Design and SEO: how the look of a website affects its rankings

Design and search engine optimisation (SEO) — two apparently different fields united by one goal: making your website more effective. At first glance design concerns visual perception and ease of use, while SEO focuses on technical aspects and a site's visibility in search engines. Yet these two disciplines are closely linked and interdependent in today's world of internet marketing.

In this article we explore the remarkable symbiosis between design and SEO. We look at how they influence each other and how that relationship can be used to your advantage. Here you will find recommendations for optimising design with search engine requirements in mind, along with advice on improving SEO through well-considered design.

Table of contents:

• The basics of SEO and design
• Defining SEO and its key components
• Defining design in the context of a website
• An overview of the pros and cons of various design approaches from an SEO point of view
• The «Mobile-First» approach
• Flat Design
• Complex animations and interactive elements
• The relationship between design and SEO
• Mobile optimisation
• Page loading speed
• UX and UI
• Site structure and navigation
• Best practice
• Using media content
• Text and headings
• Semantic markup
• CTAs and internal links
• Measurement and analysis
• How to track the SEO effectiveness of your design with analytics tools

The basics of SEO and design

Before diving into the complex details of the relationship between design and SEO, it is important to get the basic concepts of each field straight. Understanding the fundamentals makes it considerably easier to apply the complex strategies and tactics we look at in the sections that follow.

Defining SEO and its key components

SEO, or search engine optimisation, — is a set of measures aimed at improving a website's visibility in search engines such as Google, Bing and Yahoo. The main components of successful SEO include quality content, keyword optimisation, internal and external link strategies, and technical aspects such as page loading speed and mobile responsiveness.

Defining design in the context of a website

When we talk about the design of a site, we mean not only visual elements such as colours and typefaces, but also the overall structure, the user interface and even how elements on the page interact. Good design not only attracts visitors' attention, but also makes their time on the site as comfortable and productive as possible.

An overview of the pros and cons of various design approaches from an SEO point of view

The «Mobile-First» approach

Pros:

• Better rankings in mobile search.
• Fast loading on mobile devices.

Cons:

• A possible decline in the user experience on desktop versions.

Flat Design

Pros:

• Fast loading, because there are no complex elements.
• Easy to take in and navigate.

Cons:

• The lack of visual depth can reduce user engagement.

Complex animations and interactive elements

Pros:

• A high level of engagement and interest from the user.

Cons:

• Slower page loading, which has a negative effect on SEO.

To close the first part, it is worth noting that there is no universal design approach that maximises every aspect of SEO at once. Understanding how these elements interact, however, lets you make a better-grounded choice of design for your site.

The relationship between design and SEO

With the basics covered, we can move on to something more complex — examining how design and SEO interact. In this part we look at that relationship in more depth, focusing on four key areas: mobile optimisation, page loading speed, user experience and interface, and site structure and navigation.

Mobile optimisation

Smartphones have become an inseparable part of our lives, and search engines know it. Responsive design that displays a site conveniently on mobile devices earns ranking bonuses from Google and other search engines. If your site displays well on mobile, that not only improves the user experience but also raises the site's chances of taking a high position in mobile search.

Page loading speed

Page loading — is nothing other than the first impression of your site. If a page loads slowly, that can scare visitors away and increase the bounce rate. Optimised images, a minimal number of scripts and lightweight CSS files substantially reduce loading time. Search engines, in turn, reward fast sites with higher rankings.

UX and UI

A convenient, intuitive interface makes life easier for users, which inevitably shows in the site's metrics. Easy navigation, clear calls to action (CTAs) and well-structured content hold the visitor's attention and encourage them to spend more time on the site. That in turn reduces the bounce rate and increases your site's «weight» in the eyes of search engines.

Site structure and navigation

The structure of a site — is not merely a table of contents, it is a map for search engines. The more logical and consistent it is, the easier it is for a search robot to index all your pages. Clear, understandable URLs, a well-organised menu and meaningful markup (using HTML5 tags, for example) make your site «transparent» to search engines, which benefits SEO.

Best practice

Now that we understand the relationship between design and SEO, it is time to talk about how that knowledge can be applied in practice. In this section we look at four key areas where the right design decisions can make your site not only attractive but also effectively optimised for search engines.

Using media content

Media content on your site can be a powerful tool for attracting attention. Unoptimised images and video, however, can seriously slow the page down. Compressing images, using web-optimised formats (WebP for images, for example) and lazy loading of media files can speed your site up considerably. For video it is worth using embedded players and providing text descriptions to improve indexing by search engines.

Text and headings

Headings do not merely structure your content; they also help search engines understand which sections of your site matter most. The H1 heading should be unique on every page and include the main keywords. Subheadings (H2, H3 and so on) organise the content further and should also contain keywords, though less general ones. That not only improves the user experience but also helps search engines index your site better.

Semantic markup

HTML5 offers a number of semantic tags such as <header>, <footer>, <article> and <section>, which make your site clearer to search engines. Using these tags helps not only with SEO but also makes your site more accessible to people with disabilities who use screen readers. That adds extra «points» to your SEO rating, as accessibility becomes an increasingly important factor in ranking algorithms.

CTAs and internal links

Call-to-action buttons (CTAs) and internal links play a key role in keeping users on your site and improving its structure. Clear, attractive CTAs can increase conversion and reduce the bounce rate. Internal links help distribute «page juice» (PageRank) and improve the indexing of the site. Avoid overloading a page with links, however, and make sure each one is genuinely useful to the user.

Measurement and analysis

Even the most creative design and the cleverest SEO strategy can prove useless if you do not know how to measure their effectiveness. In this final part we look at the analytics tools and methods that help you assess how successfully your site combines design and search engine optimisation.

How to track the SEO effectiveness of your design with analytics tools

Choosing the right metrics

Before starting your analysis, define the key indicators that most accurately reflect your goal. That can be the bounce rate, time on page, conversion or the number of views. Each metric gives its own unique view of how effective your design and SEO are.

Google Analytics

Google Analytics — is a powerful tool that can provide deep insights into how users interact with your site. Here you can track which pages are the most popular, how much time users spend on the site and what actions they take. That data tells you how successful your design is from an SEO point of view.

A/B testing

A/B testing lets you compare two or more versions of your site or of individual elements (CTA buttons, headings, images) to determine which performs better. The method makes it possible to take well-grounded decisions based on data rather than intuition.

Loading speed analysis tools

Loading speed — is a critical parameter affecting SEO. Tools such as Google PageSpeed Insights or GTmetrix help you understand which design elements slow your site down and suggest optimisation recommendations.

Tracking conversions and the bounce rate

Conversion and the bounce rate — are two important metrics directly connected with the user experience and interface. Analytics tools can show at which stages users «drop off» or, on the contrary, successfully complete target actions, which indicates how effective your design is.

In closing I want to stress that design and SEO are not mutually exclusive or conflicting fields. On the contrary, they can and should work together towards a common goal — creating a successful, attractive and accessible website.