Technical SEO7 min read
What Is Technical SEO? A Plain-English Explanation
Technical SEO sounds intimidating. Most of it isn't. Here's what matters and what you can safely ignore.
By Oh So SEO·
What Is Technical SEO?
Technical SEO refers to the behind-the-scenes optimisation of your website to help search engines crawl, index, and understand your content. It's distinct from on-page SEO (which is about your content) and off-page SEO (which is about links and authority). Technical SEO is about the structure and health of your site itself.Does Technical SEO Matter for Small Businesses?
Yes — but not as much as most agencies would have you believe. Modern website builders (Shopify, WordPress, Wix, Squarespace) handle many technical SEO requirements automatically. You don't need to understand server configuration or write complex code. But there are still important technical factors you should know about and monitor.The Technical SEO Factors That Actually Matter
Crawlability
Can Google's crawlers actually access your pages? A robots.txt file that accidentally blocks Google, or a noindex tag on the wrong page, can prevent your content from appearing in search at all. Check: Use Google Search Console's URL Inspection tool to see if specific pages are indexed.Site Speed
Covered in detail in our page speed guide, but in short: slow sites rank lower. Compress your images, remove unused apps, and test your speed monthly.Mobile-Friendliness
Google uses mobile-first indexing, meaning it judges your site based on the mobile version. If your site doesn't work well on a phone, your rankings suffer. Check: Use Google's Mobile-Friendly Test tool.HTTPS
Your site should use HTTPS (the padlock icon in the browser). This is a minor but confirmed ranking signal, and it also builds trust with visitors. Most hosts provide free SSL certificates. If your site still shows as HTTP, contact your hosting provider.Canonical Tags
Canonical tags tell Google which version of a page is the "official" one, preventing duplicate content issues. This is particularly important for e-commerce sites where the same product might appear at multiple URLs. Most platforms handle this automatically. But it's worth checking, especially on Shopify.Sitemap
An XML sitemap lists all the important pages on your site and helps Google discover them. Most platforms generate this automatically (usually at yoursite.com/sitemap.xml). Make sure you've submitted it to Google Search Console.Structured Data
Structured data (also called schema markup) is code that helps search engines understand your content. It can enable rich results — star ratings, FAQs, recipes — in search results. This is worth adding for local businesses (LocalBusiness schema), products (Product schema), and blog posts (Article schema).What You Don't Need to Worry About (Yet)
- Log file analysis
- JavaScript rendering issues (unless you're running a complex web app)
- Hreflang tags (unless you have multiple language versions)
- Advanced CDN configuration
FAQ
How do I check my technical SEO? Run an SEO audit. A good tool will flag crawl errors, indexing issues, speed problems, and missing technical elements. How often should I check technical SEO? Do a full audit quarterly. Check Google Search Console monthly for new errors. Can I fix technical SEO issues myself? Most common issues, yes. Things like page speed, mobile-friendliness, and adding a sitemap don't require coding. More complex issues (JavaScript rendering, hreflang) may need a developer.Tags
technical seoseo auditcrawlability
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