Audit websites and landing pages for conversion issues and design evidence-based A/B tests. Use when the user mentions "landing page isnt converting", "conversion rate", "A/B test", "why visitors leave", "objection handling", "bounce rate", "split testing", or "conversion funnel". Also trigger when diagnosing why signups are low, designing experiment hypotheses, or auditing checkout flows for friction points. Covers funnel mapping, persuasion assets, and objection/counter-objection frameworks. For overall marketing strategy, see one-page-marketing. For usability issues, see ux-heuristics.
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Audit websites and landing pages for conversion issues and design evidence-based A/B tests. Use when the user mentions "landing page isnt converting", "conversion rate", "A/B test", "why visitors leave", "objection handling", "bounce rate", "split testing", or "conversion funnel". Also trigger when diagnosing why signups are low, designing experiment hypotheses, or auditing checkout flows for friction points. Covers funnel mapping, persuasion assets, and objection/counter-objection frameworks. For overall marketing strategy, see one-page-marketing. For usability issues, see ux-heuristics.
license
MIT
metadata
{"author":"wondelai","version":"1.3.0"}
CRO Methodology
Scientific, customer-centric approach to conversion rate optimization based on the CRE Methodology(TM). Extraordinary improvements come from understanding WHY visitors don't convert, not from copying competitors or applying generic tips.
Core Principle
Don't guess -- discover. Every visitor who doesn't convert has a reason. Discover those reasons through research, then systematically eliminate them with evidence and proof. This evidence-based approach consistently outperforms "best practices", intuition, competitor copying, and expert opinion.
Scoring
Goal: 10/10. Rate any landing page, funnel, or conversion flow 0-10 against the principles below. Report the current score and the specific improvements needed to reach 10/10.
The CRO Frameworks
1. The CRO Process
Core concept: A systematic 9-step process moving from defining success metrics through research and experimentation to scaling wins across the business.
Why it works: Random optimization skips research. The process forces you to understand visitors before changing anything, so every change rests on evidence, not opinion.
Key insights:
Define success metrics aligned with business KPIs before touching any page
Map the entire funnel to find "blocked arteries" (high-traffic underperforming paths) and "missing links" (absent funnel stages)
Research visitors in three dimensions: who they are, what blocks them (UX problems), what stops them (objections)
Gather market intelligence from competitors, reviews, and other industries
Prioritize ideas with ICE scoring; design bold experiments, not "meek tweaks"
Run experiments with statistical rigor (95% confidence minimum, full business cycles), then scale wins across the business
Product applications:
Context
CRO Process Step
Example
Landing page audit
Define goals, map funnel, research visitors
70% bounce because value prop is unclear
Checkout optimization
Map funnel for blocked arteries
Shipping cost shock causes 40% cart abandonment
Email sequence
Scale wins
Winning objection-handling copy reused in drip emails
Copy patterns:
"What's preventing you from [action] today?" (exit survey to discover objections)
"Here's what [X] customers found..." (counter-objection with social proof)
Hypothesis template: "If we [change X], then [metric Y] will improve because [reason from research]"
Ethical boundary: Never manipulate test results or cherry-pick data; report all tests, including failures.
See: testing-methodology.md for ICE scoring, A/B vs. multivariate guidance, and statistical rigor.
2. Customer Research & Objections
Core concept: Visitors fail to convert for specific, discoverable reasons. Exit surveys, chat logs, support tickets, sales calls, and reviews reveal the "voice of the customer" and their real objections.
Why it works: Teams' guesses about why visitors leave are almost always wrong. Research uncovers objections no one anticipated, and the customer's own language out-persuades any copywriter's invention.
Key insights:
Primary sources (exit surveys, live chat, tickets, sales calls) give direct visitor language; secondary sources (reviews, social media, competitors) reveal industry-wide objections
The "Big 5" universal objections: Trust, Price, Fit, Timing, Effort
Quantitative research (analytics, heatmaps) shows WHERE problems are; qualitative (surveys, interviews) shows WHY
Non-converter surveys should ask ONE question for maximum response; post-purchase surveys ("What almost stopped you from buying?") reveal the objections that matter most
Use exact customer language in headlines and body copy -- it outperforms polished marketing copy
"What's the one thing we could change to make you [action]?"
"How would you describe [product] to a friend?" (reveals positioning in customer terms)
Ethical boundary: Anonymize data, get consent for recordings, and don't survey so aggressively that you degrade the experience.
See: RESEARCH.md for tools, survey questions, and data analysis methods.
3. Persuasion Assets
Core concept: Every company sits on overlooked proof -- undisplayed testimonials, unmentioned awards, hidden credentials, buried guarantees. Inventory these "persuasion assets", acquire missing ones, display them.
Why it works: Visitors decide on evidence, not claims. A modest claim with overwhelming proof beats a bold claim with none.
Key insights:
Audit five categories: Credentials & Authority, Social Proof, Risk Reversal, Data & Specificity, Process & Methodology
Create a wish list for missing assets and actively acquire them (request testimonials, apply for awards, compile statistics)
"Proof sandwich" structure: Claim (bold promise), then Proof (evidence), then Reinforcement (secondary proof)
Proof hierarchy, strongest first: specific results with context > named testimonials with photos > case studies > statistics > logos > generic testimonials
Place proof at points of friction, not in FAQs; specific numbers beat round ones ("47,832 customers" beats "About 50,000")
Product applications:
Context
Persuasion Asset
Example
Landing page header
Logo bar + rating
"Trusted by 10,000+ companies" with 5 recognizable logos
Pricing page
Risk reversal
"30-day money-back guarantee, no questions asked"
Checkout flow
Trust badges near forms
Security certification, payment logos, guarantee seal
Copy patterns:
"Here's how we did it for [Company X]..." (case study proof)
"[Specific number] businesses trust us" (not "thousands of customers")
Lead with benefits, not features: "Never delete another photo" beats "256GB storage"
Ethical boundary: Never fabricate testimonials, inflate statistics, or display fake trust badges -- all proof must be genuine and verifiable.
See: PERSUASION.md for the full persuasion assets checklist and psychological triggers.
4. The O/CO Framework
Core concept: The Objection/Counter-Objection table is the core CRE technique: map every visitor objection to a specific, evidence-backed counter-objection.
Why it works: Visitors arrive with objections; if the page doesn't address them, they leave. The O/CO table ensures no objection goes unanswered, each counter placed where the objection arises in the reading flow.
Key insights:
Research objections from surveys, chat logs, tickets, and sales calls -- don't guess
Implicit objections (ones visitors won't admit) require "CO Only": counter without stating the objection
Place counter-objections at the point of friction (credit-card objection near the payment form), not buried in FAQ
Address primary objections above the fold; repeat the same counter in multiple formats (text, video, testimonial, data)
Canned support responses are goldmines of tested counter-objections
Product applications:
Objection
Visitor Question
Counter-Objections
Trust
"Why should I believe you?"
Named testimonials, media logos, awards, guarantee
Price
"Is it worth the money?"
ROI calculator, cost comparison vs. alternatives, payment plans
Fit
"Will it work for MY situation?"
Similar-customer case studies, segmented pages, free trial
"Done for you" framing, "Set up in 5 minutes", step-by-step breakdown
Copy patterns:
Bad (states implicit objection): "Worried you're too lazy to learn a language?"
Good (CO Only): "Let the audio do the work for you."
"What almost stopped you from buying?" (post-purchase survey to validate the O/CO table)
Ethical boundary: Address real objections honestly -- never dismiss legitimate concerns or use deception to overcome valid hesitations.
See: OBJECTIONS.md for the full O/CO framework, research methods, and counter-objection techniques.
5. Hypothesis Design
Core concept: Every experiment needs a documented hypothesis linking a specific change to an expected outcome for a research-grounded reason, prioritized with ICE scoring (Impact, Confidence, Ease).
Why it works: A hypothesis forces you to articulate WHY a change should work, grounding it in customer research. ICE scoring stops teams wasting traffic on low-impact tweaks.
Key insights:
Format: "If we [change X], then [metric Y] will improve because [reason based on research]"
Define primary (decides winner), secondary (monitoring), and guardrail (must not decrease) metrics before testing
ICE, 1-10 each: Impact (could this double conversion?), Confidence (how strong is the research?), Ease (how easy to implement?)
Worth testing: complete redesign, new value proposition, fundamentally different offer. Not worth testing: button color, font size, image swap
Before testing, ask: "Could this 10x our results?" If not, reconsider priority
Product applications:
Context
Hypothesis Example
ICE Score
Headline rewrite
"Customer language from surveys will lift conversion because visitors see their own words"
I:8, C:9, E:10 = 9.0
Checkout redesign
"One-page checkout will lift completion because analytics show 40% drop at step 2"
I:9, C:6, E:3 = 6.0
Button color
"Green button will lift clicks because green means go"
I:2, C:2, E:10 = 4.7 (skip)
Copy patterns:
"Based on our research, visitors' #1 objection is [X]. This test addresses it by [Y]."
Document before: hypothesis, primary metric, sample size, duration. Document after: raw numbers, confidence interval, learnings, next steps
Ethical boundary: Report all results honestly -- never cherry-pick data or rerun tests until you get the answer you want.
6. A/B Testing Methodology
Core concept: Run controlled experiments comparing page versions with proper statistical rigor, so results reflect reality rather than random noise.
Why it works: Without rigor you can't distinguish real improvements from random variation -- peeking, undersized samples, and ignored practical significance all manufacture false winners.
Dr. Karl Blanks and Ben Jesson are cofounders of Conversion Rate Experts, the agency whose CRE Methodology has doubled the sales of many leading websites -- clients include Google, Apple, Amazon, Facebook, and Dropbox -- and earned a Queen's Award for Enterprise (Innovation). Blanks holds a PhD and led usability teams at Hewlett-Packard; Jesson's background is direct-response marketing. Their book Making Websites Win distills the methodology into a repeatable, evidence-based process.
