Crawl, indexation, CWV, schema and AI-crawler access.
A technical SEO audit finds the crawl, indexation, performance, structured-data and architecture issues that stop Google and AI engines from understanding, ranking and citing a site.
A technical SEO audit is not a generic crawl export with red and green cells. It is a diagnosis of whether Google, Bing and AI retrieval systems can reach the right pages, understand the right canonical version, and trust the templates enough to rank or cite them.
| Audit layer | What gets checked | Why it matters |
|---|---|---|
| Crawl access | robots.txt, sitemap, blocked paths, status codes, crawl traps | Search engines cannot rank or cite what they cannot fetch cleanly |
| Indexation | canonical tags, noindex, duplicate clusters, soft 404s, parameter URLs | Signals split when Google stores the wrong version of a page |
| Architecture | internal links, depth, orphan pages, faceted paths, template hierarchy | Important pages need a clear path and repeated internal confirmation |
| Rendering | HTML availability, JS dependency, mobile layout, Core Web Vitals | Slow or unstable pages create behavior and crawl quality problems |
| Structured data | Organization, Person, Article, Service, FAQ and breadcrumb schema | Schema must confirm visible content, not invent facts |
The output is a fix order, not a scare list. A technical audit only earns its keep if it tells you what to fix first.
The sequence is deliberately boring because technical SEO fails when people jump straight to tools without asking what the business needs indexed.
If a site is also targeting AI search, I add crawler access and extractability checks: whether GPTBot, OAI-SearchBot, PerplexityBot and similar agents can fetch clean HTML and whether the important answer blocks are visible without interaction.
These services overlap, but they solve different problems. The audit is the diagnostic layer. Consulting turns the diagnosis into a roadmap and ongoing decisions. AI SEO builds the answer-engine and generative-search layer on top of a site that search systems can already parse.
| Need | Best fit | Output |
|---|---|---|
| You suspect crawling, indexing, speed or schema is blocking growth | Technical SEO Audit | Prioritized technical fixes and evidence |
| You need strategy, roadmap and execution decisions across SEO | SEO Consulting | Roadmap, priorities, implementation support and reporting |
| You need visibility in ChatGPT, Perplexity and AI Overviews | AI SEO | Crawl, entity, answer-format and authority work across AI surfaces |
For most sites, the technical audit comes first because it establishes whether the rest of the work has a clean foundation. If the audit finds only minor issues, the next step may be content, links or GEO. If it finds indexation debt, fixing that comes before publishing more pages.
The exact bugs change by stack, but the patterns repeat across audits.
The audit separates real blockers from tool noise. A missing optional schema field and a canonical loop are not the same class of problem.
A useful SEO audit has to survive handoff. I write findings so a developer can reproduce the issue and a founder can understand why it matters.
For teams without a developer, I can separate fixes into CMS-level tasks, lightweight markup edits and changes that genuinely need engineering time. That keeps the audit actionable instead of becoming a 90-page document nobody opens twice.
A technical audit is not judged by the number of issues found. It is judged by whether the right pages become crawlable, indexable, faster, more internally supported and easier for search systems to understand.
After fixes, I usually check: indexed canonical URL count, crawl errors and excluded pages in Search Console, sitemap coverage, Core Web Vitals trends, internal-link depth, schema validation, organic impressions on affected templates, and whether AI crawlers can fetch the relevant pages. For AI search projects, the same technical baseline feeds citation monitoring in ChatGPT, Perplexity and AI Overviews.
The report is written with caveats. A technical fix can unlock growth, but it does not guarantee rankings by itself. If competitors have stronger content, links and brand demand, technical SEO removes the brake; it does not replace the engine.
Also see: AI SEO · Generative Engine Optimization · SEO Consulting