Bottom of funnel (BoFu) is where the money is in affiliate marketing. At this stage, the visitor already knows they want to buy — they're just deciding where and from whom. In Google Ads, BoFu means bidding on high-intent keywords: terms that include 'buy', 'best', 'review', 'discount', or the exact product name. CPC is higher here, but so is conversion rate — and it's where experienced affiliates put most of their budget.
Bottom of funnel (BoFu): the final stage of the customer journey. The visitor has already identified their problem, researched solutions, and is now deciding which product to buy. Typical BoFu terms: 'buy [product]', '[product] review', '[product] does it work?', '[product] price', '[product] discount'.
Why bottom of funnel converts better than top of funnel
A marketing funnel has three stages: top (the visitor discovers a problem), middle (they research solutions), and bottom (they decide which product to buy). Each stage requires a different Google Ads approach.
- Top of funnel (ToFu): broad keywords like 'how to lose weight' or 'make money online' — high volume, low purchase intent, high cost per conversion
- Middle of funnel (MoFu): research keywords like 'best weight loss supplement 2024' — medium volume, growing intent, visitor comparing options
- Bottom of funnel (BoFu): action keywords like 'buy [product]' or '[product] review does it work' — lower volume, maximum intent, highest conversion rate
For affiliates with a limited budget, BoFu is the most efficient strategy: fewer wasted clicks, more sales per dollar spent. The visitor who arrives from a BoFu keyword has already done their research — your landing page just needs to confirm their decision.
How to find bottom-of-funnel keywords for Google Ads
BoFu keywords follow recognizable patterns. Learning to identify them before building your campaign saves budget and speeds up results.
Purchase-intent modifiers
Add these terms to a product name or niche to surface BoFu keywords: 'buy', 'price', 'discount', 'coupon', 'does it work', 'review', 'testimonials', 'ingredients', 'official site', 'where to buy', 'worth it'. Each one signals a visitor close to making a decision.
Exact product name + qualifier
If you promote a specific product, keywords with its exact name are the most valuable. Examples: '[Product Name] review', '[Product Name] scam or legit', '[Product Name] buy'. Lower volume — but conversion rates are several times higher than generic terms.
Comparisons and alternatives
Keywords like '[product A] vs [product B]' or 'best [category] supplement' are also BoFu — the visitor is in the final comparison phase before deciding. These work especially well for ClickBank and Digistore24 products in the health and finance niches.
Common mistake: beginner affiliates spend their entire budget on broad ToFu keywords (high volume, low conversion) and blame the product when it doesn't sell. Google Ads charges per click — if the visitor isn't ready to buy, you pay and don't earn. Reserve at least 60% of your budget for BoFu keywords.
What landing page works best for bottom-of-funnel traffic?
A BoFu landing page is different from a ToFu page. Your visitor doesn't need to be convinced a problem exists — they need to be convinced your product is the right solution.
Review page
The most effective model for BoFu traffic. It presents the product in depth: ingredients, benefits, how it works, testimonials, competitor comparison, and price. AdsPages generates AI-powered review pages in minutes — both for health products (Nutraceutical Review) and any other niche (Generic Review).
Cookie consent page
Widely used in more restrictive niches like nutra and adult products. The cookie consent page acts as an intermediate layer between the ad and the offer, making it easier to get Google Ads approval in categories that frequently see disapprovals. AdsPages includes a ready-to-use Cookie template you can publish in minutes.
Ghost blog page
An editorial-style article that reads like organic content but is a presell page. Works well for products in more restricted niches on Google Ads, since it passes ad policy review more easily. Available in AdsPages as the 'Ghost' template.
How AdsX covers every layer of the BoFu operation
AdsX was built specifically for affiliates running Google Ads — each product covers a critical part of the BoFu workflow.
Build the right landing page: AdsPages
AdsPages generates BoFu-optimized landing pages with AI: review, quiz, ghost blog, cookie consent and more. No WordPress, no code — the page is created and hosted in minutes, with speed tuned for a high Google Ads Quality Score.
Write ads that convert: AdsCreator
AdsCreator uses AI to generate ad copy — headlines and descriptions optimized for BoFu keywords. Supports 50+ languages, making it essential for affiliates promoting ClickBank or Digistore24 offers in international markets.
Track every sale: AdsTracking
Without conversion tracking, you don't know which BoFu keywords are generating sales — and you keep paying for clicks that don't convert. AdsTracking integrates with 20+ platforms (ClickBank, Digistore24, MaxWeb, AdCombo, Hotmart and others) and sends real-time conversion data to Google Ads, letting the algorithm automatically optimize toward the most profitable keywords.
Domain and hosting: AdsDomains and AdsHosting
BoFu ads with a custom domain score higher on Quality Score than generic URLs — Google rewards consistency between the ad domain and the landing page domain. AdsDomains registers a domain in one click; AdsHosting deploys your landing page with automatic SSL, DNS, and antibot protection.
Affiliates who combine a review landing page (AdsPages) with keyword-level conversion tracking (AdsTracking) can identify and pause non-converting keywords within 7 days, reducing average CPA by 35–50% in the first month of optimization.
Frequently asked questions about bottom of funnel Google Ads
What is the difference between top, middle, and bottom of funnel in Google Ads?
Top of funnel targets people discovering a problem ('how to lose weight'). Middle of funnel targets people researching solutions ('best weight loss supplement'). Bottom of funnel targets people ready to buy ('[product] buy', '[product] review does it work'). In Google Ads Search, you control which funnel stage you're targeting by choosing the right keywords.
Can I run Google Ads using only bottom-of-funnel keywords?
Yes — and for most beginner affiliates, this is the recommended starting point. You get less traffic volume but a much higher proportion of visitors with purchase intent. When budget is limited, concentrating on BoFu delivers faster results than trying to cover the entire funnel.
How do I know if a keyword is truly bottom of funnel?
Ask yourself: is the person who types this keyword researching (top/middle) or ready to act (bottom)? Terms with 'buy', 'price', 'review', 'does it work', 'discount', exact product name, or direct comparisons are clear BoFu signals.
Are bottom-of-funnel keywords more expensive on Google Ads?
Yes — BoFu keywords typically have 2x to 5x higher CPC than generic ToFu keywords. But conversion rates are proportionally higher too. The metric to watch is CPA (cost per acquisition), not just CPC. A keyword with a $2 CPC that converts at 0.3% costs more per sale than one at $8 CPC that converts at 5%.
Conclusion
Bottom of funnel is where affiliate marketing on Google Ads becomes profitable. Find the right high-intent keywords, send them to a landing page that matches where the visitor is in their decision process, and track every conversion back to the keyword that generated it. AdsX covers the entire stack: AdsPages for landing pages, AdsCreator for ad copy, AdsTracking for conversion data, and AdsDomains + AdsHosting for infrastructure. If you're still spending most of your budget on generic traffic, start with BoFu — it's the fastest path to a positive ROAS.
Build your bottom-of-funnel operation with AdsX
AI-powered review and quiz landing pages, conversion tracking across 20+ platforms, and custom domain — everything you need to convert high-intent traffic. Essential and Scale Max plans available.