Landing pages that convert: a checklist

Summary: A landing page converts when it asks for one action, states the outcome in the headline, backs it with genuine proof, keeps the form short and loads fast on a phone.

One page, one goal

Every landing page should ask for one action. Extra links and secondary offers compete for the same attention and lower the rate for all of them.

Headline and proof

State the outcome the visitor gets in the headline, then back it up with reviews, logos or a number above the fold.

Reduce friction

Keep forms short, make the button say what happens next, and make sure the page loads fast on a phone over mobile data.

Test one change at a time

Change the headline, offer or form one at a time, and give each test enough traffic to be meaningful before calling a winner.

The checklist

Run through this before any landing page goes live.

One goal, and one primary button that says what happens next.
A headline that states the outcome for the visitor, matching the ad or search that brought them.
Proof near the top: a genuine review with its source, a client you have permission to name, or a specific result.
A form with only the fields you need to reply.
No main navigation competing with the call to action.
Fast on mobile data, with the headline and button visible without scrolling.
A privacy note next to the form and a visible way to contact a person.

Message match

The quickest win on paid traffic is matching the page to the promise that brought the visitor. If the ad says “same-day boiler repair in Leeds”, the headline should say the same thing, not “Welcome to our website”. Mismatches make people hit the back button.

Honest proof only

Proof is powerful, which is why it is regulated. In most countries, testimonials must be genuine and you must be able to show they are; fake or unverifiable reviews can breach advertising rules and consumer law. One real, named review beats ten anonymous five-star quotes.

Key takeaways

One page, one goal, one primary button.
Match the headline to the ad or search that brought people.
Use only genuine, verifiable proof.
Cut every form field you do not need.

Questions, answered

How long should a landing page be?

Long enough to answer the questions that stop people acting. Simple offers can be short; considered purchases need more detail, as long as the call to action stays visible.

How much traffic do I need to A/B test?

Enough for each variation to collect a meaningful number of conversions, often a few hundred per variation. With less traffic, test bigger changes and judge over longer periods.

Should I remove the navigation?

On paid campaign pages, usually yes. On pages that also serve organic visitors, keep a slim navigation so people can explore.