What is Technical SEO? A Guide for Business Owners
Most SEO content talks about keywords and content. But if your website has technical problems underneath, adding more content won't help. Technical SEO is the foundation everything else sits on — and it's the part most Thai business websites get wrong.
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What Technical SEO Actually Means
Technical SEO is the practice of optimizing the technical infrastructure of your website so that search engines can discover, read, understand, and index your content correctly.
It's different from On-Page SEO (optimizing content and keywords) and Off-Page SEO (building backlinks). Technical SEO is about what's happening behind the scenes — the architecture, code, and configuration of the site itself.
If your technical foundation is broken, no amount of content or link building will fully compensate.
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The Most Common Technical SEO Problems on Thai Business Sites
Slow page speed
Google uses Core Web Vitals as a ranking factor. Sites that take more than 3 seconds to load lose ranking positions and lose customers — research consistently shows conversion rates drop sharply with every additional second of load time.
Not mobile-friendly
Over 70% of searches in Thailand happen on mobile. Google uses mobile-first indexing, meaning it evaluates your mobile version before your desktop version. A site that looks fine on desktop but breaks on mobile is penalized.
Duplicate content
Many sites have duplicate URLs without realizing it. For example, example.com/page and example.com/page/ are treated as two separate pages by Google, splitting ranking signals and causing confusion.
Broken links (404 errors)
Dead links signal poor maintenance to search engines and create a bad experience for users. Both matter for rankings.
Missing or incorrect Schema Markup
Especially important for businesses that want to appear in Local Search and AI Search. Schema tells search engines exactly what your business is, where it is, and what it offers.
Crawl budget wasted on low-value pages
Search engine bots have limited time to crawl each site. If that budget is spent on unnecessary URLs (parameter duplicates, thin pages, staging content), important pages get crawled and indexed more slowly.
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What a Technical SEO Audit Checks
A thorough audit covers five areas:
Crawlability and Indexing
Is your robots.txt configured correctly? Is your sitemap submitted to Google Search Console? Are there pages marked noindex that shouldn't be?
Performance
Do your Core Web Vitals (LCP, CLS, INP) pass Google's thresholds? Are images compressed and served in modern formats like WebP? Is a CDN in place?
Site Architecture
Are your URLs clean and descriptive? Is your internal linking structured logically? Are canonical tags correctly implemented to handle duplicate content?
Mobile and Security
Is HTTPS active across every page? Does the site pass Google's Mobile Usability test?
Schema and Structured Data
Is LocalBusiness, Product, or FAQ schema implemented where relevant? Is the markup error-free and validated?
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How Often Should You Run a Technical SEO Audit?
For most SME websites, a full audit at least twice a year is recommended. Always run one after:
- Moving hosting providers or changing your domain
- Redesigning or rebuilding the site
- Launching a major new feature or section
- Any unexplained drop in organic traffic
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Get a Technical SEO Audit from Krubly
We audit everything from crawlability to Schema Markup for AI Search, and deliver a clear report with a prioritized action list — not a spreadsheet of jargon.
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Get a Technical SEO Audit from Krubly
We audit everything from crawlability to Schema Markup for AI Search, and deliver a clear report with a prioritized action list — not a spreadsheet of jargon.
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Related: SEO Tools used in Technical Audits →
Related: Running a business in Bangkok? See our Local SEO guide →