Conversion funnel: definition, steps and optimisation
Updated on February 22, 2026
Quick definition
The conversion funnel is the visual representation of the successive steps a user goes through from arriving on the site to completing the final goal, allowing drop-off rates at each transition to be visualised and measured. The conversion funnel is the central analytical tool for diagnosing friction points in the user journey.
How it works
A conversion funnel models a user's journey through a defined sequence of steps, showing how many people make it through each step and how many drop off.
Example on a SaaS site:
- 1Visit homepage
- 2Visit pricing page
- 3Click 'Free trial'
- 4Fill out sign-up form
- 5Confirm sign-up
If 10,000 visitors enter step 1 and only 150 reach step 5, the overall conversion rate is 1.5%. But the per-step analysis reveals where drop-offs concentrate: if 60% of users leave between step 3 and step 4, it is the sign-up form that should be optimised first.
Funnel analysis can be refined by segment (mobile vs desktop, organic vs paid traffic) to identify whether certain groups encounter more difficulties than others.
Why it matters
Without funnel analysis, you optimise blindly. The funnel makes every friction step visible and lets you prioritise optimisation efforts where the impact on the final conversion rate will be greatest.
It is the indispensable tool for any structured CRO (Conversion Rate Optimisation) initiative, whether for:
- An e-commerce checkout
- A SaaS sign-up flow
- A B2B lead-generation journey
How to improve or use it
- 1Precisely define your funnel steps based on the ideal user journey.
- 2Identify the two or three steps with the highest drop-off rates.
- 3Use A/B tests to measure the impact of your changes.
- 4Segment the analysis by device type, traffic source and user profile.
- 5Use heatmaps to visually understand behaviour on high-drop-off pages.
With Sublim
Sublim offers native conversion funnel visualisation, allowing you to quickly identify critical drop-off steps. Cookie-free and GDPR-compliant, Sublim captures journey data ethically and provides full unsampled data, unlike GA4.
Frequently asked questions
What is the difference between an entonnoir de conversion and a funnel de conversion?
There is no difference: 'entonnoir de conversion' is the French translation of 'conversion funnel'. Both terms refer to the same visual representation of user journey steps. In French analytics practice, the two terms are used interchangeably.
How many steps should a conversion funnel contain?
An effective funnel typically contains between 3 and 7 steps. Too few steps make it impossible to precisely locate drop-offs. Too many steps make analysis complex. The goal is to capture key decision moments in the user journey.
How can I reduce the drop-off rate in a funnel?
Analyse pages or steps with the highest drop-off rates, use session recordings or heatmaps to understand behaviour, simplify forms, improve CTAs and test variations with A/B tests targeted at the critical steps.
Related terms
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