Key Takeaways
- CRO is the highest-ROI marketing activity, it increases leads and revenue without increasing ad spend.
- Apexure's 13-step CRO process and EPIC testing framework turn guesswork into a repeatable system.
- The three highest-impact CRO levers are headline clarity, CTA prominence, and form friction reduction.
- A/B testing is essential, but prioritisation matters more than volume. Test the right things first.
- Real results: 51.78% conversion rate (Radicle Science), 500% conversion lift (B2C Agency), CPL from $2,300 to $550 (DOOR3).
This is Apexure’s complete guide to conversion rate optimisation, distilled from 10+ years, 3,000+ projects, and 800+ A/B tests. It is not a list of generic tips. It is the system we use every day with clients like Rocket Companies, DOOR3, and Headway to turn underperforming pages into lead generation machines. Every tactic, framework, and recommendation in this guide comes from delivery experience, not theory. Use the sections below to jump to what matters most, or read end-to-end for the full picture.
This guide covers:
- What CRO is and why it matters
- The metrics that matter
- Our 13-step CRO process
- The EPIC testing framework
- 12 proven CRO tactics
- A/B testing best practices
- Tools and tech stack
- Real case studies with metrics
- Frequently asked questions
What Is Conversion Rate Optimisation?
Conversion rate optimisation (CRO) is the systematic process of increasing the percentage of website visitors who take a desired action, submitting a form, booking a demo, making a purchase, or signing up for a trial. The conversion rate formula is simple:
Conversion Rate = (Conversions ÷ Total Visitors) × 100 If 1,000 people visit your landing page and 30 fill out the form, your conversion rate is 3%. CRO matters because it is the only marketing lever that increases revenue without increasing traffic costs. A 1% improvement in conversion rate on a page getting 10,000 visitors/month means 100 more leads, every month, at zero incremental cost.
CRO delivers the same result as doubling your ad spend, but the gains are permanent and the cost per lead drops instead of staying flat.
"Their knowledge of landing page design and CRO is second to none."
What counts as a conversion?
It depends on your business model:
| Business type | Primary conversion | Secondary conversion |
|---|---|---|
| B2B / SaaS | Demo request, free trial sign-up | Content download, newsletter |
| E-commerce | Purchase | Add to cart, wishlist |
| Lead generation | Form submission | Phone call, live chat |
| Healthcare | Appointment booking | Insurance form, callback |
| Education | Application, enrolment | Brochure download |
Go deeper: Website Conversion Optimisation: 12 Proven Tactics
CRO Metrics That Actually Matter
Not all metrics are equal. These are the ones we track on every CRO engagement:
Conversion Rate
The percentage of visitors who complete the desired action. The north star metric for any CRO programme.
Cost Per Lead (CPL)
Ad spend ÷ conversions. CRO's direct impact, when CR goes up, CPL goes down proportionally.
Revenue Per Visitor
Total revenue ÷ total visitors. Connects CRO improvements directly to business outcomes.
Supporting metrics we monitor via heatmaps and analytics:
- Bounce rate, are visitors leaving immediately?
- Scroll depth, how far do they read?
- Click-through rate, are CTAs getting clicked?
- Form abandonment, where in the form do people drop off?
- Time on page, engagement signal, especially for long-form content
Go deeper: 7 Landing Page Metrics to Measure Your Performance
The Apexure 13-Step CRO Process
We do not guess. We follow a structured, repeatable process on every CRO engagement. This is the same process we have used for 5+ year client partnerships like DOOR3 and 4.5+ years with Rocket Companies.
1. Define conversion goals
What does success look like? A form submission? A demo booking? A purchase? We align on the primary and secondary conversion actions before anything else.
2. Audit current performance
We review GA4 data, existing conversion rates, traffic sources, and funnel drop-offs to establish a baseline.
3. Install heatmap and recording tools
Hotjar or Crazy Egg goes on every page we are optimising. Heatmaps show where people click; recordings show where they struggle.
4. Analyse user behaviour
We watch session recordings, study scroll maps, and identify friction points, where do visitors hesitate, rage-click, or abandon?
5. Competitor and keyword research
What are competitors doing well? What are they missing? We use Ahrefs and SEMrush to map the competitive environment.
6. Build hypothesis list
Every observation becomes a testable hypothesis: "If we move the form above the fold, conversion rate will increase because heatmaps show 60% of visitors never scroll past the hero."
7. Prioritise with EPIC framework
We score each hypothesis on Experiment value, Priority, Impact potential, and Cost, then run the highest-scoring tests first. See the full EPIC framework below.
8. Design test variants
Our design team creates the challenger variant, whether that is a new headline, restructured layout, or completely redesigned page.
9. Build and QA
We build the variant in the client's platform (Unbounce, WordPress, Framer, etc.) and run it through our 37-point QA checklist.
10. Run A/B test
Traffic splits: typically 50/50, sometimes 90/10 ramp-up for safety. We use VWO, Unbounce A/B testing, or platform-native tools.
11. Reach statistical significance
We do not call winners early. Tests run until we have enough data for a statistically valid result, typically 2-4 weeks depending on traffic volume.
12. Implement winner
The winning variant becomes the new champion. We document what we learned for future tests.
13. Repeat
Move to the next highest-priority hypothesis. CRO is a continuous cycle, not a one-time project. The best results come from compounding improvements over months and years.
Why 13 steps?
Go deeper: The 13-Step Website CRO Process in Our Agency
The EPIC Testing Framework
With dozens of potential tests to run, how do you decide which one to run first? Most teams either pick randomly or default to the loudest opinion in the room. At Apexure, we use our proprietary EPIC framework to score and prioritise every test hypothesis:
Score each test 1-5 on all four dimensions. Run the highest total first. This prevents teams from wasting cycles on low-impact tests.
We built EPIC because generic frameworks like ICE and PIE kept steering us toward easy tests instead of effective ones. After running 800+ tests, we found that learning value (the E) matters as much as expected impact, a losing test that teaches you something about your audience is worth more than a winning test that teaches you nothing.
Waseem Bashir
Founder & CEO, Apexure
Go deeper: CRO Testing: Everything You Need to Maximize Conversions
12 Proven CRO Tactics
These are not theoretical, each tactic comes from patterns observed across 3,000+ projects and 800+ A/B tests.
Clarity and messaging
- Write headlines that match search intent, your headline has 3 seconds to convince visitors they are in the right place.
- Optimise above-the-fold content, answer “What? Why? What next?” before the visitor scrolls.
- Write conversion-focused copy, lead with benefits, not features. Be specific.
Trust and social proof
- Add social proof near decision points, testimonials, reviews, and client logos placed near CTAs reduce friction.
- Build trust with credibility markers, awards, certifications, partner badges, and media mentions.
- Use case studies with specific metrics, “51.78% conversion rate” is more persuasive than “great results.”
Forms and CTAs
- Design CTAs that stand out, contrast, action copy, and tappable size all matter.
- Optimise form length and design, reduce fields, use multi-step flows, add inline validation.
- Use click-to-call on mobile, for high-value leads, phone calls convert better than forms.
Technical and UX
- Improve page speed, every second of delay increases bounce probability by 32%.
- Build responsive pages, 60%+ of traffic is mobile. If your forms are hard to fill on phone, you are losing leads.
- Use dedicated landing pages for campaigns, sending paid traffic to your homepage is the #1 conversion killer.
Go deeper: Website Conversion Optimisation: 12 Proven Tactics · Landing Page CRO Tips: Clarity is Everything
A/B Testing Best Practices
A/B testing is the engine that drives CRO. Without it, every optimisation decision is an opinion. With it, you have data.
What to test (in priority order)
- Headlines, the highest-impact element on most pages
- CTA buttons, colour, copy, position, size
- Form length, fewer fields vs. More qualified leads
- Social proof placement, near the CTA vs. In its own section
- Page layout, single column vs. Two column, long vs. Short
- Images and video, product shots vs. Lifestyle, video vs. Static
Testing rules we follow
Do not call winners early
- One variable at a time, unless you are running multivariate tests with enough traffic
- Test the biggest lever first, headlines before button colours
- Document every test, win or lose, the learning compounds
- Use 50/50 splits for established pages, 90/10 ramp-up for high-risk changes
Go deeper: Landing Page A/B Testing Framework · Landing Page Testing Basics · CRO Strategy Development
CRO Tools and Tech Stack
These are the tools we use daily across client projects:
| Category | Tool | What we use it for |
|---|---|---|
| Analytics | GA4 | Conversion tracking, funnel analysis, traffic source attribution |
| Heatmaps | Hotjar, Crazy Egg | Click maps, scroll maps, session recordings, form analytics |
| A/B Testing | VWO, Unbounce | Split testing, multivariate testing, traffic splitting |
| Landing Pages | Unbounce, Framer, WordPress | Page building, variant creation, rapid deployment |
| Search Console | Google Search Console | Organic CTR, keyword performance, indexing health |
| Competitor Research | Ahrefs, SEMrush | Keyword gaps, competitor landing pages, backlink analysis |
| Tag Management | Google Tag Manager | Pixel deployment, event tracking, conversion script management |
| CRM Integration | HubSpot, Salesforce, Marketo | Lead routing, form integration, attribution tracking |
Tool costs
Go deeper: 17 Landing Page Optimization Tools Every Marketer Must Know · How to Monitor Landing Pages for Optimised Conversions
How to monitor and optimise landing pages for conversion, a walkthrough of the tools and process.
Real CRO Results From Apexure Clients
Every metric below comes from a real project. No hypotheticals.
Clinical trial landing page
Conversion lift via A/B testing
Conversion increase (1.02% → 6.09%)
CPL reduction ($2,300 → $550)
Case study: radicle science, 51.78% conversion rate
Radicle Science needed to enrol 10,000 participants in clinical trials for natural products through social media ads. We built a dedicated landing page with no navigation, a single CTA, persona-matched copy, and a frictionless form.
Case study: IMD business school, 63% conversion lift
We optimised IMD’s MBA programme landing page by restructuring the above-the-fold section and repositioning video testimonials based on heatmap data showing visitors were not scrolling to key trust elements.
Case studyIMD Business School, 63% Conversion Lift via A/B Testing→
Case Study: DOOR3, CPL from $2,300 to $550
DOOR3, a NYC-based technology consultancy, had partnered with several agencies unsuccessfully before engaging Apexure. We created bespoke landing pages, set up conversion tracking, and ran targeted PPC campaigns matched their leadership team's goals.
More CRO case studies
- Board Agenda, 27.89% conversion rate (B2B registration)
- Flare.io, 65% increase in demo conversions (SaaS book-a-demo)
- B2C Agency, 500% conversion increase (form optimisation)
- Dr. Steven G, 50% organic conversion rate (healthcare funnel)
- Affordable Health, 20% conversion rate (insurance lead gen)
- Spark Advisor, 13.47% Facebook landing page (Medicare)
"Waseem and his team bring a truly unique creativity, energy, and commitment to all of the work they do. We really went from terrible performance in a lot of those areas to doing really well."
CRO by industry
We have delivered CRO projects across dozens of industries. Here are guides tailored to specific verticals:
Financial Services
E-commerce
More CRO resources
Landing page fundamentals
- Landing Page vs Homepage: Key Differences
- 13 Types of Landing Pages: Which One to Use
- What Are the Key Components of a Landing Page?
- How to Create a Landing Page Wireframe
- Landing Page Length: When to Use Short vs Long
Optimisation deep-dives
- What Is Landing Page Optimization?
- Landing Page Optimization Best Practices
- How to Improve Landing Page UX
- Landing Page Engagement Rate: 10 Steps
- 28 Landing Page Mistakes That Lose Revenue
CRO strategy
- Landing Page CRO Strategy Development
- Landing Page Funnel Guide
- CRO and UX: The Ultimate Duo
- CRO Consultant: 8 Signs It’s Time to Hire One
- How to Do Landing Page Analysis
Examples and inspiration
- 6 Best Landing Page Examples by Apexure
- 17 Landing Page Design Inspiration Ideas
- 9 Lead Generation Landing Page Examples
- Top 9 SaaS Landing Page Examples
- The Complete Guide to High Converting Pages
Ready to improve your conversion rate?
We have helped 300+ clients across 20+ countries turn underperforming pages into lead generation machines. Our CRO engagements start with a free audit.
Get a Free CRO Audit →Frequently Asked Questions About CRO
What is a good conversion rate?
The average landing page conversion rate is 2-5% across industries. Well-optimised pages regularly achieve 5-15%, and we have seen rates as high as 51.78% for highly targeted campaigns. The "good" rate depends on your industry, traffic source, and conversion goal. Focus on improving YOUR rate rather than chasing a benchmark.
How long does CRO take to show results?
Individual A/B tests typically need 2-4 weeks to reach statistical significance. However, CRO is an ongoing process, the best results come from continuous testing over months. Our long-term client engagements (some spanning 5+ years) consistently deliver compounding improvements because each test builds on previous learnings.
How much does CRO cost?
CRO investment varies based on scope. A single landing page design and build starts at $2,000. Ongoing CRO programmes with A/B testing, heatmap analysis, and continuous optimisation are custom-priced based on the number of pages and testing velocity required. The ROI typically justifies the investment within the first 2-3 months.
What is the difference between CRO and SEO?
SEO focuses on getting more visitors to your site through organic search rankings. CRO focuses on getting more value from the visitors you already have by increasing the percentage who convert. They complement each other, SEO drives traffic, CRO converts it. The best results come from doing both.
Can I do CRO with low traffic?
Traditional A/B testing requires meaningful traffic (typically 1,000+ visitors per variant per month). If your traffic is lower, you can still do CRO through qualitative methods: heatmap analysis, session recordings, user testing, and best-practice implementation. Once traffic grows, you can layer in quantitative testing.
What is the EPIC framework?
EPIC is Apexure's proprietary CRO test prioritisation framework. It scores each test hypothesis on four dimensions: Experiment value (learning potential), Priority (urgency), Impact (conversion potential), and Cost (resources needed). Tests with the highest total score run first. Learn more about EPIC →
Do I need a landing page or can I optimise my existing website?
Both. For paid campaigns, dedicated landing pages almost always outperform homepages because they remove navigation distractions and focus on a single CTA. But your existing website pages (homepage, service pages, pricing page) can also benefit from CRO, especially if they receive organic traffic.
How do I choose a CRO agency?
Look for agencies with: (1) a structured process they can explain, (2) real case studies with specific metrics, (3) experience with your tech stack, (4) a testing framework (not just "we'll try things"), and (5) long-term client relationships that prove they deliver sustained results. Read our guide to hiring a CRO consultant →