Open Source SEO Tool

Detect the issues that are preventing your website from reaching the top results

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SEOnaut technical SEO report

Crawl & Analyse

Crawl your website and analyze it in a comprehensive and actionable report

SEO Technical Audit

SEOnaut is a technical audit tool that can crawl and analyse your website in search of issues that are hurting your search engine rankings. The result is a comprehensive report of your website's current status with a prioritized list of the issues found.

Actionable insights

The issues in your website are reported in a list prioritized and segmented into three categories according to their severity. From critical issues preventing your website from being crawled by search engines to notices that can guide you in the right direction to improve your ranking.

Understand your URLs

The URL explorer presents all the information you need to know about your URLs. Find out how many stylesheets a URL uses, where it links to and from where it is linked, check if it is a canonicalized URL and understand what role it plays in the whole picture before making a change that could affect your SEO.

Information is key

Communication is crucial for any technical SEO project and everyone needs to be on the same page. Export the URLs that are affected by issues so developers know what needs to be fixed or download the charts generated by SEOnaut to easily share them with clients and team members.

SEOnaut technical audit

SEO Technical Audit

Uncover your website's technical SEO secrets

SEOnaut technical SEO report

Crawl on demand

Crawl your websites on demand when you need it and get the results in minutes. Set the crawler options to ignore the robots.txt on your staging servers, follow nofollow links to get a full overview of your website or include noindex pages in your reports.

SEOnaut SEO projects

Visual overview

The dashboard offers a visual overview of your website's last crawl, making it easy to understand its current status and follow its evolution over time. Super-charged with downloadable charts that can be inserted in your presentations and shared with clients.

Technical SEO is the backbone of your website

Wether you are building a new website or putting up a tricky migration a single technical issue can cripple your search engine rankings.


What is technical SEO?
Technical SEO is the process of optimising a website to help search engines crawl, interpret, and index its contents. It takes care of the more technical aspects of SEO projects, like finding and fixing technical issues, delivering fast loading pages, taking care of redirections and site migrations, configuring robots, setting up sitemaps or solving canonical conflicts.
How much does SEOnaut cost?
SEOnaut is free and open source software under the MIT license. This allows anyone to download, use and modify it without restrictions. offers hosted version of SEOnaut with a free plan as well as a $9/month subscription based plan.
What are the limitations of the free plan?
With the free plan anyone can manage 1 project and the crawler is limited to 150 URLs. The subscription plan increases the limits to 5 projects and up to 5000 crawled URLs per project. Send me an email if these plans don't suit your needs, we may be able to work something out.
How often can I crawl my website with SEOnaut?
There's no limit on how often you can crawl your website with SEOnaut. It doesn't limit by the number of crawls you can run either, just crawl on demand as you need it.
SEOnaut lacks a feature I need, can you add it?
Don't hesitate to send a feature request. SEOnaut is in a very early stage and is undergoing heavy development with new features and improvements being rolled out very often.
I need to install or customize SEOnaut, can you help?
Get in touch.

Open Source SEO Tool

Own your tools

SEOnaut is an open source SEO tool. The code is available under the MIT license, which allows anyone to self-host and modify it without any kind of restriction. You can check out the code at the public Github repository and file in issues or pull requests for new features.