--- title: "Technical SEO Agency: Audit, Crawl, and Performance" url: "https://astrak.agency/en/technical-seo-agency/" lang: "en-US" --- # Technical SEO Agency We make sure your site is technically readable by Google Technical SEO means transforming your site into a healthy, fast and perfectly readable base for Google and the AIs, so that your content and authority can finally express their full potential. [Book a meeting](https://astrak.agency/en/contact/)[See our case studies ](https://astrak.agency/en/case-studies/) Your team **13 SEO & GEO experts** : the consultant is chosen to fit your project. - **4,9/5** from more than 50 verified reviews - **+100** clients served - **30 minutes** for a first meeting, no commitment [Meet the team ](https://astrak.agency/en/equipe/) Trustup Interflora Kowee PLACE OF THE DAY Sixty8 Findymail Bonus Time mybrocante Trustup Interflora Kowee PLACE OF THE DAY Sixty8 Findymail Bonus Time mybrocante ## What is technical SEO? Good content is not enough if Google can't understand it, crawl it and index it properly. Technical SEO consists in removing all the invisible brakes that prevent your site from expressing its full potential: indexing errors, duplication, poor URL management, badly configured redirects or confusing architecture. Our role is to build a healthy and coherent technical foundation, so that each important page is correctly explored, understood, and valued by Google and that your content and link-building efforts finally produce measurable results. ## Technical SEO: What we do ### 1. Full technical SEO audit Crawl, analyze GSC, HTTP Status, Autogenerated Pages, Redirects, Duplicate Content, Cannibalization, XML Sitemap & robots.txt, URL Architecture & Structure, Internal Linking, JS and Rendering. EVERYTHING IS COVERED. ### 2. Prioritization & Action Plan We prioritize actions by time/impact: **Critique** crawlability, indexability, site-wide **Moderate:** templates, categories, listings **Low :** isolated low-impact points Audit Action Plan Traffic ### 3. dev-ready« recommendations» We translate SEO into developer language so your developers can easily implement it. We can have live calls with your developers. If you don't have in-house developers, we work with our trusted development partners. \# robots.txt User-agent: GPTBot User-agent: ClaudeBot User-agent: Applebot Allow: / ### 4. Monitoring & validation & Anticipation • Post-release verification (crawl + GSC) • Quality control: canonicals, redirects... - Adjustments until stabilized ## Your SEO is blocked by technical issues if... - Google indexes URLs with unwanted parameters or versions - Your important pages are “Crawled - currently not indexed”.” - You have 404/soft 404 or poorly managed discontinued products - Your redirects are creating infinite loops (or JS). - Canonical ignored or inconsistent (Google chooses another page) - Sitemap/robots.txt send mixed signals - Staging or test pages are accessible / indexed - Your internal linking isn't pushing your money pages enough. - Your site is not visible or understandable without JavaScript ## The pillars of Technical SEO Crawl& Indexing Architecture & mesh internal URLs, duplicates & canonical Performance & Core Web Vitals Data structured Mobile & UX technique Monitoring & logs SEO JavaScript & rendering [ Book a meeting ](https://astrak.agency/en/contact/) ## They trusted us. #### Hugo ELIKI ROMAN Assistant Rénov «We worked with Astrak for the initial SEO investments for our Assistant Rénov website. Astrak thoroughly understood the specifics of our business and was able to propose a relevant SEO strategy that showed promising results in terms of rankings and lead volume. Beyond the overall strategy, Léo and his team also helped us with small technical details related to the site, always with responsiveness. In short, serious contact persons and a smooth and effective collaboration. We recommend them!» HE ##### Hugo ELIKI ROMAN Assistant Rénov #### Damien Soulages Professional Trainer – Formip «The results exceeded our expectations. Right from the initial audit, we identified and corrected numerous critical technical errors that we hadn't detected internally - with immediately visible results on our performance. Over and above this technical correction, we now have a genuine publication strategy structured around strategic keywords, enabling us to gradually improve our reputation and positioning in the search results. We finally have a clear roadmap for our SEO development.» DS ##### Damien Soulages Formip ## Our technical SEO case studies Three sites where technology made all the difference, without pulling the content lever. ![Trackstone Website Homepage](https://astrak.agency/wp-content/uploads/2026/07/use-case-trackstone.jpg) Finance · Rental Investment ## [Trackstone: Records Broken After a Google Update](https://astrak.agency/en/trackstone/) See the case study ![MyBrocante Website Homepage](https://astrak.agency/wp-content/uploads/2026/07/use-case-mybrocante.jpg) Marketplace · Flea market vendor spots ## [MyBrocante: from 1,000 to 70,000 organic visits a month in 9 months](https://astrak.agency/en/mybrocante/) See the case study ![Mon Ombrage Website Homepage](https://astrak.agency/wp-content/uploads/2026/07/use-case-ombrage.jpg) E-commerce · Network of 5 sites, 3 countries ## [6x SEO traffic on a network of 5 netting and mesh stores](https://astrak.agency/en/ombrage-use-case/) See the case study ## FAQ – Technical SEO Agency Why Use a Technical SEO Agency? Engaging a technical SEO agency allows you to identify and correct the invisible obstacles that prevent a website from being properly crawled, indexed, and valued by Google. Unlike editorial SEO or link building, technical SEO operates on the website's foundations: architecture, indexing, URL management, redirects, performance, and internal linking. A technical SEO agency doesn't just identify errors: it prioritizes actions, writes actionable recommendations for developers, and ensures that each fix actually improves the site's visibility and SEO performance. Why conduct a technical SEO audit? A technical SEO audit is essential to understand why a site isn't performing despite good content or a strong linking strategy. In particular, it enables you to : - detect crawl and indexing issues, - identify canonization or duplication errors, - Analyze redirects, HTTP statuses, and crawl budget waste., - evaluate site structure and internal linking, - identify performance or mobile compatibility problems. A technical SEO audit provides a clear, prioritized, and actionable overview of everything that's hindering your organic growth. What tools does a technical SEO agency use for an SEO audit? A technical SEO agency relies on several complementary tools to analyze a website in depth, including: - SEO crawlers (URL analysis, HTTP statuses, canonicals, internal linking), - Google Search Console (indexing, exclusions, crawling, Google signals), - performance tools and Core Web Vitals, - desert [Server and logs analysis](https://astrak.agency/en/seo-log-analysis/) (depending on the projects), - manual testing (inspection of HTML code, rendering, JavaScript, redirections). Tools alone are not enough: it's the interpretation and prioritization of data that make the difference between a simple report and real SEO leverage. Why entrust your technical SEO to an agency rather than a tool? SEO tools detect signals, but they don't make decisions. A technical SEO agency analyzes context, site size, business objectives, and technical constraints to: - distinguish real problems from false positives, - prioritize actions according to real SEO impact, - avoid unnecessary or risky corrections, - Translate the recommendations into developer-friendly language. Poorly executed technical SEO can block indexing or degrade performance. An agency limits these risks. Do you do your own technical SEO patches? We can intervene in several ways, depending on your organization: - Deliver “dev-ready” specifications (user stories, acceptance criteria, clear technical rules)., - Manage the implementation with your in-house developers or your service provider, - Intervene via a partner developer if you don't have the technical resources. In all cases, we ensure quality control and SEO validation after implementation. How long does it take to see results from technical SEO? The first effects of technical SEO often appear quickly: - Improve crawling and indexing in a few days or weeks, - Short-term signal stabilization (canonicals, redirects, sitemap). Gains in rankings and traffic then depend on the speed of implementation, the volume of pages concerned, and competition for the targeted keywords. Technical SEO creates the conditions for sustainable growth, but it must be combined with content and an overall strategy. ## Ready to propel your Visibility on Google? Start with a free SEO diagnostic and discover your growth potential [Book a meeting](https://astrak.agency/en/contact/) ## Let’s book a first meeting 30 minutes with Léo, our founder: we look at your Search Console and tell you what we would do. No commitment. [Calendar not displaying? Book your slot here](https://meetings-na2.hubspot.com/leo-poitevin?utm_source=website-offre-lien)