A business website is no longer just an online brochure.
In 2026, your website can be your main sales platform, customer-service hub, booking system, resource centre, lead-generation tool and brand experience. It is often the first place someone discovers your business, compares your offer and decides whether they trust you enough to take the next step.
This guide explains what web design and web development are, how they work together, which website platforms businesses commonly use, and how to plan a professional website project.
If you are planning a new website, redesign or digital product, Nertia can help with website design and development built around clarity, performance, SEO and long-term growth.
TLDR: What are web design and web development?
Web design is the process of planning how a website looks, feels and guides visitors. It covers layout, branding, typography, colours, navigation, user experience, accessibility and calls to action.
Web development is the process of building the website and making it work. It covers code, content management systems, forms, databases, integrations, ecommerce, performance, analytics and technical setup.
In simple terms, web design defines the experience. Web development turns that experience into a working website.
A strong website needs both. A site can look impressive but still fail if it loads slowly, has confusing navigation, weak copy or broken forms. Equally, a technically strong website can underperform if the design does not clearly explain the offer or guide users towards action.
Why web design and development matter in 2026
People now expect websites to be fast, clear, mobile-friendly and useful. Search engines also need content to be structured properly, while AI search tools and answer engines need pages that are easy to interpret.
A good modern website should help users quickly understand:
- Who your business is
- What you offer
- Who your services are for
- Why you can be trusted
- What action they should take next
- How to contact you or continue learning
This is why SEO, AEO and GEO now matter together.
SEO, or Search Engine Optimisation, helps search engines understand and rank your pages.
AEO, or Answer Engine Optimisation, helps your content answer specific questions clearly for featured snippets, voice search and AI-assisted search.
GEO, or Generative Engine Optimisation, helps generative AI tools understand your brand, services, expertise and content structure.
A website that supports all three should use clear headings, helpful answers, strong internal links, structured content, fast performance and trustworthy information.
You can check your own website with Nertia’s free SEO, AEO and GEO Website Scan Tool.
What does web design include?
Web design is about more than making a website look attractive. It shapes how users move through the site and how easily they can make a decision.
A web designer may work on:
- Website strategy
- Sitemap planning
- User journeys
- Wireframes
- Visual layouts
- Brand application
- Colour palettes
- Typography
- Image direction
- Buttons and forms
- Mobile layouts
- Accessibility
- Conversion paths
- Interactive prototypes
Many teams use Figma to create wireframes, design systems and interactive prototypes before development begins. This makes it easier to review layouts, test ideas and align the design before building the live website.
UX design
UX design focuses on how easy and useful the website feels. It considers whether visitors can find information, understand the offer and complete their goal without confusion.
Good UX answers questions such as:
- Is the navigation easy to follow?
- Is the page structure logical?
- Are the calls to action clear?
- Is the form too long?
- Does the website work well on mobile?
- Can users find key information quickly?
For a deeper explanation, read Nertia’s guide: What Is UI and UX? A Simple Guide for Businesses.
UI design
UI design focuses on the visible elements people interact with. This includes buttons, menus, forms, cards, search bars, filters, sliders, tabs and chatbot launchers.
A strong interface should feel consistent across the website. Buttons should look like buttons, forms should be easy to complete, and important actions should be obvious.
Responsive design
Responsive design makes sure a website works across desktop, laptop, tablet and mobile devices.
A responsive website may adjust:
- Section widths
- Column layouts
- Font sizes
- Image sizes
- Menu behaviour
- Button placement
- Form layouts
- Spacing
Responsive behaviour should be planned from the start, not treated as a final fix.
Accessible design
Accessible design makes websites easier to use for people with different visual, physical, hearing, cognitive and neurological needs.
This can include:
- Clear heading structure
- Strong colour contrast
- Descriptive link text
- Keyboard navigation
- Visible focus states
- Alternative text for useful images
- Clear form labels
- Understandable error messages
- Large enough touch targets
The Web Content Accessibility Guidelines are a useful reference for accessibility standards. Accessibility also improves usability for many users, not only those with recognised disabilities.
What does web development include?
Web development turns the website plan and design into a functional website.
Development can include:
- Building page templates
- Creating responsive layouts
- Setting up a CMS
- Connecting forms
- Adding animations
- Creating user accounts
- Building databases
- Connecting payment systems
- Integrating booking tools
- Improving speed
- Setting up analytics
- Configuring SEO settings
- Adding security measures
- Connecting third-party platforms
A five-page service website may need relatively simple development. A SaaS platform, ecommerce store, marketplace or customer portal may need custom back-end systems, user permissions, databases and integrations.
Front-end, back-end and full-stack development
Front-end development
Front-end development controls the visible part of the website that users interact with. It includes layouts, menus, buttons, forms, animations and responsive behaviour.
Common front-end technologies include HTML, CSS and JavaScript. Some projects also use frameworks or libraries such as React to build reusable user interface components.
Back-end development
Back-end development manages the systems behind the website. This can include databases, authentication, account permissions, order processing, email notifications, APIs and business-system integrations.
For example, when a user submits a form, the front end displays the form. The back end processes the data, sends notifications, stores the enquiry or connects it to another system.
Full-stack development
Full-stack development covers both front-end and back-end work. A full-stack developer can work across the user-facing website and the systems that support it.
Complex projects may still need specialists in security, infrastructure, databases, ecommerce, performance or accessibility.
Web design vs web development
| Area | Web design | Web development |
|---|---|---|
| Main focus | Experience, layout and visual direction | Functionality and technical build |
| Typical output | Wireframes, designs and prototypes | Working pages and features |
| Common tools | Figma and design systems | CMS platforms, code editors and frameworks |
| Mobile work | Plans responsive layouts | Builds responsive behaviour |
| Forms | Designs the user experience | Connects submission and processing |
| Content | Plans hierarchy and structure | Configures CMS fields and templates |
| Testing | Reviews usability and visual issues | Tests functionality, speed and integrations |
Web design decides what the user should experience. Web development makes that experience work in a browser.
Which website platform should you use?
There is no single best website platform for every business. The right choice depends on your goals, content, budget, ecommerce needs, internal skills, integrations and future plans.
WordPress
WordPress is commonly used for service-business websites, blogs, resource hubs, location pages, membership sites and flexible content websites.
It can be a strong choice when a business needs regular content updates, SEO-focused pages, blog publishing and flexible page structures. It can also support ecommerce through additional tools.
WordPress works best when it is properly planned, hosted, secured and maintained. Poor hosting, too many plugins or weak build quality can make a site slow or difficult to manage.
Webflow
Webflow is a visual website platform often used for marketing websites, SaaS websites, startup sites, landing pages and design-led brands.
It gives teams strong visual control, managed hosting and content-management features. It can be useful when the priority is a polished marketing site with clean layouts and a controlled editing experience.
Businesses should check CMS limits, pricing, editor learning curve, ecommerce needs and migration requirements before choosing it.
Framer
Framer is often used for landing pages, startup websites, portfolios, product websites and modern marketing sites.
It is useful for fast visual creation, animations and design-led publishing. It may be less suitable for larger content-heavy websites, complex ecommerce or custom back-end functionality.
Wix
Wix can suit small businesses that want a managed website builder with templates, hosting, visual editing, forms, booking tools and ecommerce options.
It may be suitable for businesses that want a simple all-in-one setup, but it is important to consider long-term flexibility, portability, design control and customisation needs.
Shopify
Shopify is built for ecommerce businesses. It includes product management, checkout, payments, order processing, customer accounts, discount tools, reporting and ecommerce apps.
It is a strong choice for online shops that want a commerce-focused platform. Businesses should consider transaction costs, app costs, custom product requirements, theme flexibility and fulfilment integrations.
Custom development
Custom development is suitable when an existing platform cannot support the required functionality.
This may apply to:
- SaaS platforms
- Customer portals
- Marketplaces
- Complex dashboards
- Bespoke booking systems
- Advanced calculators
- Custom workflows
- Data-heavy applications
- Proprietary integrations
Frameworks such as Next.js are often used for more tailored web applications, especially when a business needs strong performance, flexibility and custom functionality.
Custom development gives more control, but it usually requires clearer planning, higher investment, testing, maintenance and technical support.
Website platforms compared
| Platform | Best suited to | Main advantage | Main limitation |
|---|---|---|---|
| WordPress | Service, content and SEO-focused websites | Flexible content management | Needs maintenance |
| Webflow | Marketing and design-led websites | Strong visual control | Platform limits |
| Framer | Landing pages and startup websites | Fast visual publishing | Less suitable for complex sites |
| Wix | Simple small-business websites | Easy managed setup | Less portable |
| Shopify | Ecommerce stores | Built-in commerce tools | Custom requirements can cost more |
| Custom development | SaaS, portals and complex workflows | Maximum flexibility | Higher planning and support needs |
The platform should be chosen after the requirements are understood, not before.
What is the professional website design process?
A professional website project usually follows seven stages.
1. Discovery
Discovery defines the website’s goals, audience, services, competitors, functionality, content needs and conversion actions.
This stage should answer:
- What should the website achieve?
- Who is it for?
- What pages are needed?
- What actions should users take?
- What platform is suitable?
- What integrations are required?
- What does success look like?
2. Sitemap and content planning
The sitemap defines the structure of the website. This may include a homepage, service pages, product pages, location pages, blog posts, case studies, FAQs, legal pages and contact pages.
The structure should help both users and search engines understand how pages connect.
3. Wireframing
Wireframes are simple page layouts that focus on structure before final design. They show where headings, text, images, forms, buttons and calls to action should sit.
Wireframing helps identify issues early, before detailed visual design or development begins.
4. Visual design
Visual design applies your brand identity to the approved structure. This includes colours, typography, spacing, cards, buttons, images, icons, backgrounds and responsive layouts.
The design should be reviewed on desktop and mobile.
5. Development
Development turns the designs into working pages. This may include templates, CMS setup, animations, forms, integrations, ecommerce features, analytics and technical SEO settings.
6. Testing
Testing should cover:
- Links
- Forms
- Mobile responsiveness
- Browser compatibility
- Page speed
- Accessibility
- Metadata
- Analytics
- Redirects
- Sitemap setup
- Cookie controls
- Third-party integrations
Tools such as Google PageSpeed Insights can help review performance. Google’s Core Web Vitals focus on real user experience signals such as loading performance, interactivity and visual stability.
7. Launch and improvement
Launch should not be the end of the project. After launch, businesses should continue reviewing search visibility, enquiries, user behaviour, popular pages, technical performance and content accuracy.
A website should improve over time based on real data.
What should a business prepare before starting a website project?
Before starting, prepare:
- A clear business goal
- Main services or products
- Target audience information
- Brand assets
- Existing website access
- Domain and hosting details
- Example websites you like
- Competitor websites
- Required forms or booking tools
- Required integrations
- Images, videos or case studies
- Legal pages
- Budget range
- Ideal launch date
The clearer the brief, the easier it is to design and build a website that supports the business properly.
How much does a website cost?
Website costs vary because every project has different requirements.
The price may depend on:
- Number of pages
- Design complexity
- Copywriting
- CMS setup
- Ecommerce functionality
- Booking or payment tools
- Custom development
- User accounts
- Integrations
- SEO setup
- Accessibility requirements
- Testing
- Hosting and maintenance
- Ongoing support
A simple brochure website will usually cost less than a custom ecommerce store, SaaS platform or customer portal.
Rather than choosing only on price, compare what is included. A cheaper website may become more expensive later if it needs rebuilding, fixing or reworking for SEO and performance.
What should a website quote include?
A clear website quotation should explain:
- Project scope
- Number of pages or templates
- Strategy work
- Design work
- Development work
- CMS setup
- Content responsibilities
- Integrations
- Revisions
- Testing
- SEO setup
- Analytics setup
- Hosting
- Maintenance
- Timeline
- Payment schedule
- Exclusions
- Ownership
Unclear quotations make it difficult to compare providers properly.
How to choose a web design and development company
The right web design and development company should understand more than visual appearance.
Ask whether they can explain how the website will support:
- Usability
- Accessibility
- Conversions
- Search visibility
- Mobile users
- Page speed
- Long-term growth
- Content management
- Future integrations
Review their process, not only their portfolio. A good process should cover discovery, sitemap planning, content, wireframes, design, development, testing, launch and ongoing support.
You should also ask who owns the website, designs, content, domain, hosting account and custom code after the project is complete.
Nertia combines UI/UX design, website development, SEO-friendly structure and automation thinking to help businesses build websites that are clear, professional and ready for growth. Learn more about Nertia’s website design and development services.
SEO, AEO and GEO website checklist
Use this checklist when reviewing your website:
- Does every important page have one clear purpose?
- Is the main heading specific?
- Are services explained in plain language?
- Are questions answered directly?
- Is the page structure easy to scan?
- Are internal links used naturally?
- Are external references relevant and trustworthy?
- Is the website fast on mobile?
- Are images compressed and named clearly?
- Are forms easy to complete?
- Are calls to action visible?
- Is schema markup used where useful?
- Are FAQs included on key pages?
- Is the sitemap submitted?
- Are analytics and Search Console connected?
- Can AI tools understand what the business does?
For a quick technical review, run your website through the free Nertia SEO, AEO and GEO Website Scan Tool.
Frequently asked questions
What is web design?
Web design is the process of planning how a website looks, feels and guides users. It includes layout, branding, typography, colours, user experience, accessibility and calls to action.
What is web development?
Web development is the process of building the website and making it function. It includes page templates, code, CMS setup, forms, integrations, ecommerce, performance and technical configuration.
What is the difference between web design and web development?
Web design focuses on the user experience and visual structure. Web development turns that structure into a working website.
Do web designers need to code?
Not always. Many web designers create wireframes, layouts and prototypes without coding. However, understanding how websites are built can help designers make more practical and effective decisions.
Can you build a professional website without coding?
Yes, many professional websites can be built using CMS, no-code or low-code platforms. The quality still depends on strategy, content, design, platform choice and implementation.
What is the best website platform?
There is no single best platform for every business. WordPress, Webflow, Framer, Wix, Shopify and custom development all suit different needs.
Is WordPress good for SEO?
WordPress can be very effective for SEO when it is properly planned, structured, hosted and maintained. It is commonly used for blogs, service pages, location pages and resource hubs.
Is Shopify only for ecommerce?
Shopify is primarily built for ecommerce. It is best suited to businesses that sell products online and need product management, checkout, payments and order tools.
What makes a website SEO-friendly?
An SEO-friendly website has clear page structure, useful content, fast loading, mobile-friendly layouts, optimised metadata, internal links, clean URLs and technical search settings.
What makes a website AEO-friendly?
An AEO-friendly website answers specific questions clearly. It uses short answer sections, FAQ content, descriptive headings and structured information that answer engines can easily understand.
What makes a website GEO-friendly?
A GEO-friendly website makes your brand, services, expertise and content easy for generative AI tools to interpret. Clear entity information, helpful content, internal links and consistent service descriptions all help.
How can Nertia help?
Nertia helps businesses plan, design and build websites that are clear, professional, responsive and structured for SEO, AEO and GEO. We can also support wider digital tools, including AI chatbots and digital twins.
Build a website that supports your business
A strong website should do more than look good. It should explain your offer clearly, guide visitors towards action, support search visibility and give your business room to grow.
Whether you need a new website, a redesign, a landing page, a CMS build or a more bespoke digital platform, Nertia can help you plan and build the right solution.
Explore Nertia’s website design and development services, run a free SEO, AEO and GEO website scan, or contact the Nertia team to discuss your project.