Usability testing

Usability testing is when you watch real people try to use your product and note where they get stuck. Instead of guessing how someone will move through your signup flow or your dashboard, you put a representative user in front of it, give them a task ("sign up and create your first project"), and observe. The thing that's obvious to the person who built the feature is usually the thing that confuses everyone else, and the only way to find that out is to watch.

The trap is leaning on numbers alone. Analytics will tell you 40% of people drop off at step two; they won't tell you why. Usability testing fills that gap. It's the qualitative layer that turns a drop-off number into a fixable cause: "they couldn't tell which fields were required."

You don't need a lab. Five to eight people is enough before you hit diminishing returns. Hand them a few real tasks, ask them to think aloud, and resist the urge to help unless they're truly stuck. Then look for patterns: if three people trip on the same button, that's your next fix.

How to run it

Say you're trying to understand why people abandon a flow rather than just that they do. Record real sessions with Microsoft Clarity or Hotjar and watch the replays: heatmaps and rage-clicks show you exactly where users hesitate, hover, and rage-click on something they thought was a button. That's unmoderated usability testing at scale, no scheduling required.

For moderated sessions, say you want to watch a prospect attempt your onboarding live. Record the session in Loom so the whole team can rewatch the moment a user got confused, instead of relying on your hurried notes.

And once testing surfaces a friction point, you turn the insight into a measured fix. Say usability testing tells you the signup form feels overwhelming. Build both the long and short version in VWO and split-test them, so the change you make off a handful of observations is confirmed against real conversion data before you ship it everywhere.

Why it matters

For B2B growth, usability is conversion. If prospects fight your navigation or signup, you lose deals. If customers can't find features, they churn. The small fixes usability testing surfaces, clearer labels, simpler steps, better defaults, compound into real funnel gains, and they're cheaper to find now than to discover after launch.

An enterprise software platform conducted usability testing with new users and observed that they frequently struggled to locate specific administrative settings despite the settings menu being well-labelled. Users expected certain settings to be in different locations based on their mental model of the system. By reorganising navigation based on how users expected to find features, the team reduced time to locate common settings by 60% and increased perceived product usability ratings significantly.

A marketing platform observed that despite offering comprehensive onboarding documentation, a significant percentage of customers did not adopt key features. Usability testing with new customers revealed that users frequently did not realise features existed and weren't accessing documentation. The team created in-app tooltips and onboarding flows that guided users through creating their first campaign. Post-testing observation showed that users who experienced guided onboarding adopted key features at 3x higher rates than those using self-service documentation alone.

Usability testing prevents building products that don't work the way users expect. Assumptions about how users will interact with a feature often prove wrong when tested. What seems logical to the person who built the feature confuses actual users. Testing identifies these gaps before significant development investment or after minimal feature use reveals poor adoption.

For B2B growth teams, usability insights directly impact conversion rates and adoption. If prospects struggle with your website navigation or signup flow, you lose conversions. If customers struggle with product onboarding, they churn. Small improvements identified through usability testing - simplifying signup, clarifying key messaging, improving navigation - compound into significant improvements in funnel metrics.

Usability testing also provides qualitative insights that quantitative data cannot. Analytics tell you that 40% of users drop off at a particular step. Usability testing shows you why - what specific confusion or friction caused them to abandon the process. These insights enable targeted solutions rather than trying multiple fixes.

A B2B SaaS platform conducted usability testing with prospects and discovered that approximately 40% of users abandoned the signup flow after the second step. Through testing, they observed that users were confused about what information was required versus optional at each step, and several users failed to notice email verification requirements. Simplifying the form, adding clearer labels, and adding email verification reminders reduced abandonment to 15%. This single improvement, identified through usability testing, increased conversion rates by 30%.

Conduct usability testing by recruiting 5-8 representative users (more diminishes returns). Create a list of specific tasks you want to observe - typical tasks for a B2B platform might include signing up, finding a specific feature, completing a particular workflow. Ask users to think aloud as they attempt tasks, verbalising their thoughts and confusion. Observe where they succeed and where they struggle.

Take detailed notes on specific friction points. Don't interrupt or help users unless they are completely stuck - the goal is to see how they naturally interact with the product. After testing, analyse patterns across participants. If multiple users struggled with the same element, that's a priority fix. Prioritise fixing usability problems that impact core user journeys and high-volume interactions.