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Writing / Design · 06
Essay · 5 min · Jan 2026

One CTA per page

The most effective design change we've made this year. Not a single client has regretted it.

Sam Limbu
Sam Limbu
Founder, clupai · Melbourne
DesignBusiness

The pattern on most service business websites: a 'Book a call' button in the header, a 'Get a quote' section in the hero, a 'Learn more' in services, and a 'Contact us' in the footer. Four actions. Zero priority.

We removed three of them. Then we tested it against two client sites. Both sites saw conversion improvements within thirty days.

The psychology

Hick's Law: decision time increases logarithmically with the number of choices. Four equally-weighted CTAs force visitors to decide which action to take before they've decided to act at all.

One CTA removes that micro-decision. The visitor's entire cognitive load goes into 'do I want to do this thing' rather than 'which thing should I do.'

How to pick the one

Ask: what is the one action that, if taken, indicates real buying intent? For a service business it's almost always booking a scoping call. Not downloading a PDF, not subscribing to a newsletter—booking time.

Secondary actions (email, social links, 'read more') can still exist in context—in the footer, in a blog post CTA. They just don't compete with the primary on key conversion pages.

A page with one CTA tells visitors what to do. A page with four tells them nothing.

The exceptions

For everything else: pick one, make it obvious, and stop helping users get confused.

Keep reading
clupai.com/contact

Right. Shall
we scope it?

Twenty minutes. No slideshow. We'll ask what you sell, who's buying, and where the site is getting in the way. You'll leave with a realistic estimate—or a reason we're not the right fit.

Replies within one AU business dayABN · Melbourne · VIC