Calls to action that work: how to write CTAs people click

What is a call to action on a website?

A call to action is a prompt, usually a button or link, that asks the visitor to take a specific next step. It turns interest into action: from reading about a treatment to booking it, from looking at a portfolio to requesting a quote.

Most business websites use a few kinds:

• Primary CTA: the main action you want, such as “Book a consultation”, “Get a quote” or “Book a trial class”.
• Secondary CTA: a lower-commitment option for people who aren’t ready yet, such as “See prices” or “View our work”.
• Channel CTAs: “Message us on LINE”, “Chat on WhatsApp” or “Call now”, for people who prefer talking to filling in forms.
• Content CTAs: links at the end of articles and service pages that move readers on to the next useful page.

Every page on a business website should end somewhere. If a visitor reaches the bottom and there is no obvious next step, the page has stopped one step short of its job.

How do you write a call to action that works?

Write CTAs that say exactly what happens when the button is pressed, in words the visitor would use. These seven rules cover most cases:

1. Start with a verb. Book, get, see, start, download, message. The button should describe an action.
2. Name the outcome, not the mechanism. “Get my quote” describes what the visitor receives; “Submit” describes what the form does.
3. Be specific to the page. On a page about laser treatments, “Book a laser consultation” is clearer than a generic “Contact us”.
4. Match the commitment to the moment. Early on the page, a softer action such as “See how it works” may suit; after prices and proof, ask for the booking.
5. Keep it short. Two to five words is usually enough. Put extra reassurance in a line beneath the button rather than cramming it into the label.
6. Reduce the perceived risk. A short line under the button, such as “No obligation. We reply within one business day.”, answers the hesitation many people feel at the last moment.
7. Use your customers’ words. If clients talk about a “first session”, don’t call it an “initial onboarding consultation”.

For the wider principles of persuasive pages, see website copywriting tips.

What do strong and weak calls to action look like?

Strong CTAs tell visitors what they get; weak ones only tell them to do something. Here are common rewrites:

The pattern is the same each time: the stronger version removes guesswork about what happens next. Whatever you promise on the button, make sure the next screen delivers exactly that.

Where should calls to action go on a page?

Put calls to action wherever a visitor is likely to have just made up their mind. That is rarely only at the top of the page. Useful places include:

• The first screen, for returning visitors and those who already know what they want.
• After proof, such as reviews, case studies or before-and-after photos.
• After prices, when a visitor has just confirmed the service is within budget.
• After the FAQ, when the last objections have been answered.
• The end of the page, so nobody reaches the bottom without a next step.
• The header, as a compact button that stays visible on every page.
• A sticky bar on mobile, so the action is always within thumb’s reach; see mobile-first web design.

Repeating the same primary CTA several times is not pushy, as long as each one appears at a natural decision point. Our guide to what to put on your homepage shows where these fall on a typical page.

How should a call to action button look?

A primary button should look clickable, stand out from everything around it and look the same everywhere. Visitors learn your button style quickly, and consistency helps them find it again.

• Contrast. Choose a button colour that contrasts with the background and isn’t used for decoration elsewhere. The WCAG accessibility guidelines ask for a contrast ratio of at least 4.5:1 for normal-sized text, including button labels.
• Size. Large enough to tap comfortably on a phone. Apple recommends touch targets of at least 44 by 44 points.
• Space. Give the button room. A button crowded by links and text is easy to overlook.
• Hierarchy. Primary actions are solid; secondary actions are outlined or styled as text links, so the two never compete.
• Feedback. Show hover and pressed states, and a loading state after a click, so people know something is happening.

There is no single best colour for a button. What matters is contrast and consistency, not whether it is orange or green.

Should a page have more than one call to action?

A page should have one primary call to action and, at most, one secondary option. Several equally weighted choices make it harder for visitors to choose anything.

The secondary option exists for people who aren’t ready yet or who prefer a different channel. Good pairings include:

• “Book a consultation” with “See prices”.
• “Get a quote” with “View our work”.
• “Book a trial class” with “Message us on LINE”.

Messaging channels deserve a special mention. LINE is widely used in Thailand, and in many other markets WhatsApp plays a similar role, so plenty of customers would rather send a message than fill in a form. If you offer a chat option, someone has to answer quickly, or an AI agent on LINE and WhatsApp can reply and book on your behalf.

How do you know if your calls to action are working?

Measure both the click and what happens after it. A button can look busy and still lose enquiries one step later.

1. Track button clicks as events in your analytics, labelled by page and position.
2. Track completions: forms sent, bookings made, calls started. A button with plenty of clicks but few completions points to a problem on the next step, often the form.
3. Change one thing at a time and give each change enough time and traffic to judge it fairly.
4. Use A/B testing only with enough traffic. On smaller sites, careful single changes are more reliable than split tests that never reach a clear result.

If clicks are healthy but enquiries are not, read contact forms that convert next. At PJW Partners, we decide the main action for every page before design begins, and it has shaped all 50+ websites we have built. If you would like a fresh look at yours, tell us about your business.

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