Technical SEO: How To Make Your Site Easy for Google and AI To Crawl, Understand and Trust
Technical SEO is the work that makes sure search engines and AI crawlers can access, render, index and understand the pages on your website. It sits underneath content and links: if Google, Bing or ChatGPT’s search crawler cannot read a page properly, nothing else you do to that page can perform.
Many businesses publish good content for months and wonder why it never ranks, only to find a blocked folder, a duplicate version of every page or a template that hides text behind JavaScript. This guide is for owners and marketing managers who want to know what technical SEO covers, what to fix first and how it supports AI search visibility.
Quick Answer: What Is Technical SEO?
Technical SEO is the practice of making a website easy for search engines and AI tools to crawl, render, index and trust. It covers site access, indexing, speed, mobile usability, structured data and site architecture. Every business with a website that wants organic leads needs it. Start with a crawl and the Search Console Pages report.
Not sure whether technical issues are holding your site back? An AI Marketing Audit includes a technical review of the pages that matter most.
What Does Technical SEO Cover?
Technical SEO covers five areas: crawl access, indexing, page experience, structured data and site architecture. Each one answers a simple question a search engine asks: can I reach this page, should I keep it, will people enjoy it, what is it about, and how does it relate to the rest of the site?
Google is clear that page experience matters, recommending site owners aim for a Largest Contentful Paint within 2.5 seconds, an Interaction to Next Paint under 200 milliseconds and a Cumulative Layout Shift under 0.1 (Google Search Central). Speed alone rarely wins rankings, but a slow, jumpy page loses visitors before they read a word.
Crawl Access and Indexing
Crawl access depends on robots.txt rules, server responses, firewalls and internal links. Indexing depends on canonical tags, noindex settings, duplicate content and whether Google judges the page worth keeping.
Structured Data and Architecture
Structured data, such as Article, Organization and BreadcrumbList schema, labels what a page is about. Architecture, meaning menus, categories and internal links, tells crawlers which pages matter most.
Why Technical SEO Comes First in My TLC Method
Technical SEO is the “Tech” in my TLC Method (Tech, Links, Content), and it comes first because fixing access is often the fastest win in an SEO program. Links and content cannot lift a page that search engines cannot reach or that competes with three duplicate copies of itself.
In audits I regularly find the same handful of problems: staging sites left indexable, tag and category archives outranking real service pages, old URLs redirecting in chains, and security tools blocking legitimate crawlers. None of these show up on the front end, so they can sit unnoticed for years. Fixing them usually lifts several pages at once, which is why I check them before recommending any new content. The full method is in my TLC Method SEO guide.
The 7 Technical SEO Fixes I Check First
The technical SEO fixes worth checking first are the ones that block or confuse crawlers on your highest-value pages. Work through them in this order, because the early items stop later improvements from being seen.
- Robots and firewall access. Confirm robots.txt, security plugins and CDN rules allow Googlebot, Bingbot and AI search crawlers to fetch key pages.
- Index status. Use the Search Console Pages report to find important URLs excluded as duplicate, crawled but not indexed, or noindexed.
- Canonicals and duplicates. Make sure each page has one self-referencing canonical and that www, non-www, http and trailing-slash versions resolve to a single URL.
- Redirects and broken links. Replace redirect chains with single 301s and fix internal links pointing at 404 pages.
- Rendering. Check that main content is in the HTML the server sends, not only loaded later by JavaScript, so every crawler can read it.
- Core Web Vitals. Improve LCP, INP and CLS on templates that carry the most traffic, starting with mobile.
- Structured data and internal links. Add schema that matches visible content and link key pages from hubs within one or two clicks of the home page.
Want these fixes done and monitored for you? My SEO, AEO and GEO Retainer starts every engagement with this technical pass.
How Do You Prioritise Technical SEO Issues?
Technical SEO issues should be prioritised by the revenue of the pages affected and the severity of the problem, not by the number of warnings a tool reports. A single block on a top service page outranks hundreds of minor image alt text warnings.
| Issue type | Severity | Typical example | Priority |
|---|---|---|---|
| Access blocked | Critical | Robots rule or firewall blocking crawlers | Fix immediately |
| Not indexed | High | Service page marked duplicate or noindex | Fix this week |
| Duplicate URLs | High | Multiple versions of the same page | Fix this month |
| Slow templates | Medium | Poor mobile LCP on blog or product templates | Plan and fix |
| Minor warnings | Low | Missing alt text, long titles | Batch with content updates |
How Does Technical SEO Affect AI Search Visibility?
Technical SEO directly affects AI search visibility because AI tools can only cite pages they can fetch and read. Google says its generative AI features are “rooted in our core Search ranking and quality systems” (Google Search Central), and assistants like ChatGPT and Perplexity rely on their own crawlers or search partners.
That makes two checks essential: allowing the search-focused AI crawlers in robots.txt, and server-rendering the main content. My GEO audit checklist lists the AI-specific checks, and my guide to generative engine optimisation explains how they fit into a wider AI visibility plan.
Who Is Technical SEO For?
Technical SEO is for any business that relies on its website for leads or sales, but it matters most on larger sites, sites that have been redesigned or migrated, and sites built on heavy themes or JavaScript frameworks.
Businesses After a Redesign or Migration
New sites often launch with lost redirects, changed URLs and staging settings left on. A technical check in the first month protects years of earned rankings.
Ecommerce Stores
Filters, variants and pagination create thousands of near-duplicate URLs. Technical SEO keeps crawlers focused on categories and products that sell. See my ecommerce SEO Sydney guide.
Service Businesses With Growing Content
As blogs grow, archives, tags and thin posts start competing with service pages. Technical clean-up restores focus.
Who It Is Not For
A brand-new five-page site on a reputable platform rarely needs deep technical work beyond the basics. Its priority is content and local signals, with a technical check once it grows.
Frequently Asked Questions About Technical SEO
How often should I run a technical SEO audit?
Run a full technical SEO audit at least twice a year and after any redesign, migration or major plugin change. Monitor Search Console weekly so new indexing problems are caught early.
Can I do technical SEO on WordPress myself?
WordPress owners can handle basics with a reputable SEO plugin, caching and image compression. Redirect mapping, crawl analysis and rendering issues usually need a specialist to avoid breaking working pages.
What tools are used for technical SEO?
Common tools include Google Search Console, Bing Webmaster Tools, PageSpeed Insights and a crawler such as Screaming Frog. Search Console is the most important because it shows what Google actually sees.
Does technical SEO alone improve rankings?
Technical SEO removes barriers, so rankings improve when good pages were being held back. On a site with weak content or no authority, technical fixes are necessary but not enough on their own.
What To Do Next
Technical SEO makes sure search engines and AI tools can reach, read and trust your best pages. Start with crawl access and index status on your highest-value URLs, then fix duplicates, speed and structure in order of revenue impact.
Want to know what is blocking your site? Ask Crom for a technical SEO review, or start with an AI Marketing Audit.
About Crom Salvatera
Crom Salvatera is a Sydney-based AI marketing consultant and Head of SEO, AEO and GEO with 22+ years in marketing and 14 in high-level digital. He created the TLC Method (Tech, Links, Content), has managed and optimised 500+ ad accounts and has helped generate $650M+ in revenue for employers and clients, with brand experience including LEGO, Hasbro and JB Hi-Fi. Connect with him on LinkedIn.
