How to Start A Business Course – Planning Your Business: Website Design Principle – Part 10/27
Master the web design principles that turn casual visitors into loyal customers — from clear calls to action and usability best practices to images and mobile design.
By S. Mitchell
How to Start a Business — Full Course Series
This lesson is part of our comprehensive How to Start a Business course. Each part builds practical knowledge you can apply directly to launching and growing your own venture.
Introduction to Web Design Principles
Welcome to Part 10 of our How to Start a Business course. Today, we're diving into one of the most powerful tools in your entrepreneurial toolkit: your website. A well-designed site can be the difference between a visitor becoming a loyal customer or clicking away to a competitor — sometimes within the blink of an eye. In this session, we'll explore the key principles of web design, including usability, image best practices, responsive design, and how to decide whether to build your site yourself or hire a professional.
Usability: Making Your Website Work for Everyone
Usability is simply how easy it is for someone to interact with your website. A usable site allows visitors to navigate intuitively, find what they need quickly, and complete actions without frustration. Think of it as the digital equivalent of a well-organised shop — everything is where you'd expect it to be, and the experience feels effortless.
Here's a striking fact: users form an opinion about your website within just 50 milliseconds. In that fraction of a second, they decide whether to stay or leave. With thousands of competing websites out there, you cannot afford to make a poor first impression.
Clear Calls to Action
One of the most critical usability elements on any website is a clear Call to Action (CTA). Your CTA tells visitors exactly what to do next — it removes guesswork and guides them through your site with confidence. Think of it like a GPS for your users: without clear directions, they'll get lost and leave.
Effective CTAs are short, direct, and action-oriented. Examples include:
- Add to Cart
- Get Started
- Contact Us Today
- Yes, Sign Me Up
- Buy Now
Each of these tells the user precisely what will happen when they click. The moment a visitor feels unsure about what to do on your site, you risk losing them — so make every step of their journey crystal clear.
Contact Information
Make your contact details easy to find and easy to read. Not every visitor is comfortable with live chat boxes or contact forms — particularly older customers who may simply prefer to pick up the phone. Displaying clear contact information builds trust and signals that your business is legitimate and accessible.
Visited Link Colours
It may seem like a small detail, but ensuring that visited links change colour is an important usability practice. It helps users track where they've already been on your site, preventing them from accidentally revisiting the same pages and making their overall journey more efficient.
Keep Your Content Valuable
Never post content just for the sake of it. Every page, blog post, or update on your site should offer genuine value to your visitors. Ask yourself these questions regularly:
- Is my site achieving its intended goal?
- Is it immediately clear what this website is about?
- Am I protecting my users' data and confidential information?
- How quickly can a first-time visitor complete a key task?
- Is my website memorable for the right reasons?
What Your Customers Need to See
Before a visitor becomes a customer, they need answers to some fundamental questions. Make sure your website clearly communicates the following:
- Pricing: Display the cost of your products or services upfront. If you serve international customers, consider including a currency converter.
- Privacy Policy: Be transparent about how you collect, store, and use customer data — and make it clear you will never share their information without consent.
- Your Unique Value: Tell visitors why they should choose you over the competition. Are you eco-friendly? Family-run? Award-winning? Use this space to let your personality and values shine.
Common Reasons Visitors Leave a Website
Understanding what drives people away is just as important as knowing what keeps them. Watch out for these common mistakes:
- A cluttered homepage overloaded with flashing ads
- An outdated or unprofessional design
- Fonts that are difficult to read
- Autoplaying videos that interrupt the experience
- False or misleading advertising where the product doesn't match its description
Image Guidelines: First Impressions Count
The images you choose for your website say a great deal about your brand. Poor image choices are one of the most common web design mistakes — but they're also completely avoidable. Keep these guidelines in mind:
- Avoid generic stock photos: Overly staged or irrelevant stock images can feel inauthentic. Choose visuals that genuinely reflect your brand and connect with your audience.
- Never use watermarked images: Using images with visible watermarks looks unprofessional and raises questions about your credibility.
- Check your load times: Large image files can significantly slow down your website. Refresh your pages regularly to test load speed, and compress images where needed.
Common Usability Mistakes to Avoid
Even well-intentioned websites can fall into these traps. Here are some of the most frequent usability issues to watch for:
- Slow load times: Oversized images or unoptimised code can cause pages to load slowly, frustrating visitors and damaging your search engine ranking.
- Poor navigation: Too many menu options or unclear page structures leave visitors feeling overwhelmed and directionless.
- Mobile incompatibility: With the majority of web traffic now coming from smartphones, a site that doesn't display correctly on mobile devices will lose a huge proportion of potential customers.
Key Takeaways
- Usability is the foundation of great web design — your site should be intuitive, efficient, and easy to navigate for every visitor.
- Users decide whether to stay on your website within just 50 milliseconds, making first impressions absolutely critical.
- Clear, action-driven CTAs guide visitors through your site and dramatically improve conversion rates.
- Transparency around pricing, privacy, and your unique value proposition builds trust and keeps customers engaged.
- Image quality, load speed, and mobile compatibility are non-negotiable elements of a professional website.
- Every piece of content on your site should serve a purpose — never post just to fill space.
Your Action Steps
- Review every page of your website today and identify whether each one has a clear, visible Call to Action — update any page that lacks one.
- Test your website on a smartphone and tablet to check that it displays correctly on mobile devices; flag any layout or navigation issues for immediate attention.
- Run your site through a free tool such as Google PageSpeed Insights to identify slow-loading images or pages, and compress or replace any files that are slowing you down.
- Write down three compelling reasons why a customer should choose your business over a competitor, and make sure at least one of these is prominently featured on your homepage.
- Check that your contact information is easy to find on every page, and confirm that your privacy policy is current, accurate, and clearly linked in your site footer.