# What a technical SEO audit checks

> A technical SEO audit finds the problems that stop search engines crawling, indexing and understanding your site. Here is what it covers.

Web page: https://oravol.com/insights/what-a-technical-seo-audit-checks

## About this article

- **Published:** 4 October 2026
- **Topic:** SEO & AI Search
- **Publisher:** ORAVOL

## Key takeaways

- Crawlability and indexing come first: if pages aren't indexed, nothing else matters.
- Duplicate content, redirects and broken links waste search engines' attention.
- An audit is only useful with a prioritised fix list.

## Article

Technical SEO makes sure search engines can access, render and understand your website. An audit reviews the site systematically and produces a list of issues ranked by impact.

### Crawling

- **robots.txt:** does it block anything important?
- **Internal links:** can every important page be reached in a few clicks?
- **Orphan pages:** are there pages no other page links to?
- **Crawl errors:** server errors, timeouts and broken links reported in Search Console or found by a crawler.

### Indexing

- **Index coverage:** which pages are indexed, and why others are excluded.
- **noindex tags:** applied only where intended.
- **Canonical tags:** pointing to the correct version of each page.
- **Duplicate content:** the same content at several URLs, for example with and without trailing slashes, tracking parameters or filter combinations.
- **XML sitemaps:** listing only indexable, canonical URLs.

### Redirects and status codes

- Old URLs redirect permanently (301) to the right new pages.
- No redirect chains or loops.
- Removed pages return 404 or 410 rather than redirecting everything to the home page.

### Rendering

Search engines need to see your main content. Sites that rely heavily on JavaScript should be checked to confirm content and links are present in the rendered page.

### Site architecture and URLs

Logical structure, readable URLs and consistent internal linking help search engines understand which pages matter most.

### Page experience

- Core Web Vitals: loading, responsiveness and stability
- Mobile usability
- HTTPS across the whole site

### Structured data

Schema markup present, valid and matching visible content.

### International and multi-language setup

If you serve several languages or countries, hreflang annotations and URL structure are checked for consistency.

### The output

A good audit ends with a prioritised list: what to fix, why it matters, how to fix it and how much effort it takes. Critical indexing problems come before minor warnings.

Our [SEO service](https://oravol.com/services/seo) starts with a technical audit, and our [website development](https://oravol.com/services/website-development) team can implement the fixes.

## Questions

### How often should we run a technical SEO audit?

A full audit once or twice a year, plus monthly checks in Search Console, is enough for most small and medium sites. Audit before and after any redesign or migration.

### Can technical SEO alone improve rankings?

It removes obstacles. Rankings also depend on content quality, relevance and authority, so technical work is a foundation rather than the whole strategy.