Share

What technical SEO is

Technical SEO is the work that lets search engines find, crawl, index and understand your website. When people say "SEO", they usually mean one of three overlapping things: keyword research (deciding what to target), content (writing pages that rank for those searches) or technical SEO (making the site itself readable for search engines).

Technical SEO doesn't write the content. It makes sure search engines can reach the content, read it and show it correctly. Without that foundation, even excellent content underperforms.

Think of your website as a shop. Content is what's inside: the products, the displays, the staff. Technical SEO is the building: the address is right, the doors open, the lights work and Google can see in through the window. A brilliant shop in a basement with no sign and a blocked entrance gets few customers.

What technical SEO covers

Crawlability: can Google find and read your pages?

Search engines discover pages by following links, a process called crawling. If your menu depends on JavaScript that search engines struggle to run, if your robots.txt file blocks pages by accident, or if no internal links point to an important page, Google may never find it.

A technical audit checks which pages Google can and can't reach, repairs the broken paths, and uses internal links and the XML sitemap to point Google at the pages that matter most.

Indexation: is Google putting your pages in the search database?

Crawling and indexing are different steps. Google can crawl a page (visit it) and still decide not to index it (keep it for search results), usually because of duplicate content, thin content, a noindex tag left on by accident, or a page that doesn't clear Google's quality bar.

An audit compares what's indexed against what should be, using Search Console's Page indexing report, so the pages meant to rank are the ones Google keeps.

Site speed & Core Web Vitals: does your site load fast enough to rank and convert?

Google measures page experience through Core Web Vitals: Largest Contentful Paint (how fast the main content loads), Cumulative Layout Shift (whether the page jumps around as it loads) and Interaction to Next Paint (how quickly the page responds when someone taps or clicks).

The usual culprits are oversized images, render-blocking JavaScript and slow hosting. Fixing them helps rankings and conversions together. Portent's 2022 study found a B2B site that loads in one second converts three times as well as one that takes five.

Structured data (schema markup): does Google understand what your content means?

Search engines read text, but they need help knowing what kind of content it is: a business, a person, an article, a product or an event. Structured data uses a shared vocabulary (Schema.org) to label each one.

It still helps Google understand your pages, and it gives AI answers clean facts to draw on. The visual rewards have shrunk, though. Google limited FAQ rich results in 2023 and retired them for all sites in May 2026, and it stopped showing review stars for reviews a business marks up about itself in 2019.

URL structure & canonicals: is your site clear about which URL is the official version of each page?

When the same content loads at several URLs, Google may split its signals across them instead of combining them. A canonical tag tells Google which version is the official one.

Readable URLs help too. A URL like /services/seo-consultant tells people and search engines what the page covers, where /page?id=42 tells them nothing.

Mobile optimization: Google ranks the mobile version of your site

Google finished moving to mobile-first indexing in October 2023, so the mobile version of your site is the one it crawls and ranks. If your mobile pages are a stripped-down copy of desktop, the stripped-down copy is what Google judges.

A technical audit checks that mobile pages carry the same content, structured data and internal links as desktop, and that they load quickly on a phone connection.

Work With John

If your site isn't bringing in inquiries, that's fixable.

I work with US service businesses and B2B brands on SEO, websites and lead follow-up. On a free strategy call, I'll tell you what's holding your site back, without a sales pitch.

Get a Free Audit

Where technical SEO fits

A common mistake is to buy technical SEO as a one-off fix and then wonder why rankings stay flat. It's the first of five layers, and results come when all five work together:

  1. A technical foundation that lets Google crawl, index and understand your pages
  2. Keyword research into the searches your buyers run at each stage of their decision
  3. Content that answers those searches with specifics
  4. A clear path from landing on a page to becoming a lead
  5. Links and mentions from credible sites, which tell Google your business can be trusted

Businesses that win steady leads from search have all five layers working. The ones that stall are usually missing one or two, and the technical foundation and conversion are the easiest to miss, because buyers never see them.

How a technical SEO engagement runs

For a service business with 10 to 50 pages, an engagement starts with an audit covering the six areas above. The audit produces a ranked fix list: what's broken, what fixing it is worth and what order to work in.

The technical foundation usually takes one to two months. After that, the work moves to keywords, content and conversion, the layers that build on the foundation over the following six to twelve months.