HomeArticles › What is a sales funnel, and why yours leaks

What is a sales funnel, and why yours leaks

A sales funnel is not a set of pages. It is a set of decisions the visitor takes one after the other, and every page has one job: making the next decision obvious.

By Gaëtan Chardon, fractional CMO · Updated August 30, 2026

In short

A sales funnel is the sequence of steps that takes a stranger to a purchase, each step asking for one commitment at a time. It is measured step by step rather than overall, because a funnel never leaks everywhere: it leaks in one precise place, almost always the same one.

Most definitions describe a sales funnel as a series of pages. That describes what it looks like, not how it works.

A sales funnel is the sequence of steps that takes a stranger to a purchase, each step asking for one commitment at a time. What moves through a funnel is not visitors. It is decisions.

That distinction changes everything you do with it. A page is not judged on its design or its length, but on one question: does it make the next decision obvious to someone who hesitates?

The real stages

Names vary by industry, the mechanics do not. Each stage matches a commitment more expensive than the last.

Attention. The person agrees to stop. She gives you seconds. That is the job of advertising, content or search.

Interest. She agrees to read or watch. She gives you minutes. That is the job of the landing page or the video.

Identification. She agrees to hand over an address or a number. She gives you permission to come back. That is the job of the capture page.

Consideration. She agrees to examine the offer for real. She gives repeated attention. That is the job of the email sequence, the webinar or the sales page.

Decision. She agrees to pay, or to book a call when the price calls for a conversation.

A funnel that skips a stage does not move faster. It loses the people who were not ready for the next commitment, and it loses them for good.

Why yours leaks

A funnel never leaks everywhere. It leaks in one place, and that place is almost always one of these four.

The promise changes between two steps. Your ad announces a hiring method, the page talks about growth in general. The visitor does not think "this is inconsistent", he thinks he landed in the wrong place, and he leaves without wording anything.

You ask too early. An eight-field form before giving any reason to trust you. Every extra field is a commitment, and commitment has to stay proportional to what the person has received so far.

The step removes no objection. A page that repeats the promise without handling what blocks people moves nothing. At every step one precise objection has to fall: price, time, credibility, the risk of being wrong.

Nothing happens after the opt-in. People sign up, then wait. A funnel that leaves forty-eight hours of silence after a sign-up loses most of the intent it just created.

Measuring step by step

This is where most funnels are commented on rather than steered.

An overall conversion rate of one percent tells you nothing. You need the passage rate from each step to the next:

Passage What it measures When it is low, the problem is
Ad to page Does the promise catch the right problem The hook or the targeting
Page to form Does the page keep the promise The content of the page, not the design
Form to opened emails Was the sign-up sincere The lead magnet, often too generous
Emails to sales page Does interest survive the delay The rhythm and content of the sequence
Sales page to purchase Does the offer clear the last objection Price, guarantee or proof

Put those five numbers side by side and the leaking step shows up in minutes. Without them, people redesign the sales page when the problem was in the lead magnet.

The over-generous lead magnet

Plenty of funnels capture beautifully and sell badly. The cause is almost always the same: the lead magnet is so complete that it solves the visitor's problem, or it attracts people who never had that problem.

A good lead magnet solves one stage of the problem and makes the next one visible. It does not replace the offer, it makes the offer necessary.

The test is simple. If someone can download your document, apply it and no longer need you, your lead magnet is working against your funnel.

Build it backwards

The build order is the reverse of the walk order. You start at the sale and work back.

You write the offer and its price first. Then the page that sells that precise offer. Then what someone has to understand for that page to land, which gives you the sequence. Then what you must promise for someone to accept that sequence, which gives you the lead magnet. And only at the end, the advertising.

Building the other way round produces the most common funnel on the market: a beautiful capture page, a sequence written in a hurry, and an offer that has nothing to do with what was promised at the door.

A funnel is not a tool

People confuse the funnel with the software hosting it. Switching tools does not repair a leaking funnel, because the leak is in the chain of decisions, not in the technology.

When sales do not come, the right reflex is not to rebuild everything. It is to lay out the five passage rates, find the step that drops, and work only on that one. A funnel is repaired step by step, and the first repair often changes the whole result.

Frequently asked questions

What is the difference between a sales funnel and a website?

A website lets the visitor choose where to go. A funnel offers one action at each step. The site informs and reassures, the funnel moves people forward. Both work well together, as long as you do not ask the site to sell or the funnel to explain the whole company.

How many steps should a funnel have?

The number of steps follows from price and perceived risk, not from a general rule. A thirty-dollar product supports one page and a checkout. A several-thousand-dollar engagement calls for a qualification step and a conversation. Adding a step is justified only when it removes an objection the previous one could not.

Does a funnel need a webinar?

A webinar is not a mandatory step, it is a tool for offers whose value has to be demonstrated rather than described. If your customer understands the point in thirty seconds of reading, a webinar adds friction for nothing.

How do I find where my funnel loses people?

Measure the passage from each step to the next, not the overall rate. A funnel converting at one percent does not lose ninety-nine percent evenly: it has one step where passage collapses, and that step becomes visible as soon as the numbers sit side by side.

Want to find the step that leaks in your funnel instead of rebuilding all of it?

Book a 45-minute session

You leave with three decisions to execute and the plan within 24 hours.

Read next : The 45-minute working session · Meta ads consulting · The product launch timeline