Why Website UX Best Practices Determine Whether Your Site Wins or Loses
Website UX best practices are the proven design and content principles that help visitors accomplish their goals quickly, comfortably, and without frustration.
Here are the core best practices at a glance:
- Follow familiar design patterns – Don’t make users relearn how websites work
- Design for scanning, not reading – Users read only 20-28% of words on a page
- Make it mobile-first – Over 52% of all web traffic comes from mobile devices
- Keep navigation clear and consistent – Menus, breadcrumbs, and labels should be predictable
- Minimize form fields – Most checkout forms can be reduced by 20-60%
- Ensure accessibility – Keyboard navigation, color contrast, and screen reader support benefit everyone
- Test and iterate – Use A/B testing, heatmaps, and real user feedback to improve continuously
- Optimize page speed – Slow loading kills conversions before users even see your content
- Write clear microcopy – Button labels, error messages, and headings should be instantly understood
- Use visual hierarchy – Guide the eye to what matters most using size, spacing, and contrast
Most business owners know when a website feels broken. The navigation is confusing. The checkout is painful. The page takes forever to load. Users leave — and they don’t come back.
What’s less obvious is why it happens. Poor UX isn’t usually one big mistake. It’s a dozen small ones stacking up. A placeholder where a label should be. A carousel that auto-advances before users can read it. A mobile menu that’s nearly impossible to tap.
The cost is real. Studies show 63% of mobile users have abandoned a site due to preventable usability issues. Eighteen percent of shoppers bail on orders because checkout is too complicated. These aren’t edge cases — they’re patterns happening on millions of websites right now.
The good news? Most of these problems are fixable once you know what to look for.
I’m Ron Vernon, CEO of ELMNTL, a strategic marketing agency specializing in digital experiences and brand strategy — and applying website UX best practices has been central to how we help brands turn underperforming websites into high-converting digital assets. In the guide below, I’ll walk you through the key principles and actionable fixes our team uses every day.
Core Principles of Website UX Best Practices
When we talk about website ux best practices, we aren’t just talking about making things look “pretty.” We are talking about cognitive psychology and how the human brain processes information. At ELMNTL, we believe that great design is invisible; it simply allows the user to get what they need without thinking about the interface itself.
One of the most vital concepts in UX is Jakob’s Law. Named after usability expert Jakob Nielsen, it states that users spend most of their time on other websites. This means they expect your site to work exactly like the ones they already know. If you put your search bar in the bottom left corner just to be “edgy,” you aren’t being innovative—you’re being annoying.
Another core principle is the aesthetic-usability effect. Research shows that users perceive more attractive designs as actually being more usable. While beauty isn’t everything, a polished, professional look builds immediate “visual trust.” However, that trust evaporates the moment a button doesn’t work or a link is broken.
To dive deeper into the foundational elements, we recommend reading The Ultimate Guide to Crafting an Intuitive and Engaging Website User Experience. This guide explores how to balance aesthetics with the functional requirements that keep users engaged.
Finally, we must respect the user’s cognitive load. Every extra choice, every unorganized list, and every flashing banner adds mental weight. Our goal is to minimize that load by following Website Usability Best Practices (Backed By Research), which emphasizes simplicity and clarity over flashy, unnecessary features.
Accessibility as a Foundation for Website UX Best Practices
Accessibility is not a “nice-to-have” feature or a legal checkbox; it is a fundamental human right in the digital age. Globally, over 1 billion people live with some form of disability. If your website isn’t accessible, you are effectively locking your front door to 15% of the world’s population.
Universal design means creating a site that works for everyone, regardless of their physical or cognitive abilities. This includes:
- Visual Impairments: The WHO estimates there are 217 million people with moderate to severe vision impairment. We must ensure high color contrast and support for screen readers.
- Color Blindness: About 8% of men are colorblind. We should never rely on color alone to convey meaning (e.g., using only a red border for an error without an icon or text).
- Motor Impairments: Many users navigate using only a keyboard. If your menus don’t work with the “Tab” key, those users are stuck.
To make sure you haven’t missed anything, we suggest using this handy accessibility checklist. Following WCAG standards ensures that your site is inclusive and legally compliant, especially with the upcoming European Accessibility Act (EAA) enforcement in 2025.
The Role of Consistency in Interface Design
Consistency is the glue that holds a user experience together. It builds brand trust and makes navigation feel intuitive. If your “Submit” buttons are blue on the homepage but orange on the contact page, users will pause. That pause is a moment of doubt.
We categorize consistency into three main buckets:
- Visual Consistency: Using the same fonts, colors, and icon styles throughout the site.
- Functional Consistency: Ensuring that interactive elements (like dropdowns) behave the same way every time they are used.
- External Consistency: Following the design patterns users expect from the rest of the web (like a logo that links back to the homepage).
Consistency is also a key part of branding. You can learn more about this in our article on The Role of Branding in Website Design: Creating an Irresistible Online Identity. By using a unified design system, we reduce the time users spend “learning” your site and increase the time they spend interacting with your content.
Streamlining Navigation and Content Scannability
Navigation is the roadmap of your website. If the map is confusing, users will get lost and leave. We use the concept of information scent—the idea that users follow “cues” (like labels and icons) to find what they need. If the scent is strong and clear, they stay. If it’s weak or misleading, they bounce.
A great website doesn’t just happen; it is built on 4 Qualities of a Great Website, with intuitive navigation being at the top of the list. We often hear about the “3-click rule”—the myth that users will leave if they can’t find what they need in three clicks. Research has shown this isn’t strictly true; users don’t mind extra clicks as long as each click feels like it’s taking them closer to their goal.
To improve navigation, we recommend:
- Sticky Headers: Keep the menu visible as users scroll.
- Breadcrumbs: Help users understand where they are in the site hierarchy.
- Mega Menus: For large sites, use categorized menus that show options at a glance, rather than hiding them in deep sub-menus.
Enhancing Search and Information Architecture
For many users, the search bar is the first place they go. Yet, 61% of e-commerce sites have search functions that don’t match user expectations. If someone searches for “red summer dress,” they shouldn’t just get a list of everything red. They need relevant, filtered results.
Understanding the difference between filters and facets is crucial for a smooth experience:
| Feature | Purpose | Best Use Case |
|---|---|---|
| Filters | Broadly narrow down a large set of data. | Selecting a category like “Shoes” or “Clothing.” |
| Facets | Allow users to select multiple attributes at once. | Choosing “Size 10,” “Blue,” and “Under $50” simultaneously. |
Effective search also requires autocomplete suggestions and “no-results” pages that actually help (e.g., suggesting related products instead of just saying “Sorry, nothing found”). For more on this, check out our Tips for Optimizing Your Website for Conversions.
Formatting Content for the Modern Scanner
Here is a hard truth for writers: people don’t read your website. They scan it. On average, users read only 20-28% of the words on a page. If you present them with a “wall of text,” they will skip it entirely.
Eyetracking studies have identified two major scanning patterns:
- The F-Shaped Pattern: Users read the top heading, then a bit of the second line, then scan down the left side.
- The Layer-Cake Pattern: Users scan headings and subheadings, skipping the body text until they find a section that interests them.
To design for these behaviors, we use chunking—breaking information into small, manageable pieces. Use the “Inverted Pyramid” style of writing: put the most important information at the very top, followed by supporting details. Lots of white space, bulleted lists, and clear typography make this scannability possible.
Optimizing Forms and Mobile-First Interactions
Forms are often the final hurdle between a visitor and a conversion. Unfortunately, they are also where most UX friction occurs. The average checkout form has 11.8 fields, but most sites can reduce that by 20-60%.
Every extra field you ask a user to fill out increases the chance they will quit. In fact, 18% of users abandon orders specifically because the checkout process was too complicated.
To fix your forms, we recommend:
- Single-Column Layouts: These are easier for the eye to follow than multi-column forms.
- Inline Validation: Show a green checkmark or a red error message as the user types, rather than making them wait until they hit “Submit.”
- Avoid Placeholders: Don’t put the label inside the box. It disappears when the user starts typing, making them forget what they were supposed to enter. Use persistent labels above the field instead.
- Progress Indicators: If a form has multiple steps, show the user how far they’ve come.
Mobile-First Strategies for Website UX Best Practices
With over 52% of all internet traffic coming from mobile devices, “mobile-friendly” isn’t enough anymore. We must design with a mobile-first mindset. This means starting with the smallest screen and scaling up, rather than trying to cram a desktop site into a phone screen.
Key mobile considerations include:
- Tap Targets: Buttons should be at least 7mm x 7mm with plenty of space around them to avoid “fat-finger” errors.
- The Thumb Zone: Place important navigation and buttons where they are easy to reach with a thumb.
- Pinch-to-Zoom: Never disable this on product images; users need to see the details.
- Performance: Mobile users are often on slower connections. Speed is a feature!
If you are planning a site update, our The Ultimate SEO Website Redesign Checklist covers how to maintain your search rankings while improving your mobile experience.
Avoiding Common Interactive Pitfalls
Sometimes, the things we think are “cool” are actually the most frustrating for users. We see these mistakes all the time:
- Carousels/Sliders: Most users ignore them. If you have critical information, don’t hide it in the third slide of a carousel that auto-advances.
- Accordions: These are great for mobile to save space, but they can be problematic on desktop if they hide information the user needs to see all at once.
- Modals and Popups: These are the “interrupting cows” of the internet. If you must use them, time them carefully and make them incredibly easy to close.
- Layout Stability: Have you ever tried to click a link, only for the page to jump and make you click an ad instead? This is called Cumulative Layout Shift (CLS), and it’s a major UX (and SEO) no-no.
To keep things fast and stable, we suggest using modern image formats like WebP Image Optimization to reduce file sizes without losing quality.
Frequently Asked Questions about Website UX
Why is website UX important for business success?
Good UX directly impacts your bottom line. It increases conversion rates, reduces customer support costs (because users can find answers themselves), and builds brand loyalty. A site that is easy to use creates a “halo effect”—users assume that if your website is high-quality, your products or services must be too.
How do eyetracking studies inform page layout?
Eyetracking shows us exactly where users look. We know they ignore “right-rail” content (the sidebar) and banners that look like ads (banner blindness). We also know they spend most of their time “above the fold.” This data tells us to put our most important value propositions and CTAs in the top-left or center of the page.
What are the most common e-commerce UX pitfalls?
The biggest killers are hidden costs (like shipping) revealed only at the end, requiring users to create an account before they can buy, and poor filtering that makes it impossible to find a specific product. Providing a “Guest Checkout” option and being transparent about costs early on can significantly lift your sales.
Conclusion
At the end of the day, website ux best practices are about empathy. It’s about putting ourselves in our users’ shoes and asking, “How can I make this easier?”
UX is not a one-and-done project. It is an iterative process. We use A/B testing, heatmaps, and performance metrics to see what’s working and what’s not. The digital world moves fast, and user expectations are always rising. Whether it’s through a site audit or a full redesign, staying on top of these principles is what separates the winners from the “also-rans.”
If your website is currently annoying your users (or you’re just not sure), we can help. At ELMNTL, we’ve spent over 15 years perfecting the art of the user journey. Discover our full range of digital services and let’s build something your customers will actually love to use.