What Is Technical SEO?, explained properly.
In a nutshell
Technical SEO is the engineering layer beneath content and links: crawlability, indexability, Core Web Vitals, mobile friendliness, structured data, HTTPS, sitemaps, and redirects. As an example, a fast WordPress site with broken canonical tags can lose half its rankings to duplicate content.
What is technical SEO?
Technical SEO is about optimising the backend structure and infrastructure of a website so search engines can find, crawl, and index your pages without obstacles. Think of technical SEO as the plumbing and electrics of a property: invisible when it works, but everything breaks when it doesn't.
Why technical SEO matters
Even great content fails without a proper technical foundation. Common problems include: - Pages that cannot be crawled or indexed. - A site that loads too slowly. - Duplicate content issues from poor URL handling. - Insecure (HTTP) sites. - A broken mobile experience.
Key areas of technical SEO
- **Crawlability:** can Googlebot access all the pages you want indexed? - **Indexability:** are the right pages indexed and the wrong ones excluded? - **Site speed and Core Web Vitals:** load time, interactivity, and visual stability. - **Mobile-first indexing:** Google ranks using the mobile version of your site. - **HTTPS:** secure sites are a ranking signal. - **Structured data:** JSON-LD schema for rich results. - **URL structure and canonicals:** prevent duplicates with canonical tags. - **Redirect management:** clean 301 redirects without chains. - **XML sitemaps and robots.txt:** guide Google to the correct pages.
Technical SEO audit
A technical SEO audit identifies issues across all of these areas so you know what to fix and in what order.
What Is Technical SEO?: common questions.
What does technical SEO cover?
Eight major areas: crawlability (robots.txt, internal linking), indexability (canonicals, noindex, sitemaps), site speed and Core Web Vitals, mobile usability, HTTPS and security, structured data, site architecture and URL structure, and JavaScript rendering.
How is technical SEO different from on-page SEO?
On-page SEO is what's on each page: content, headings, meta tags, internal links. Technical SEO is the underlying technology: how pages are served, indexed, and rendered.
Do I need a developer for technical SEO?
Many fixes are possible through CMS plugins, but deeper changes usually need developer involvement.
How often does technical SEO need attention?
Run major audits annually, review Core Web Vitals quarterly, and give it continuous attention whenever you launch new features or redesign.
What clients say about working with us.
“I've had the pleasure of working with Chris on several SEO projects for my websites in the health field. He was definitely been able to demystify things so that I felt able to make decisions with him and feel confident they were the right ones. For a non-techie, that is worth gold! I look forward to working with Chris again and warmly recommend him to anyone who - like me - is unsure about all things SEO.”
“I was recommended by my branding partner to use Chris and his team last year. I can’t recommend them highly enough. They are very responsive , easy to communicate with and great at translating techy stuff when needed. They are now an essential part of my business model”
“We've been working closely with Chris, Hannah and the team for over 12 months now. As a small company with ambitious growth plans, it was incredibly important that we made the right choice on who to trust with our SEO. 18 months later, we're totally thrilled with our experience so far and our growing online presence within our market. We'd happily recommend BTT and their services to other SMEs. Drop them an enquiry!”
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