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SiteOne Crawler
Cross-platform audits for SEO, security and accessibility
PricingOpen Source
CategoryTechnical SEO
Latest releasev2.5.1
Launch dateJul 20, 2026
Overview
What is SiteOne Crawler?
SiteOne Crawler analyzes websites for technical SEO, security, accessibility and performance issues through a cross-platform CLI and desktop-friendly reporting workflow. Its documented capabilities include SEO and link audits, Security checks and Accessibility analysis.
SiteOne Crawler belongs in the diagnostic part of the SEO workflow. It helps teams move from a large set of URLs and technical signals to a smaller, prioritized set of issues that can be investigated and assigned.
Best forIn-house SEO teams, consultants and agencies responsible for site health.
Primary workflowTechnical auditing and diagnosis
Delivery modelOpen-source software with self-managed deployment options
Pricing modelOpen Source
Our test of SiteOne Crawler
Our test · SiteOne Crawler v2.5.1
- Input
- Local fixture, root URL; one worker, 2 requests/second, 30-URL cap.
- Observed result
- Visited 11 resources: 8 successful responses, 1 redirect and 2 missing resources. Reported a missing title, duplicate titles, a missing description and a noindex page.
- Limit
- The missing fragment was not reported in this run. HTTP-only loopback hosting also triggers findings that are irrelevant to a public HTTPS site.
Product gallery / 01
See SiteOne Crawler in context
Capabilities
What it helps you do
01
SEO and link audits
Use seo and link audits to turn site-level data into specific findings that can be reviewed, prioritized and handed to the person responsible for implementation.
02
Security checks
Security checks is one of SiteOne Crawler’s documented core capabilities. Its exact scope can vary by plan, deployment and integration, so validate it against the current product documentation.
03
Accessibility analysis
Accessibility analysis is one of SiteOne Crawler’s documented core capabilities. Its exact scope can vary by plan, deployment and integration, so validate it against the current product documentation.
04
Performance inspection
Performance inspection is one of SiteOne Crawler’s documented core capabilities. Its exact scope can vary by plan, deployment and integration, so validate it against the current product documentation.
Workflow
How SiteOne Crawler fits into the work
01
SEO and link audits
Use seo and link audits to turn site-level data into specific findings that can be reviewed, prioritized and handed to the person responsible for implementation.
02
Security checks
Security checks is one of SiteOne Crawler’s documented core capabilities. Its exact scope can vary by plan, deployment and integration, so validate it against the current product documentation.
03
Accessibility analysis
Accessibility analysis is one of SiteOne Crawler’s documented core capabilities. Its exact scope can vary by plan, deployment and integration, so validate it against the current product documentation.
Decision guide
What to know before choosing
A good fit when
- ✓You need support for Technical SEO and Crawler in a defined workflow.
- ✓You want inspectable source code and are comfortable owning setup, hosting or maintenance.
- ✓Your stack already includes or can work with Windows, macOS, Linux, CLI.
Verify before adopting
- →Confirm which capabilities are included in the current open source offering and whether usage limits apply.
- →Review the license, release activity, deployment requirements and ongoing maintenance ownership.
- →Validate the depth and scale of performance inspection for your team.
Verified reviews
What users say about SiteOne Crawler
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Categories
Practical questions
SiteOne Crawler FAQ
What is SiteOne Crawler?+
SiteOne Crawler analyzes websites for technical SEO, security, accessibility and performance issues through a cross-platform CLI and desktop-friendly reporting workflow. Its documented capabilities include SEO and link audits, Security checks and Accessibility analysis.
Who is SiteOne Crawler best for?+
In-house SEO teams, consultants and agencies responsible for site health.
How is SiteOne Crawler priced?+
The listed pricing model for SiteOne Crawler is open source. Confirm current terms and any usage limits on the official website before choosing.
What are the alternatives to SiteOne Crawler?+
See our Screaming Frog SEO Spider alternatives guide for a workflow-based comparison of 6 relevant products.
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