You’ve written brilliant blog posts. Your backlinks are solid. Your keywords are in all the right places.
Yet your rankings aren’t moving. Traffic is flat. Something feels broken, but you can’t quite put your finger on it.
The problem is likely hiding beneath the surface. In the code. In the infrastructure. In the things Google’s crawlers see that you never do.
This is where technical SEO (search engine optimisation) comes in. It’s not flashy or visible to visitors. But it’s the foundation everything else rests on. Skip it, and even the best content will struggle to rank.
What Is Technical SEO, Really?
Think of technical SEO like the engine of a car. A beautiful paint job means nothing if the engine won’t start. You can polish the exterior all day, but if the mechanics underneath are broken, you’re going nowhere.
Technical SEO is the mechanical side of your website. It’s about making sure Google can find your pages, understand them, and serve them quickly to real people. It’s about trust, speed, and accessibility.
The good news? Most businesses aren’t checking these things properly. That’s where opportunity lives.
The 5 Critical Areas We Always Audit
1. Site Speed and Core Web Vitals
Your site’s speed is now a confirmed Google ranking factor. Not tomorrow. Right now.
In South Africa, where internet speeds vary wildly and mobile data costs are real, this matters even more. A slow website doesn’t just hurt rankings. It hemorrhages visitors.
When we audit, we’re looking at:
- How fast your largest content loads (Largest Contentful Paint)
- How responsive your page is to user interaction (Interaction to Next Paint)
- How much the page layout shifts as it loads (Cumulative Layout Shift)
These are Core Web Vitals. They’re Google’s way of measuring real user experience. A site that takes 4 seconds to load loses visitors before they even see your content. Rank on page one, and nobody visits? That’s not a win.
We look deeper than just overall speed. We check if your images are optimised. We examine server response times. We see if your code is bloated. We find where the slowdowns actually happen, not just that they exist.
Most audits tell you “your site is slow”. Real audits tell you why and how to fix it.
2. Mobile-Friendliness
Over 80 percent of South Africans browse the web on mobile devices. This isn’t a secondary channel. It’s the main channel.
Yet we still audit sites where buttons are too small to tap. Text is unreadable without zooming. Layouts break on anything smaller than a desktop screen.
Google now indexes mobile first. This means Google looks at your mobile version to decide your rankings. If your mobile experience is poor, your desktop rankings suffer too.
In our audits, we check:
- Is the layout responsive across all device sizes?
- Are buttons and links easy to tap with a thumb?
- Does text scale properly on small screens?
- Can users navigate without zooming?
- Do forms work smoothly on mobile?
A responsive design isn’t a luxury anymore. It’s non-negotiable.
3. Crawlability and Indexing
Here’s a hard truth: if Google can’t find your pages, they don’t exist in search.
Imagine a taxi rank where taxis can’t find the right queues. Chaos. That’s what a poorly crawlable website looks like to Google’s bots. They’re trying to navigate through your site, but something is blocking them.
Common problems we find:
- Broken internal links leading to dead pages
- Pages accidentally blocked by robots.txt files
- Poor site structure forcing Google to dig too deep
- Duplicate content confusing the search engine
- Missing XML sitemaps leaving pages undiscovered
We also check your crawl efficiency. Google has a “crawl budget”. It can only crawl so many pages per day. If your site has thousands of useless pages (like tag archives or duplicate filters), you’re wasting that budget. Important pages might not get crawled at all.
4. Structured Data and Schema Markup
This is where we often find the biggest missed opportunities.
Schema markup is like giving Google a cheat sheet about your content. Instead of Google guessing what your page is about, you tell it directly in code.
A recipe page with schema markup shows the recipe, prep time, and ratings in search results. That extra information pulls clicks. A product page with schema shows the price and availability instantly. An article shows the author and publish date.
Most sites skip this entirely. They’re leaving potential clicks on the table.
We audit what schema is present, what’s missing, and what’s implemented incorrectly. We check for local business schema, product schema, article schema, review schema, and more depending on your business type.
Correct schema markup isn’t just about rankings. It’s about better visibility in search results, which means more clicks at the same ranking position.
5. HTTPS and Site Security
Google prefers secure sites. It’s been a ranking factor for years now.
But security isn’t just about rankings. It’s about trust.
When a visitor sees that padlock icon next to your URL, they know their data is encrypted. Without it, they see a warning. Many leave immediately.
In our audits, we verify:
- Is your SSL certificate installed and valid?
- Are all pages served over HTTPS, not just the homepage?
- Are there any mixed content warnings (HTTP resources on HTTPS pages)?
- Is your security certificate up to date?
A broken SSL certificate is like a broken lock on your front door. It signals that something isn’t right, even if technically everything’s fine.
What a Real Technical SEO Audit Looks Like
A proper audit doesn’t just run an automated tool and send you a report. (Many agencies do exactly that and call it a day.)
Real audits dig into why problems exist and what they actually cost you.
For example, we might discover:
- Your site takes 6 seconds to load on 4G connections, and you’re losing 40 percent of mobile visitors before they see your homepage
- Three key product pages are blocked from Google by an old robots.txt rule
- Your structured data is missing on 200 pages that rank, meaning you’re losing rich snippet opportunities
- Your site has 5,000 duplicate pages indexed, wasting crawl budget on pages customers will never see
Then we prioritise. Not all problems affect rankings equally. We focus on fixes that will have the biggest impact on traffic and conversions first.
Why Most Audits Miss These Things
Many SEO agencies run audits using automated tools. These tools scan your site and spit out a report. It’s fast. It’s scalable. It’s also missing the context that matters.
An automated tool says “you have 47 broken links”. A real audit investigates those links, understands which ones matter to rankings, and fixes the critical ones first.
An automated tool says “your site is slow”. A real audit finds the exact bottleneck: maybe it’s unoptimised images, maybe it’s a slow database query, maybe it’s loading third-party scripts unnecessarily.
The difference isn’t just in depth. It’s in usefulness. One gives you a list of problems. The other gives you a roadmap to actually solve them.
Getting Started with Technical SEO
You don’t need to be a developer to understand technical SEO. But you do need to understand its importance.
Here’s what we recommend:
For DIY learners: Start with Google Search Console. It’s free and shows you problems Google is finding on your site. Check your Core Web Vitals report. Check your mobile usability report. Fix what shows up there first.
For agencies evaluating partners: Ask potential SEO agencies how they prioritise audit findings. Ask them to explain one technical issue in terms a non-technical person understands. Ask what their audit costs reveal about your traffic loss.
The best technical SEO isn’t complicated. It’s often just the basics done properly. Fast loading. Mobile-friendly design. Proper indexing. Clear structure. Secure connection.
But these basics separate sites that rank from sites that don’t.
Your content is important. Your backlinks matter. But without solid technical SEO underneath, you’re building on shaky ground. Fix the foundation first. Everything else becomes easier after that.