How to use images on your website

Take any website that lost you in the first few seconds and scroll back to the top. Chances are the images had something to do with it. A stock photo of smiling strangers who look nothing like the people this business actually serves. A hero image so vague it could belong to any company in any industry. Or no images at all, leaving the page feeling bare and unfinished. Images on a website are not decoration. They are communication. This article covers what website images actually do, how to pick the right ones, where they belong on each page, and what happens when you get it wrong.

Visitors process images faster than words. Before anyone reads your headline, their brain has already formed a first impression from the visual. That means your images are making an argument about your business before you get to make one yourself. The question is whether that argument is the one you want to be making.

What are website images actually doing?

Every image on your site is telling a visitor something. The hero image on your homepage is saying "this is the kind of business we are and this is who we are for." The photo on your about page is saying "there are real people here." The product shot on your service page is saying "here is what you get when you work with us."

When those signals are clear and relevant, visitors feel oriented. When they are vague or generic, visitors feel nothing, which is the worst outcome. A visitor who feels nothing has no reason to keep reading.

Images also guide where the eye goes. This is the core of visual hierarchy on a page. A well-placed image pulls attention toward the section that matters. A poorly placed one splits attention, making the visitor uncertain about where to look next. Every image should be earning its position by helping the visitor move in the right direction.

Real photos versus stock photos — does it matter?

Yes. More than most people expect.

Visitors are better at spotting stock photos than they were five years ago. The perfectly lit meeting room with four ethnically diverse professionals nodding at a laptop. The handshake in front of a cityscape. The smiling woman holding a coffee cup. These images are so common that visitors have developed a kind of visual immunity to them. They see them and register nothing.

Real photos do the opposite. A photo of your actual shopfront, your actual team, your actual finished work. These images are specific to you and only you. A visitor who sees them gets evidence that a real business exists behind the website, which is one of the most valuable things an image can communicate. Even a phone photo taken in good light is often more effective than a polished stock image, because it is real.

That said, stock photography has its place. For blog articles, for illustrating abstract concepts, for filling secondary image slots where specificity matters less, a well-chosen stock photo does the job. The rule is: use real photos where trust is on the line, and use stock photos where the image is purely supporting the content rather than making a claim about your business.

How do you pick the right image for each page?

Before you look for an image, ask what job it needs to do on that specific page.

On your homepage, the hero image needs to communicate what you do and who you do it for before anyone reads a word. If a visitor could look at your hero image alone and have no idea what industry you are in, the image is not doing its job.

On your about page, the image needs to be personal. Show the people. Show the space. Show something that makes the business feel human and specific rather than corporate and anonymous.

On a service or product page, show the outcome. A before-and-after for a renovation business. A screenshot of the dashboard for a software tool. A photo of the finished dish for a catering company. Outcome images are more persuasive than process images because they answer the question a visitor is actually asking: what will I have when this is done?

Once you know the job, then you find the image. Not the other way around.

What makes an image work against you?

Irrelevance

An image that has nothing specific to say about your business, your service, or your client tells the visitor that no one thought carefully about the visual experience of the site. That impression sticks.

Mismatch

If your copy is warm and conversational but your images are cold and corporate, the page feels inconsistent. Visitors pick up on that dissonance even when they cannot name it. The image mood and the copy mood need to agree.

Slow load times

Large, uncompressed images are the single most common reason websites load slowly. A page that takes more than three seconds to load on a phone loses a significant chunk of its visitors before anything is seen. Every image you upload should be compressed for the web. Most website platforms handle some of this automatically, but it is worth knowing what you are uploading. See how website speed affects visitors and search rankings for the full picture.

Missing alt text

Every image on your site needs a short description of what it shows, written in the alt text field. This matters for two reasons. Visitors using screen readers rely on alt text to understand what an image contains. Search engines use alt text to index images. Skipping it is a quick way to lose both accessibility points and SEO value.

Where should images appear on your pages?

There is no universal rule for image placement, but there are a few patterns that consistently work.

Put your strongest image where visitors look first. On most pages that is the top section, above the fold. If a visitor scrolls down before they commit to reading, the second image slot, somewhere in the middle of the page, catches them mid-scroll. A third image near the bottom of a long page re-engages visitors who have read most of the way through.

Use images to break up long sections of text, but only when the image adds something. An image that illustrates the point being made in the paragraph next to it is doing a job. An image placed there just because the section felt too long is padding, and visitors can tell.

On mobile, image placement shifts because the screen is narrow and images stack vertically. An image that sits beside text on desktop will appear above or below it on mobile. Test how each page looks on a phone and make sure the image still makes sense in its new position. This is part of making sure your site follows responsive design principles across every page.

What file format should your images be?

The short version:

• JPEG for photographs. Small file size, high quality, works everywhere.
• PNG for logos, icons, and anything with a transparent background or sharp text.
• WebP for both, if your platform supports it. It produces smaller files than JPEG and PNG at the same quality level. Most modern browsers handle WebP without any issues.
• SVG for icons and simple illustrations. Scales perfectly to any size with tiny file sizes.

For file sizes, target under 200 kilobytes for standard page images. Hero images can go up to around 400 kilobytes. Anything larger needs compressing before you upload it. A five-megabyte photo from your phone has no place on a web page.

What is alt text and why does every image need it?

Alt text is a short written description attached to an image. It sits in the image tag on the page, invisible to sighted visitors but read by screen readers and search engines. Both need it to make sense of what your images contain.

For accessibility, alt text is how visitors using screen readers experience images on your site. Without it, those visitors hear nothing when the image loads, which leaves a gap in what you intended to communicate. For SEO, search engines cannot see images the way people do. Alt text is how they understand what an image shows and whether it is relevant to the page it supports.

Writing alt text well means describing what is actually in the image, specifically and plainly. A photo of a completed kitchen renovation gets alt text like "white shaker kitchen with marble countertops after renovation" rather than "kitchen photo" or "image1." If your keyword fits naturally into the description, include it. But write for the description first. Alt text that exists only to repeat keywords fails both purposes.

Every image you upload should have alt text written before the page goes live. It takes less than a minute per image and affects both who can access your content and how your pages rank.

How WEMASY handles images

WEMASY's website builder includes image blocks you can add to any page section. You upload directly within the builder, position and resize without touching code, and add alt text in the same step. Images are automatically served responsively, so they adjust to fit every screen size without you needing to create separate versions for desktop and mobile.

Page sections in WEMASY support images alongside text in flexible column layouts, or as full-width backgrounds for sections where a strong visual sets the tone. Either way, the image stays attached to the content it supports rather than floating loose from the layout.

See what is included at the WEMASY website builder or review plans on the pricing page.

Frequently asked questions about website images