How web design and SEO work together

A good website needs to be easy to find as well as easy to use. Design affects how visitors navigate it and how search engines understand its pages.

Topics: web design in Granada, local SEO, keyword research, WordPress and site performance.

Illustration of a woman viewing search results and ratings

Illustration of three people working on a website’s SEO

What is SEO?

Search engine optimisation (SEO) improves a website’s visibility in unpaid search results. Content, structure and technical performance all matter, and design affects each of them.

On-page and off-page SEO

On-page SEO

covers the work you do on the site, such as improving content, navigation, HTML and performance.

Off-page SEO

includes links and references from other sites. Social media can help people discover your content.

Clear design supports on-page SEO and makes useful material easier for other people to share.

Why SEO matters

People often choose from the results they see first.Your visibility depends on the query, the competition and the results Google displays.The aim is to appear when people look for something your business can help with.

A site can be attractive and still be hard to discover if search engines cannot understand who it serves or what it offers.

That makes SEO an important part of the website, particularly when people rely on search to find your services.

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What can SEO help you achieve?

More visits from unpaid search

People arriving through search are often looking for a particular answer, product or service. Useful pages can give them a reason to continue.

Greater visibility for your brand

Appearing consistently for relevant queries makes it easier for people to discover and recognise your brand.

Less reliance on paid advertising

Ads stop appearing when the campaign ends. Traffic from unpaid search can continue if your pages remain useful and discoverable, which may reduce the cost of acquiring customers over time.

Help visitors judge whether you can meet their needs

Clear results and useful landing pages tell people what you offer before they decide whether to get in touch.

More chances to turn visits into enquiries or sales

SEO helps you attract people who are looking for what you offer. Give them a clear next step on the page, such as buying, subscribing, getting in touch or downloading a guide.

Where to start
Design the site around what visitors need

Illustration of a person on a ladder arranging website elements

Start with a site structure that supports SEO. Make it straightforward to find, read and use the content on any device.

Consider:

Information architecture.
Loading performance.
Mobile usability.
How related pages are organised.
Appropriate HTML and metadata.

In practice, design decisions can support SEOby making the site easier to use and understand.

Discover our web design service

Loading performance

A site’s loading performance affects the user experience. Google’s Core Web Vitalsmeasure aspects of loading, responsiveness and visual stability.

Visitors are more likely to leave when a page is slow or unresponsive.A faster page makes it easier to browse, complete a form or finish a purchase.

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Why does speed matter?

Good page experience includesloading performance, responsiveness and visual stability.
Help search engines crawl the siteA slow or unreliable server can make it harder for a crawler to fetch pages.
Make it easier to complete tasksFast pages can reduce friction on phones and other devices.

How to improve the loading speed of your site

Compress and optimise images

Images often account for much of a page’s size. A format such as WebPcan reduce file size. Serve appropriately sized images and include width and height attributes so the browser can reserve space and minimise layout shift.

Reduce unnecessary scripts

Check which plugins, libraries and third-party scripts are used on each page:

Avoid loading a library on pages that do not need it.
Remove unused scripts.
Defer non-essential JavaScript where appropriate.
Choose lighter alternatives when they meet your needs.

Optimise assets and use caching

Smaller files and sensible cache settings can improve load times:

Minify CSS, JavaScript and HTML where appropriate.
Remove code the site no longer uses.
Enable gzip or Brotli compression.
Configure browser cachingso returning visitors can reuse files where appropriate.

Design choices that support SEO

Responsive design

A responsive layout adapts to phones, tablets and desktop screens. Keep important content and features available on smaller devices.

Test the site on a phone, including menus, forms and any checkout.

Illustration of two people arranging a website across devices

Clear navigation and structure

Organise the site around a logical menu and link related pages so users and crawlers can find them.

That also makes it easier to see how different pages fit together.

Site architecture
and internal links

A useful site structure puts links where they help people move to related pages:

It helps visitors find more information.
It gives crawlers a way to discover pages.
It shows which pages the site considers important.

Use relevant link text and fix broken links as the site changes.

Illustration of a person looking at a satisfaction chart

Usability and user experience

A site’s User experience is about how easily someone can complete a task on the site.

Readable content, clear controls and predictable navigation help people find information and complete purchases.

Illustration of three people around a computer handling graphic design elements.

Typography, colour and readability

Choose legible type, use sufficient contrast and give the text room to breathe.

This helps visitors read comfortably on different screens.

Make your website more accessible with inclusive design
for people with different needs.

Read our guide to inclusive design

Descriptive URLs

Use short, descriptive URLs that reflect what each page is about.

✅ tusitio.com/diseno-web
❌ tusitio.com/page?id=43

Illustration of a person arranging several website screens

Illustration of a person editing a website on a computer

Semantic HTML

Use HTML to make each page’s structure clear:

H1: use it for the main heading and describe the subject of the page.
H2 and H3: organise related sections and subsections.
Title and meta description: summarise the page clearly for people who discover it in search.

Use descriptive text and mark up information according to its purpose.

Image optimisation

Keep image files small enough to load quickly, while preserving the detail the page needs:

Compress images to a suitable quality level.
Use formats such as WebP where appropriate.
Give meaningful images descriptive alternative text.
Use descriptive file names.

Illustration of a woman viewing folders on a laptop

Illustration of a person looking at a rocket above a search page

Tools for reviewing your SEO

These tools can help you find issues and monitor changes:

Choose tools that help answer the questions you need to investigate.

Planning a new version
of your website?

We can help with the design and the work needed to make the site easier to find. Tell us what you want it to achieve.!