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SpiderHead vs SEOnaut

Both are open source and MIT-licensed. SEOnaut is a self-hosted web dashboard (Go and MySQL) with issues grouped by severity; SpiderHead is a crawler and audit toolkit with a desktop app, a CLI and a local MCP server.

Checked 21 October 2026 against each vendor's own public pages. Sources below.

SpiderHead

Open-source crawler and audit toolkit

Free and open source; no paid tierRuns on your machine

SEOnaut

Open-source web-based SEO auditing tool (self-hosted or hosted)

Free MIT self-host; hosted Growth $9/monthRuns on your machine

Compatibility at a glance

SpiderHead scores 71 on coverage and 83 on automation; SEOnaut scores 8 and 25. Both out of 100, counted from the table.

Out of 24 capabilities we compare for every tool.

7both have
17only SpiderHead
0only SEOnaut

Market map

Crawl, audit and data coverage / Automation and AI agents: SpiderHead 71·83, Screaming Frog 92·75, Sitebulb 88·58, Ahrefs Site Audit 75·75, Semrush Site Audit 63·75, SEOnaut 8·25, LibreCrawl 29·50, advertools 21·2500252550507575100100Crawl, audit and data coverage →Automation and AI agents →SpiderHeadScreaming FrogSitebulbAhrefs Site AuditSemrush Site AuditSEOnautLLibreCrawlAadvertools
Scores are counted from the table: yes = 1, partly = ½, no or not found in public docs = 0, as a share of the rows on each axis. Horizontal: Crawl, audit and data coverage (12 rows). Vertical: Automation and AI agents (6 rows). Hover or focus a marker for the breakdown; click to keep it open.

Coverage by group

Share of rows each tool covers in a group, 0–100, counted from the table below.

100Price and setup5 rows90
100Interfaces2 rows0
75AI agents and integrations2 rows0
67Crawl3 rows33
80Audit5 rows0
63Data sources4 rows0
100Reports and follow-up3 rows17
83Overall24 rows25

Using both

There is no direct integration. Both crawl on your own infrastructure; SEOnaut's public docs do not describe exports or an API that SpiderHead could read.

Side by side

CapabilitySpiderHeadSEOnaut
Price and setup
Free to useYes: Free and open source; no paid tierYes: Free MIT self-host; hosted Growth $9/month
Open sourceYes: Core MIT; Desktop GPL-3.0-or-later (PyQt5)Yes: Yes, MIT licence (LICENSE file / README)
Runs on your machineYes: Crawl and storage run on your machineYes: Self-hosted via Docker; hosted version also exists
Works without an accountYes: No account; no hosted servicePartly: Sign-in in the web app; hosted needs sign-up
Free tierYes: No licence cap; default crawl cap 200 URLsYes: Hosted Lite: 1 project, 500 URLs; self-host: none stated
Interfaces
Desktop appYes: PyQt5 app: macOS, Windows, LinuxNo: Web app run via Docker, no native app
Command lineYes: seohead CLI, 230 commandsNot found in public docs: Not found in public docs
AI agents and integrations
MCP server for AI agentsYes: Local stdio server, 246 toolsNot found in public docs: Not found in public docs
APIPartly: Python API; optional self-hosted job APINot found in public docs: Not found in public docs
Crawl
JavaScript renderingPartly: Optional Playwright extra; raw HTML by defaultNot found in public docs: Not found in public docs
Scheduled crawlsPartly: Writes launchd/cron/Task Scheduler trigger; no daemonYes: Hosted Growth lists recurring audits
Custom extractionYes: Declarative extraction rules and content selectorsNot found in public docs: Not found in public docs
Audit
Audit checksYes: 280 checks (generated registry, CHECKS.md)Not found in public docs: No count published; issues in 3 severity levels
HreflangYes: hreflang-check plus hreflang audit checksNot found in public docs: Not found in public docs
Structured dataYes: schema-check/schema-build and Schema.org checksNot found in public docs: Not found in public docs
Core Web Vitals / LighthousePartly: Lab render-check, CrUX field data; Lighthouse JSON suppliedNot found in public docs: Not found in public docs
AccessibilityPartly: Static a11y checks only (lang, labels, alt)Not found in public docs: Not found in public docs
Data sources
Google Search ConsoleYes: Search Console via provider (OAuth/service account)Not found in public docs: Not found in public docs
Google Analytics 4Partly: Landing pages and page views via provider callsNot found in public docs: Not found in public docs
Backlink dataPartly: Donor-list verification and CSV import; no own indexNot found in public docs: Not found in public docs
Keyword dataPartly: Via external providers (Wordstat, Arsenkin, DataForSEO)Not found in public docs: Not found in public docs
Reports and follow-up
Report exportsYes: XLSX, DOCX, CSV, Markdown, JSON, PDF overviewPartly: Report export mentioned; formats not named
Task list and fix recheckYes: Task backlog, verify-fixes, remediation ledgerNot found in public docs: Not found in public docs
Reads Screaming Frog exportsYes: Screaming Frog CSV/XLSX export analysisNot found in public docs: Not found in public docs
yespartlynonot found in public docs

Where each one is stronger

SpiderHead

  • 280 published checks, each reporting a finding, clean, skipped or failed.
  • A desktop app, a CLI with 230 commands and a local MCP server with 246 tools.
  • Reads Screaming Frog exports and joins Search Console data.
  • Report exports (XLSX, DOCX, CSV, PDF) and a task backlog with fix rechecks.

SEOnaut

  • Ships as a ready web dashboard with charts and issues grouped by severity, with no scripting needed
  • MIT-licensed code that can be self-hosted with a Docker compose file
  • Offers an optional hosted version with team collaboration and recurring audits
  • Stores crawl results in MySQL, which suits a persistent multi-project web interface

Questions

Is SEOnaut free?
The community edition is open source under the MIT licence and can be self-hosted. The hosted service lists a free Lite plan (1 project, 500 URLs) and a Growth plan at $9/month on its site as of 2026-10-21.
What does it need to run?
The README recommends Docker: the app image plus a MySQL 8.4 container, served on port 9000 by default. The app is written in Go.
Does it have a CLI or API?
The README and site do not describe a command-line interface, public API or MCP server.

How we compared

  • Every cell comes from the vendor's own public pages (product, documentation, pricing, release notes, repository) on 21 October 2026.
  • “Not found in public docs” means we could not confirm it from an official source, not that the feature is missing. Charts count it as 0.
  • Prices and plans change. Check the vendor's pricing page before you buy.
  • Spotted something out of date? Tell us and we will correct it.

Sources

SEOnaut is a trademark of SEOnaut project (open source). Names and icons identify the products compared; SpiderHead is not affiliated with, endorsed or sponsored by SEOnaut project (open source). Owners can ask us to remove an icon via contact.

More SEOnaut comparisons

Screaming Frog vs SEOnautOpen-source web-based SEO auditing tool (self-hosted or hosted)Sitebulb vs SEOnautOpen-source web-based SEO auditing tool (self-hosted or hosted)Ahrefs Site Audit vs SEOnautOpen-source web-based SEO auditing tool (self-hosted or hosted)Semrush Site Audit vs SEOnautOpen-source web-based SEO auditing tool (self-hosted or hosted)SEOnaut vs LibreCrawlOpen-source web-based SEO crawler (self-hosted)SEOnaut vs advertoolsPython library with a Scrapy-based SEO crawlerAll tools, one table8 SEO crawlers and audit tools

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