Most websites are full of images. Most of those images were never chosen with a purpose. They were picked because a stock library looked cheerful, because the designer needed to fill a gap, or because a product photo was handy. And some of them are quietly costing you sales, enquiries and sign-ups every single day. This article walks through how to spot the images that hurt your conversion rates, why they hurt, and what to put in their place.
How images can put visitors off without you noticing
People make snap judgements about websites. When a visitor lands on a page, the images do most of the talking before a single word has been read. A photo sets the tone: professional or amateur, trustworthy or questionable, relevant or completely generic. If the image says the wrong thing, the visitor bounces and you never find out why.
The usual suspects are easy to recognise once you look for them. Stock photos of people shaking hands, pointing at whiteboards or laughing in meeting rooms appear on thousands of UK business sites. Visitors have learned to tune them out, and worse, they can make a small business look like it has something to hide — as if there was no real team, no real premises and no real work to photograph.
Product images cause a different kind of damage. A single small photo with no zoom, no alternate angle and no context forces the customer to guess. Guessing customers do not buy; they move on to a competitor whose listing they can actually inspect.
Slow-loading images are a conversion problem too
Large, unoptimised images are one of the most common reasons UK business sites load slowly, especially on mobile connections. If a page takes several seconds to appear, a share of your visitors will leave before seeing anything at all. Those lost visits never show up as a problem with your offer or pricing — they just quietly vanish from your analytics.
The fix is straightforward but rarely done properly: serve images at the dimensions they are actually displayed at, compress them sensibly, and use modern formats such as WebP or AVIF with sensible fallbacks. Lazy-loading images below the fold helps as well. Our conversion rate optimisation work almost always starts with a speed audit, because slow media is the single most common preventable leak.
If you are not sure where you stand, open your own site on a mid-range phone over a normal mobile connection and watch it load. If you find yourself waiting, so do your customers.
The images most likely to be hurting you
Here is a short checklist of the image mistakes we see most often on UK business websites:
- Irrelevant hero images. A full-width banner that shows nothing connected to the service you sell wastes your strongest piece of screen space.
- Faceless businesses. No photos of real staff, real work, or real premises makes trust harder than it needs to be, particularly for local service firms.
- Weak product photography. Dark, blurry or cluttered product shots, or a single angle where competitors show five, lose the comparison.
- Text baked into images. Offers, prices and headlines trapped inside graphics cannot be read by search engines, screen readers or translation tools, and they turn to mush on small screens.
- Clashing carousels. Auto-rotating sliders that visitors ignore, and that push your main message through three or four conflicting claims.
None of these are design taste issues. Each one measurably changes what a visitor understands and whether they act.
What good conversion imagery looks like
The best-performing images share a few traits. They show the actual product, the actual people, or the actual outcome. A plumber's site converts better with photos of completed bathrooms and the engineer on the job than with a smiling stock couple. A software firm's pricing page does better with screenshots of the real product than with abstract network graphics.
Context matters as much as quality. Lifestyle context — the product shown being used, in a real setting — consistently outperforms bare cut-outs for considered purchases, because it helps the buyer picture ownership. Real customer results, with permission, do the same job for services.
Finally, every image near a call to action should support that action rather than compete with it. If the photo next to your "Request a quote" button shows nothing to do with the quote, it is decoration at best and a distraction at worst.
A practical image audit you can do this week
You do not need a redesign to start. Pick your five highest-traffic pages and ask these questions about every image on them:
- What is this image telling the visitor, and is it true?
- Could a real photo of our work, team or product replace it?
- Does it load fast enough on a phone?
- Does it support the call to action, or fight it?
Replace the worst offenders first. Then measure. Small image changes are ideal for simple before-and-after comparison because they are cheap to test and quick to reverse.
If you would like a second pair of eyes, get in touch — we audit websites against exactly this kind of issue and report what is actually costing you. For more on how small design choices shape behaviour, see our piece on web design mistakes that kill conversions.
Real photos versus stock: a practical decision rule
When budgets are tight, a full professional shoot is not always possible. Here is the decision rule we recommend: use real photography wherever the image is doing trust work — about pages, team pages, case studies, testimonials, and anywhere near a purchase or enquiry decision. Use stock (carefully chosen, properly licensed) for editorial and blog content where the image is illustrative rather than evidential.
If a full shoot is out of reach, a halfway house works surprisingly well. A decent smartphone, good daylight, and a tidy background produce perfectly usable photos of your premises, your team at work, and finished jobs. Authentic and slightly imperfect beats polished and fake — customers can tell the difference, and they reward the real thing.
Whatever you use, keep a simple image library with consistent naming and licensing records. Nothing derails a redesign like discovering your "free" images were never licensed, or that nobody knows which photos are current. Ten minutes of organisation now saves hours later.
FAQs
Can images really affect conversion rates that much?
Yes. Images shape first impressions, communicate trust, and directly affect page speed — all of which influence whether someone stays, engages and buys. They rarely act alone, but they are one of the easiest variables to improve.
Is stock photography always bad?
No, but it should be a last resort rather than the default. Well-chosen stock can work for editorial or blog content. For service pages, pricing pages and about pages, real photography of your people, work and premises almost always performs better.
How many images should a landing page have?
There is no magic number. Use as many as each one earns its place: every image should inform, reassure or guide the visitor toward the next step. Fewer, better images beat a gallery of filler.
Will compressing images make them look worse?
Not if done properly. Modern formats and sensible compression settings remove file size without visibly affecting quality. The images you see on fast, professional sites are heavily optimised — you just cannot tell.
