Agent Nox – Technical SEO Audit

Nox inspects your site from top to bottom, identifies weaknesses that harm your rankings, and generates a detailed report with actionable recommendations for each issue.

Nox analyzes the HTML structure of your site

Nox performs a full technical audit of your site's HTML: error detection, SEO standards compliance, and issues impacting rankings. The analysis covers page indexing, title and meta tags, Hn hierarchy, 4xx/5xx errors and redirects, as well as robots.txt and sitemap.xml configuration.

Nox tests speed and performance

Nox tests your site like a real user, accurately measuring Core Web Vitals. It detects elements that slow down loading or pose security risks: unoptimized images, blocking scripts, poorly managed cache, mobile display issues, and SSL certificates.

Nox checks accessibility and indexing

Nox checks the accessibility of each page, the presence of sitemap.xml, and the absence of indexing errors. It verifies the validity of structured data, the implementation of canonical tags, the use of noindex/nofollow directives, and local optimization (NAP, Google My Business).

What Nox detects on your site

Nox identifies invisible technical errors that prevent your pages from reaching the first page of Google and gives you a prioritized action plan to fix them.

Prioritized technical audit

Nox generates a detailed report on the health of your SEO with a clear diagnosis of the technical and content issues to address as a priority.

Concrete action plan

For each detected issue, Nox gives you practical recommendations, ranked by impact, to improve your SEO performance page by page.

Continuous indexation tracking

Nox continuously monitors the indexation of your pages on Google and alerts you as soon as a page disappears, drops or encounters a technical problem.

Frequently Asked Questions

How to perform a free SEO audit of your site?

Nox performs a complete SEO audit of your site in just a few minutes. It analyzes the technical structure, content and performance of each page. You get a precise diagnosis with a detailed report of errors to fix, ranked by priority of impact on your ranking.

What technical errors harm a site's SEO?

The most common technical errors are: slow loading, missing or duplicate title/meta tags, 404 errors, redirect chains, missing sitemap.xml, indexing issues, and non-mobile-friendly content. Nox detects all these errors automatically.

What is the best technical SEO audit tool?

Nox stands out from classic tools because it does not just list errors: it prioritizes them by impact on your ranking and guides you step by step through the correction. It then continuously monitors your site to detect any new issue as soon as it appears.

How to check if your site is properly indexed on Google?

Nox automatically checks the indexing of every page on your site. He detects unindexed pages, pages blocked by robots.txt, forgotten noindex directives and crawl errors. You know exactly which pages Google sees and which are invisible.

How to get a complete SEO report for your site?

Create a Sedestral account and connect your site. Nox automatically launches a full audit: HTML structure, speed, indexing, tags, broken links and over 70 technical criteria. You receive a detailed report with actionable recommendations in minutes.

Why is my site not ranking on Google?

Several technical reasons can hinder your ranking: slow pages, misconfigured tags, duplicate content, indexing errors, or a failing internal linking structure. Nox precisely identifies what is blocking your site and gives you the steps to unblock the situation.

How often should you do an SEO audit?

Nox monitors your site continuously, no need to wait for a quarterly audit. As soon as a technical error appears, a page loses its indexing or a performance issue arises, you are immediately alerted to react before your ranking suffers.

How do you improve Core Web Vitals?

Core Web Vitals (LCP, INP, CLS) are essential performance indicators for Google. Nox automatically audits your pages and identifies the issues degrading these metrics: unoptimized images, render-blocking scripts, and layout shifts. It prioritizes fixes by impact and guides you through them step by step.

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