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4 Best Practices For Conversion Rate Optimization (CRO)

4 Conversion Rate Optimization Best Practices
4 Conversion Rate Optimization Best Practices
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Table Of Contents:

1. The CRO process
2. Avoid the CRO turbulence
3. Measure customer satisfaction for CRO success
4. Exit surveys
5. Confirmation page surveys
6. Net Promoter Score survey
7. Measure enquiries to customer services

What is Conversion Rate Optimization (CRO)

Conversion Rate Optimisation (CRO) is the process of understanding pain points associated with a conversion path (e.g. from click to sale, lead or other important business metric) and creating test hypotheses from which to create incremental growth.

If you analyse incoming traffic sources, device usage and perhaps other segments such as the country of visit, recency, bounce and exit rates via your analytics tool, you’ll quickly discover some interesting data points.

Perhaps your bounce rate on the homepage is higher than the oft-cited 30% benchmark? Maybe on desktop devices it is much lower and mobile much higher? Or perhaps certain countries don’t progress beyond the homepage compared to others?

Whatever the insights and the conclusions you draw, your ultimate goal concerning conversion rates, is an improvement. This could be a conversion from homepage to the product page, or from homepage to purchase completion. The point is, your single-minded focus will likely be on CRO metrics.

For those more experienced, you’ll add add layers of user testing, focus groups, customer calls, heat-maps, session replays and many others to give you deeper and more meaningful insights, if not the answers to creating better conversion rates.

The CRO process

In CRO, it’s important to break your metrics down into macro and micro level goals which might include clicking an ad (i.e. click through rate – CTR – from view to click) or purchasing an item (involving many more clicks and thus conversion points).

Analysing a typical view of the customer journey, there are a few ways to squeeze more sales further down the funnel.

CRO sales funnel

A popular method is to increase the width of the funnel through acquiring more traffic. Another option is to reduce people exiting from the lower portion of the funnel, likely your checkout or sign-up page. Both are aimed at pushing more customers down toward your end conversion goal of more leads or sales.

So it would stand to reason that at every customer touchpoint, from seeing an ad through to the landing page and each subsequent click through your site, the funnel should be optimised to enable you to glide through your journey as a bird soars the skies.

Each area of the funnel has its methods of uncovering insights and building hypotheses and test plans to help create more conversions. You might run some face to face usability tests to gather insights, record and replay user sessions on your site, dive into analytics, load some heat maps or remote user testing.

CRO as a framework and set of processes can create the environment for good insights, hypotheses and tests. And that’s not all there is to it.

Avoid the CRO turbulence

Picture this – you want to buy a car and have a budget in mind. You search online, find the make and model that interests you then visit your local dealer to find out more about the car.

The dealer is an experienced salesman with his monthly sales targets. What’s going through his mind as you approach? Possibly on hitting his end of month revenue target and what he’ll do with the extra cash that month. He’s probably not thinking about your financial situation and preferences as much as you are.

And this for me is the CRO sucker punch – placing over emphasis on the quick sale or sign-up to the detriment of customer satisfaction. That is, satisfaction after the sale is complete and the purchased item has been consumed, received or otherwise utilised. Think of the successful companies you know of and the customer experience offered by the very best. It is no coincidence that success and customer satisfaction go hand in hand.

CRO is now a game of insights, science and intellect. There are studies on how the brain reacts to colours and images, of how the right persuasive copy can lead the user anywhere, insights on design languages and Z or F layouts, button placements, photography, font sizes and styles. But if you’re working tirelessly on improving your site’s conversion rate at every opportunity, where do you draw the moral line on whether you’re acting in the right interest of the consumer? It’s possible to use persuasion to guide customers down a route which they may not have otherwise wanted to go.

Digital marketing (under which I’m placing CRO for convenience) is often far removed from the product/merchandising and ops teams. ‘We’ bring the traffic and convert it, ‘they’ ensure it’s in stock and deliver it. Who’s owning the customer? That’s covered by the Customer Services (CS) team right. Not entirely.

If you believe CS own the customer, then you’re missing the reason why customers are contacting CS, either pre or post-purchase; many will likely have questions about things you couldn’t answer online. A CRO fail.

Measure customer satisfaction for CRO success

By collecting feedback on the customer’s experience through the process, you can reign in your CRO mastery to ensure your scientific experimentation doesn’t inadvertently create brand damage. There are a few options here:

  • Run an exit survey to track and monitor satisfaction with aspects of the experience such as design, usability and information
  • Survey customers on the order confirmation page to measure overall satisfaction with their experience
  • Send a Net Promoter Score (NPS) survey a week after the item has been delivered or in the case of a holiday, after they have arrived back.
  • Measure customer service enquiries for volume and topic

The intent is to create a benchmark to track CRO outcomes. You will want to maintain a positive level of feedback through the experience that CRO Analytics will not be aware of, especially if it affects the customer after purchasing. The impact of your CRO work does not end with a purchase.

These following techniques are useful to benchmark on a regular basis to look at the wider impact of your CRO programme on site accessibility, usability, design, functionality and most importantly, direct impact on the user’s experience of your brand or business.

1. Exit surveys

Exit surveys have taken a back seat on many insights programmes in favour of the quick single question formats introduced by the likes of WebEngage. However, they still have a part to play. The mechanic is to pop up a notification whilst the user is on your website asking them if they would like to participate in a survey after they have finished browsing.

The survey is then presented either as a new tab/window for them to respond to later, or using ‘exit intent’ the survey can be displayed once the user has moved their cursor toward the toolbar of the browser (doesn’t work on touch only devices such as mobiles and tablets). The exit survey is useful to screen users but to also create an ongoing gauge of satisfaction with aspects of the user journey, such as design, functionality, site speed etc as well as knowing why they left if they didn’t purchase or sign up.

2. Confirmation page surveys

These are similar to the exit survey however you’re instead targeting your customers – those that have purchased or signed up. The exit survey will primarily cover those that have not converted (likely the majority of your users) but there is also some merit in gaining similar feedback as the exit survey with customers; how did they find the checkout/sign-up page? Were there any barriers? What persuaded them to buy/sign up? You can segment responses here with those on the exit survey if running parallelly to understand what impact your existing CRO tests are having when measured over time.

3. Net Promoter Score survey

Net Promoter Score (NPS) is a unified measure of customer satisfaction based on whether a customer would recommend you, or not, to friends and family. The idea being that you can measure your brand advocacy over time. There is a good relationship between business success and NPS. NPS scores range from -100% to +100% (so a swing of 200 percentage points) and is calculated by allowing customers to score you from 1 to 10 and to take the score of those giving 8 or above and detracting those giving a score of 5 or below (Promoters – Detractors). In this model, a 6 or 7 is on the fence (Passives). NPS is best conducted once the user has received the goods or started using your service, so they know what they’ve bought into. The NPS score is your gauge of overall satisfaction.

Net Promoter Score (NPS) Survey

If a CRO test led to many people being mis-sold a product or service, you can bet your NPS score will take a plummet. As with everything, segmenting your NPS score will give you the most insight (new v return customers, by country, sales channel, etc.).

Also Read: Net Promoter Score: 5 Actions Plan you must take after measuring NPS

4. Measure enquiries to customer services

Another important measure and arguably one that you want to reduce are the number of enquiries to your CS teams, whether calls or emails. A good website experience tailors to most of the user’s needs throughout the journey. It’s important to create a feedback loop with your CS team and keep them involved in CRO test planning as they’re likely on the front line and understand customer pain points better than anyone.

It may not form part of your CRO goal to reduce CS enquiries (unless optimising your FAQs to support conversion) however often the CS team are hit with enquiries directly related to your CRO tests. Perhaps you’re AB testing the payment page, and a customer is seeing something different to the CS advisor? Make sure the team are fully aware of tests and how to replicate the same versions customers are seeing.

An interesting measure is to monitor not only the impact on CS volumes but also the type of enquiries coming in. Perhaps you’re generating more support requests due to some new process you’re testing on your C variant? Maybe it only affects return customers/visitors? Keep CS close to your CRO programme.


If you don’t have the mechanisms in place to measure the end-to-end customer experience, then you may never know why customers don’t come back, ultimately paying the price for future growth. Are you taming your inner CRO beast? These options to track the impact of your CRO programme are the shackles by which to ensure your conversion rate optimisation programme is delivering in the interests of your business and your customer. Can your CRO efforts be successful without these controls? I’d reframe that question – can your business be successful without them?

(This post is adapted from the original which first appeared on econsultancy.com)

Bonus Read – Boost Mobile Conversion Rates By As Much As 40%


Head of SEO, 


Asad has a collective experience of over 7 years in the Digital marketing industry and is currently working for GO-Gulf, a Dubai based eCommerce web design company. As leading executive for GO-Gulf, he has specialized in search engine optimization, conversion boosting and keyword targeting. You can reach him on LinkedIn

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