Web design isn’t just about aesthetics; it’s about how a site is put together under the hood. Design choices can have a big impact – positive or negative – on a site’s SEO. In turn, this can affect the site’s performance over its entire lifetime.

If you’re a professional web designer (or if you’re creating your own site from scratch), it’s important to know a few SEO basics – a little knowledge goes a long way to building sites that reach their intended audience. Understanding these 10 aspects of SEO will help you design sites that work well, in addition to looking great.

1. Site structure

Every site should be designed with a clear, logical structure in mind. The homepage should state the big picture purpose of the site – its reason for existing – and details should be broken down into subpages.

For example, if you’re designing a website for recipes, the home page could lead to separate category pages for dinners, soups, and desserts. Each of those subpages could then lead to individual recipe subpages of their own.

It’s fine to have several ‘layers’ of subpages on your site, but don’t go too deep or Google might have trouble crawling all of them. In general, try to keep your site’s depth to three or four layers. Here’s a visual from Moz of what a well-structured site looks like:


A site’s homepage should lead to its subpages, which lead to their own subpages, and so on.

2. URL structure

URLs affect a site’s SEO, so it’s important to choose good ones right from the start. Here are a few best practices to follow for URLs:

  • Shorter is better, since shorter URLs are more memorable than longer ones
  • A URL should describe the content of the page as clearly as possible. Use plain English instead of abbreviations or strings of letters and numbers
  • For subpages, use hyphens to break up words for readability. For example, use https://example.com/build-a-birdhouse instead of https://example.com/buildabirdhouse.
  • Include keywords in URLs whenever it seems natural to do so (but avoid keyword stuffing).

3. Site navigation

In addition to being well-structured, your sites should be easy for visitors (and Google) to navigate. A site menu should be located prominently at the top of the page or along the sidebar. Every page on the site should be findable. Avoid creating ‘orphaned pages’ that aren’t linked from any other pages on the site. If visitors can’t find a page by following links, search engines won’t know that page exists either.

4. Mobile-friendly design

The age of mobile is here, and responsive web design isn’t optional anymore. For a site to provide good UX and rank well, it needs to adjust for comfortable viewing on a small screen. If you haven’t already, make responsive design your default design mode. You can easily test the mobile-friendliness of your sites using this simple tool from Google.

5. Site speed

Along with mobile-friendliness, site speed is another UX consideration that affects SEO. Google penalizes slow sites in their rankings, and visitors are less likely to stick around if a page takes a few seconds to load. Google’s PageSpeed Insights tool can tell you how fast your sites are and what you can adjust to make them faster.

6. Titles, headers and meta descriptions

Titles, headers and meta descriptions are important aspects of on-page SEO. Every page on a site should have unique content in its <title> tag – in other words, don’t copy and paste the same title across your whole site. Each page’s title should include at least one keyword that’s relevant to the content on the page. Likewise, include keywords in the header tags on each page, especially the <h1> tag.

Meta descriptions – the blurbs that appear under links in SERPs – are a little different. They don’t directly affect SEO, but they do impact how many people click on your site in SERPs. They’re basically free advertising space, so put some thought into them, and include your main keywords to catch searchers’ eyes.


A couple examples of meta descriptions in Google.