SEOnaut review (2026): is the free plan enough?
Open-source SEO site audit tool, self-hosted or in the cloud
SEOnaut report card
Fair · out of 4.0 · graded Oct 23, 2026
Best for budget site audits, hosted or on your own server
SEOnaut crawls a site and sorts what it finds, from broken links and redirect loops to hreflang and canonical errors, into critical, high and low, with history on a dashboard. The hosted free plan stops at 1 project of 500 URLs, Growth at $9 a month stops at 5 projects of 10,000, and running it yourself means Docker or Go plus MySQL.
Who SEOnaut is for
- Fits if your site fits in 500 URLs and you want a free hosted crawler
- Works for teams that want to run their SEO crawler on their own server
Who SEOnaut is not for
- Tight if you outgrow Growth's 5 projects of 10,000 URLs, as more means emailing the developer
- Watch out: self-hosting needs Docker or Go plus MySQL, and HTTPS through a reverse proxy
- Not for you if you want support beyond email, as self-hosted copies go through GitHub Issues
- Skip it if you want free audits on a schedule, as only the paid Growth plan lists recurring audits
Why SEOnaut gets a 2.4
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- BValue for moneyGrowth is $9 a month for 5 projects of up to 10,000 URLs each, inside this category's cheaper quarter of $13, and a yearly plan gives one month free. The free self-hosted edition needs a server of your own.
- BFree plan and trialThe hosted Lite plan is free with no card: 1 project of up to 500 URLs, crawled when you ask. A small site can live on that, though recurring audits are Growth only.
- CFeaturesIssues ranked by severity, title, heading, hreflang, image, canonical and thin-content checks, orphan pages, history charts and WACZ archives. The gaps: the listing records no JavaScript rendering, Search Console data or API, and hosted plans stop at 10,000 URLs a project.
- CEase of useNo rating on record. The hosted version means an account and a project before the first crawl; self-hosting needs Docker or Go, MySQL and a reverse proxy for HTTPS.
- CPlatforms and integrationsWeb only, with a Docker image for running it yourself. No API, integrations, desktop or phone app on record.
What these grades rest on. Graded from this listing, whose facts were read from SEOnaut's own pages on 23 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/seonaut#review"><img src="https://toolgpa.com/badge/seonaut.svg" alt="SEOnaut: 2.4 GPA on ToolGPA" width="196" height="56"></a>Where SEOnaut stands among technical SEO tools
SEOnaut's GPA of 2.4 is higher than 41 of the 83 other technical SEO tools we grade, and level with 14.
It stands best on free plan and trial (B, above 51 of 83) and worst on platforms and integrations (C, above 3).
Its paid plans start at $9 a month, against a middle price of $22.41 for the category: 6 of the 52 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. 14 tools score higher and cost less.
Each grade against the category
Every bar is all 84 technical SEO tools we grade, cut by the letter each got. SEOnaut’s own letter is outlined.
- BValue for moneyAbove 43 of 83, level with 10
- BFree plan and trialAbove 51 of 83, level with 10
- CFeaturesAbove 10 of 83, level with 66
- CEase of useAbove 7 of 83, level with 54
- CPlatforms and integrationsAbove 3 of 83, level with 23
Price against what you get
Each dot is one of 73 technical SEO tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep SEOnaut, or make your own?
Your call
SEOnaut sits between: not beyond making, and not a weekend's work either.
What you would give up is listed below. Whether that is worth the price is your call. It costs $108 a year. SEOnaut is open source, so there is a third way: take its code and run it yourself.
What you could make
- It runs in a browser, which is where something home-made would run too.
What you could not
- A crawler that checks every page of a site.
What this rests on. SEOnaut’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is SEOnaut?
SEOnaut is an MIT-licensed technical SEO auditor that crawls a website and sorts the problems it finds into critical, high and low severity. It checks links, redirects, meta tags, headings, hreflang, images, canonicals and HTTPS, and shows the results on a dashboard with history over time. It can be run on your own server with Docker or used as a hosted service with a free plan and a $9 monthly plan.
Worth knowing
- The hosted Growth plan stops at 5 projects and 10,000 URLs each; larger needs are handled by emailing the developer.
- Self-hosting needs Docker or Go plus a MySQL database, and the project recommends adding HTTPS through a reverse proxy.
- Support is by email for the hosted service and through GitHub Issues for self-hosted copies; there is no forum.
- Of the hosted plans, only the paid Growth plan lists recurring audits; Lite crawls run on demand.
Key features
- Issues ranked by severity
- Each crawl produces a report that groups problems as critical, high or low, from broken links and redirect loops to duplicate titles and descriptions.
- On-page and content checks
- Audits titles, descriptions, heading order, hreflang tags, image alt text and file size, thin or duplicated content, canonicals and HTTP pages.
- Crawl settings
- The crawler can ignore robots.txt, follow nofollow links, include sitemaps and subdomains, check external links and log in to staging sites with HTTP Basic Auth.
- Site structure and dashboard
- Spots orphan and dead-end pages, checks response time and timeouts, and charts site health over time on a visual dashboard.
- WACZ archives
- Saves a crawled site as a WACZ web archive, keeping pages and assets for offline review or record-keeping.
- Self-hosting with Docker
- Written in Go with a MySQL database; the project publishes a Docker image and a Docker Compose file, and the interface can be translated.
SEOnaut pricing
As of Oct 23, 2026, SEOnaut has a free plan, and paid plans start at $9 per month, billed monthly.
- Starts at
- $9 per month, billed monthly
- Free plan
- Lite plan on the hosted service: 1 project and up to 500 URLs per project, no credit card. The self-hosted Community edition is free with no plan limits.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Community | $0 | The open-source edition under the MIT license, which you host and manage yourself on your own infrastructure. |
| Lite | $0 | Cloud hosted: 1 project with up to 500 URLs per project. No credit card required. |
| Growth | $9per month for 5 projects of up to 10,000 URLs each | Cloud hosted: 5 projects, 10,000 URLs per project and recurring audits. An annual plan gives one month free. |
Read from seonaut.org on Oct 23, 2026. Prices change, so confirm with SEOnaut before you buy.
Ways to pay less
- Annual discountOne month free with annual billing
SEOnaut's pricing FAQ says the annual plan gives one month free compared with paying monthly.
Stated on seonaut.org
Works with
- Docker
- MySQL
SEOnaut alternatives
- SEOnaut vs Screaming Frog SEO Spider
Free plan · from $279/yr
- SEOnaut vs Sitebulb
Free trial · from $18/mo
- SEOnaut vs SiteGuru
Free plan · from $39/mo
Common questions
Does SEOnaut have an Android app?
No Android app was listed when its pages were read on Oct 23, 2026. SEOnaut is listed for Web.
Does SEOnaut have an iPhone app?
No iPhone app was listed when its pages were read on Oct 23, 2026. SEOnaut is listed for Web.
Is SEOnaut open source?
Yes. SEOnaut is open source, according to its own site. It can also be run on a server of your own.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 23, 2026.