What SEO should be included in a website build?

When a business commissions a new website, SEO is often treated as a separate concern — something to 'do later' once the site is live. This is a costly mistake. The structural decisions made during a website build determine how easy or difficult the site will be to rank, sometimes permanently. Here is what should be non-negotiable in any website build from a search perspective.

Technical SEO foundations

Technical SEO refers to the code and configuration decisions that affect how search engines crawl, index and understand the site. These decisions are made during the build and are difficult to retrofit later.

Clean URL structure

Every page should have a clean, descriptive URL that reflects its content. Compare '/services/p?id=4' with '/seo-services-johannesburg' — the second tells both visitors and search engines what the page is about before they open it.

Correct heading hierarchy

Each page should have exactly one H1 (the main page title), followed by H2s for major sections, and H3s for sub-sections within those. This structure helps search engines understand what is important on each page. It is also a basic accessibility requirement.

Page speed and Core Web Vitals

Google uses page speed as a ranking factor, specifically through a set of metrics called Core Web Vitals that measure loading performance, visual stability, and interactivity. A website built without attention to these factors starts at a disadvantage in search rankings.

Mobile-first design

Google uses mobile-first indexing, meaning it primarily uses the mobile version of a site for ranking. A site that is difficult to use on mobile will rank lower than one that is not, regardless of how good the desktop experience is.

Structured data

Structured data (schema markup) is code added to a page that tells search engines what type of content the page contains — a business, a service, an article, a FAQ. It helps search engines display richer results and understand relationships between pages.

On-page SEO that should be set during the build

Title tags and meta descriptions

Every page should have a unique, descriptive title tag (the text that appears in the browser tab and in search results) and a meta description (the text that appears below the link in search results). These should be written specifically for each page — not generated automatically or left as defaults.

Service-specific landing pages

One of the most common SEO mistakes in a website build is combining all services onto a single page. Each service your business offers is likely to have its own search demand — people searching for 'website maintenance Johannesburg' and 'website design Johannesburg' are different searches. Individual pages for each service allow the site to rank across a broader set of searches.

Location signals

For businesses that serve a specific geography, location signals in the page copy, title tags, and meta descriptions help the site appear in local searches. This is distinct from Google Business Profile (which is a separate setup), but both are necessary for strong local visibility.

What build-time SEO does not include

Build-time SEO creates the right foundations. It does not, on its own, produce rankings. Active SEO work — content development, link building, regular performance review and content updates — is an ongoing activity that happens after launch. A well-built site makes that ongoing work more effective; it does not replace it.