# Technical SEO audit https://seo7.es/en/servicios/seo/technical-seo-audit Updated: 2026-10-05 *Ranking on Google* We find everything blocking your site from ranking: speed, indexation, errors, duplicates and structure. A technical audit is the X-ray of your site before SEO work begins. We check Core Web Vitals, robots.txt, sitemap, redirects, mobile version and architecture. The output is a prioritised fix list with estimated impact on rankings. - **Core Web Vitals** We check LCP, CLS and INP: speed and stability signals that Google factors into rankings. - **Indexation and crawling** We find pages blocked from indexation and crawl errors robots cannot get through. - **Duplicates and redirects** We identify duplicate content, broken links and redirect chains that dilute site authority. - **Mobile version** We check Mobile-First Index: correct viewport, mobile speed and interface usability. ## Quick answer A technical SEO audit is a thorough review of the technical factors that affect Google rankings: page speed and Core Web Vitals (LCP, CLS, INP), correct robots.txt and sitemap, indexation, crawl errors, duplicate content, redirects and the mobile version. After the audit you get a prioritised fix plan with an estimated ranking impact for each point. Request a quote and we reply within 24-48 hours. Here we cover the technical SEO audit: what we check, why it matters for Google rankings and how we prioritise fixes. A technical audit is the foundation of any SEO campaign: without correct indexation, decent speed and a clean structure, even great content will not reach the top. By technical audit we mean checking Core Web Vitals and Page Experience, robots.txt and sitemap.xml files, indexation settings, crawl errors (4xx, 5xx), redirect chains, duplicate content, mobile adaptation and link structure. All of this determines how Googlebot crawls the site and how well pages enter the index. Below you will find the step-by-step audit process, a timeline reference, a table of audit blocks with their ranking impact and answers to common questions. At the end, our SEO packages with real prices and related services. ## How is a technical SEO audit carried out? ### Eight sequential steps from data collection to the fix plan The audit starts with data collection via Screaming Frog, Google Search Console and PageSpeed Insights, then we work through each technical block in sequence. For every issue we estimate the potential ranking impact and the effort to fix it, so the output is not just a list of errors but a ready-to-use action plan with priorities. 1. Crawl the site with Screaming Frog and collect all URLs, status codes and meta data. 2. Check robots.txt and sitemap.xml: blocked directories, incorrect directives and stale URLs. 3. Analyse Google Search Console: indexation errors, Mobile Usability warnings and Core Web Vitals. 4. Measure speed via PageSpeed Insights and Web Vitals: LCP, CLS and INP on mobile and desktop. 5. Find duplicates: URL parameters, www/non-www, http/https, trailing slash, duplicate title and description. 6. Check redirect chains and loops (301, 302), broken links (404, 410) and internal linking. 7. Check mobile adaptation: viewport meta, font sizes, tap target spacing and Core Web Vitals on mobile. 8. Produce a prioritised report: every issue with its estimated ranking impact and fix effort. ## What exactly does a technical SEO audit check? ### Four key blocks with measurable ranking impact The technical audit covers four main blocks: speed and Core Web Vitals, indexation and crawling, duplicates and redirects, and the mobile version. Each block affects how Googlebot crawls the site and how well pages enter the index. Ignoring any of them reduces site visibility regardless of content quality. **Technical SEO audit blocks and their impact** | Audit block | What we check | Ranking impact | | --- | --- | --- | | Speed and Core Web Vitals | LCP, CLS, INP; PageSpeed Score; compression, cache, critical CSS | Direct ranking signal; affects CTR and bounce rate | | Indexation and crawling | robots.txt, sitemap, noindex, 4xx/5xx, link depth | Pages outside the index do not rank at all | | Duplicates and redirects | Canonical, URL parameters, 301/302 chains, duplicate meta | Splits page authority; may trigger penalties | | Mobile version | Mobile-First Index, viewport, mobile speed, tap targets | Google indexes the mobile version first: errors here are critical | ## Why do Core Web Vitals matter for a technical SEO audit? ### Google has officially factored Core Web Vitals into rankings since 2021 Core Web Vitals are three page speed and stability metrics: LCP (largest contentful paint), CLS (cumulative layout shift) and INP (interaction to next paint). Google included them in the ranking algorithm as part of Page Experience signals. A site with poor Core Web Vitals loses to competitors in search results all else being equal, even if its content is stronger. A technical SEO audit always starts by measuring these metrics and finding the root causes of any failures. ### Expert opinion > Page experience signals, including Core Web Vitals, are used as a ranking factor. Technical site health is the foundation: without it, quality content does not reach the top. > > Google Search Central, Core Web Vitals and Page Experience documentation. Source: https://developers.google.com/search/docs/appearance/core-web-vitals ## In short: what a technical SEO audit delivers A technical SEO audit uncovers everything blocking Google from properly crawling, indexing and ranking your pages: Core Web Vitals issues, errors in robots.txt and sitemap, incorrect indexation, duplicates, redirects and the mobile version. Without fixing technical issues, any investment in content and links delivers less than it could. The output is not just a list of errors but a prioritised action plan with the estimated ranking impact of each fix. For most sites, resolving critical technical errors produces the first visibility shifts in 3 months. Request a quote and we will prepare your SEO plan within 24-48 hours. ## Frequently asked questions ### What is a technical SEO audit? It is a thorough review of the technical factors on your site that affect Google rankings: page speed, Core Web Vitals, correct robots.txt and sitemap, indexation, crawl errors, duplicate content, redirects and the mobile version. The output is a prioritised fix list. ### Why do you need a technical SEO audit if the site is already being promoted? Technical issues accumulate after CMS updates, redesigns and new content additions. Even if the site is being promoted, hidden errors (broken pages, slow loading or duplicates) prevent higher rankings. Periodic audits let you find and fix these issues in time. ### What are Core Web Vitals and why do they matter? Core Web Vitals are three Google metrics for page speed and stability: LCP (largest contentful paint), CLS (cumulative layout shift) and INP (interaction to next paint). Google has used them as a ranking signal since 2021. Poor Core Web Vitals lower rankings even with strong content. ### What is robots.txt and how does it affect SEO? robots.txt is a text file on the server that tells Googlebot which pages it can and cannot crawl. Incorrect configuration can accidentally block important sections from indexation or leave duplicate content open. Auditing robots.txt is one of the first steps of a technical check. ### What is the difference between a 301 and a 302 redirect? A 301 is a permanent redirect: it passes page authority to the new URL and is used when changing addresses. A 302 is temporary: it does not pass authority and can confuse Google when used long-term. Redirect chains slow down crawling and dilute link equity. ### What is duplicate content and how does it affect rankings? Duplicate content is identical or very similar pages accessible from multiple URLs (for example, with parameters, www and non-www, http/https). Google does not know which version to rank and splits authority between the duplicates. It is resolved via canonical tags, 301 redirects and correct URL parameter configuration. ### Why does the mobile version matter for SEO? Since 2020 Google uses Mobile-First Indexing: the main index is built from the mobile version of the site. If the mobile version is slow, displays incorrectly or contains less content than the desktop version, this directly lowers search rankings. We test the site on real phones, not only in an emulator. ### How long does a technical SEO audit take? For a site up to 500 pages, 3-5 business days. For large sites over 5,000 pages, 7-14 days. Timelines depend on site size, the number of technical issues and access to Google Search Console. After the audit we deliver a report with a prioritised fix plan. ### What is included in a technical SEO audit report? The report includes: a list of all technical errors found with descriptions and screenshots, an impact assessment for each issue (critical / medium / low), fix recommendations with specific technical instructions, and a prioritised action plan with the order of fixes. ### In which languages do you conduct the SEO audit? We carry out the audit and report in Russian, Spanish and English, the studio's three working languages. Documentation and recommendations are delivered in your preferred language. Support and calls too. Technical terms in the report are explained in plain words.