Can Better Design Make a Website Feel More Credible?

The Question

Business owners usually think of credibility as something they establish with facts: years in business, reviews, credentials, guarantees, case studies, and certifications. All of those matter.

But before someone digs into that evidence, they are looking at the website carrying it. If the page feels dated, careless, confusing, broken, or thrown together, the visitor is already receiving information about the business—even if none of those signals were intentional.

So the question is straightforward:

Can the way information is presented change how believable that same information feels?

What the Research Examined

David Robins and Jason Holmes tested that question by creating two visual versions of the same webpages. [1]

They selected 21 existing landing pages. One version retained the original visual treatment. For the second version, the researchers stripped away visual enhancements while leaving the underlying content unchanged. That produced 21 matched pairs, or 42 webpage images. [1]

Twenty participants were then shown those images individually and asked to make quick credibility judgments based on their first impression. In total, the participants made 840 credibility judgments. [1]

That setup is useful because the words were not the variable. The content stayed the same. The presentation changed.

There is also an important limitation: this was a small convenience sample, largely drawn from Library and Information Science graduate students. The researchers themselves warned that the findings might not generalize cleanly beyond that population. [1]

So this is useful evidence. It is not the final word on how every customer judges every website.

What the Research Found

Across the full set, the webpages with the stronger aesthetic treatment received higher credibility ratings overall, with the difference between the high- and low-aesthetic groups reaching statistical significance. More specifically, the stronger visual treatment produced a higher credibility score than the stripped-down version in 19 of the 21 matched pairs. [1]

That does not mean all 19 differences were individually statistically significant. They were not. The paper reports significant pair-level differences for a smaller subset. The broader finding was that the visual treatment generally shifted credibility judgments upward. [1]

The judgments also happened quickly. Participants took only a few seconds on average to rate each page, which is one reason the researchers described the effect as operating at a more immediate or “visceral” level of judgment. [1]

Put plainly: People were looking at the same information, but the better-presented version generally felt more credible.

What This Does—and Doesn’t—Tell Us

Credibility Is Bigger Than Good Design

This is where the finding can get abused.

The study does not tell us that a polished website makes an unreliable company trustworthy. It does not show that visual quality replaces proof, and it definitely does not show that prettier pages automatically generate more revenue.

The authors make an important point: as people spend more time with the content, they gain access to other credibility signals such as the source and its authority. The initial visual effect may therefore matter most early in the judgment process rather than remaining the only thing that matters. [1]

That fits with broader web-credibility research. A large Stanford study involving 1,410 participants found that perceived web credibility was influenced by several kinds of signals, including real-world legitimacy, ease of use, expertise, trustworthiness, and tailoring. The researchers also found that amateurism and overly commercial characteristics could hurt credibility. [2]

That is a much more realistic picture of how trust works. Customers are not asking one question. They are trying to work out whether the company looks legitimate, whether it seems competent, whether they can find what they need, whether the business knows what it is talking about, whether its claims can be verified, and whether this feels like someone they are comfortable giving money or information to.

Design influences that judgment. It does not own the whole judgment.

Later Research Points in the Same General Direction

More recent research continues to show relationships between website presentation and trust, while also making clear that context matters.

A 2016 experiment examining unfamiliar online vendors found that visual appeal influenced users’ evaluations of trust, alongside ease of use. The relative effects were not identical across participants, which is another reason to avoid reducing trust to a single design rule. [3]

Another 2016 study had participants assess websites for visual appeal, perceived usability, and trustworthiness across different exposure times. The researchers proposed a sequence in which visual appeal is evaluated very quickly, while judgments of usability and trustworthiness continue developing with additional exposure. [4]

And a 2023 study involving 1,530 participants and more than 3,000 webpages found strong relationships between webpage prototypicality—how much a page resembles what users expect for that type of site—and perceived trustworthiness. [5]

The useful pattern is not: Make it pretty and people will trust you.

It is: People use the website itself as evidence when deciding what they think about the business behind it.

The evidence supports the idea that visual presentation can influence perceived credibility, particularly during early impressions. It also supports a broader point: credibility is built from multiple signals. Appearance, usability, recognizable patterns, expertise, source quality, and evidence can all contribute to the judgment.

What it does not establish is that aesthetically stronger websites automatically convert better. It does not tell us which font, color palette, layout, or design style produces the most trust, and it does not mean a business can design its way around a weak offer, questionable claims, bad reviews, or poor service.

A polished website can improve the way information is received.

It cannot make bad information good.

What This Means for Your Website

A lot of businesses treat design as the layer that gets added after the “real” work is finished: write the copy, list the services, drop in the testimonials, add a form, and then make it look nice.

The research gives us a good reason to reject that sequence. Presentation is part of how the content gets evaluated.

If an important claim is buried in a cluttered page, supported by weak hierarchy, surrounded by inconsistent typography, or sitting next to something that feels broken, the visitor does not experience the claim in isolation. They experience all of it at once.

For a service business, this matters because the website is often asking someone to make a fairly serious commitment: call a company they have never dealt with, invite someone to their home, request an estimate, give up contact information, schedule an appointment, or spend thousands of dollars.

A business asking for that kind of trust should look like it understands the responsibility. That does not require flashy design. It requires care, clarity, consistency, and evidence.

If design affects credibility, businesses can conclude that the answer is to make everything feel “premium”—more animation, more visual effects, more photography, more dramatic typography, and more expensive-looking everything.

That can miss the point just as badly as ignoring design altogether.

Credibility depends on whether the experience feels appropriate for the business and the decision being made. A plumber does not need to look like a luxury fashion house. A law firm does not need to look like a technology startup. A local contractor does not need an experimental interface.

The website needs to look competent, intentional, current, and believable for the company it represents.

That is a much higher bar than “make it pretty.”

Stanford’s large credibility study found that ease of use, markers of expertise, real-world organizational signals, and trustworthiness cues all contributed to perceived credibility. [2]

So the goal is not: design instead of proof.

It is: design that helps the proof get understood.

That distinction matters.

The Practical Takeaway

Look at your website as if you knew nothing about the company behind it.

Before reading every sentence, ask what the page already implies. Does it look maintained? Does the information feel organized? Do the claims seem considered or promotional? Can you tell who is behind the company? Can you find evidence that supports what they say? Do the details look like someone cared enough to get them right?

Then read the page and ask whether the substance lives up to that first impression.

The strongest credibility comes when those two things agree.

The website looks competent because the business is competent—and the evidence on the page gives the visitor a reason to believe it.

Where This Applies at CTG

New Websites

A new site has to establish credibility without relying on years of accumulated familiarity with the old experience. We use hierarchy, clear positioning, evidence, recognizable interaction patterns, and appropriate visual quality to help the business make a credible first impression.

Website Redesigns

A redesign is not just an aesthetic refresh. We look at where the existing site may be creating doubt through dated presentation, inconsistent systems, poor usability, weak proof, or confusing information—and what should be preserved because it already carries trust.

Landing Pages

Paid visitors often arrive without much prior relationship with the business. The page has to make the offer understandable and support it with enough credibility for someone to keep moving. Design, message, proof, and next step have to work together.