score.
Campaigns split by funnel stage, with congruent ad copy and landing pages, typically cut CPA by up to 30% compared to a single campaign that mixes every search intent together.
Frequently asked questions about TOFU, MOFU and BOFU on Google Ads
Do I need separate campaigns for each funnel stage?
Ideally yes. Separate campaigns, or at least separate ad groups, per stage let you set budget, bids and ad copy specific to each search intent, which improves Quality Score and makes optimization far easier.
Which funnel stage converts fastest?
Bottom of funnel, because the intent is already to buy. But search volume is usually lower there. Top and middle of funnel have more volume and feed remarketing, which later converts at the bottom for a lower cost.
Where should I put my budget if I'm just starting out?
Start at the bottom of the funnel — more predictable CPA and faster return to validate the offer. Once it's validated, expand into middle and top of funnel to build audience and scale.
Does the landing page need to change based on the funnel stage?
Yes. Top of funnel presells educate, middle of funnel compares and proves, bottom of funnel confirms and sells. Using the same page for all three stages is one of the most common reasons for a high CPA.
Conclusion
TOFU, MOFU and BOFU aren't just marketing theory — on Google Ads, each stage demands its own keyword, ad and landing page. Identify intent from the search term, split your campaigns, and write each ad with the right job: spark interest at the top, compare and prove in the middle, confirm at the bottom. AdsCreator already builds this structure automatically for each stage, in any language.
Build the right ad for every funnel stage
AdsCreator generates headlines and descriptions specific to top, middle and bottom of funnel, in 50+ languages. Essencial and Escala Max plans.