DefiniteSEO vs SiteOne Crawler
DefiniteSEO
definiteseo.comSiteOne Crawler
crawler.siteone.ioSide by side
| Figure | DefiniteSEO | SiteOne Crawler |
|---|---|---|
| Price from | $1.66/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 27 | 2 |
| Spec score · SEO tools | 9.2 (#9) | 8.0 (#93) |
| API access | The maker says users do not need their own AI account or API keys; the documentation references plugin REST routes rather than a separately documented public SaaS API. | Yes |
| Audience | The maker describes the product as serving website owners, WordPress users, SEO professionals, and agencies. | The maker identifies website owners, developers, QA engineers, administrators, DevOps practitioners, and consultants as intended users. |
| Free plan | Yes | Yes |
| Support | Listed support ranges from community support on the free audit plan to email, priority email, or priority support on paid tiers. | The maker lists GitHub Issues for bugs and feature requests and GitHub Discussions for questions and discussion. |
Plans
DefiniteSEO
- Free (WordPress Plugin)Free
- Solo$59.88 a year
- Business$239.88 a year
- Agency (WordPress Plugin)$479.88 a year
- Free (SEO Audit SaaS)Free
- Starter$178.80 a year
- Pro$598.80 a year
- Agency (SEO Audit SaaS)$1,198.80 a year
- Managed Pro$19.90 a year
- Free (SEO Audit SaaS)Free
In their own words
DefiniteSEO
DefiniteSEO brings WordPress SEO tools together with an online audit service for examining site health, AI-search visibility, backlinks, and content. Audits cover technical and on-page SEO, content, links, security, performance, accessibility, and DNS, with fixes prioritized. Its AI-visibility tools check whether ChatGPT and Google AI Overviews cite a site and assess pages for readiness for AI search. The WordPress plugin can apply individual or bulk fixes, schedule automated changes, and reverse changes within 30 days. It works with Classic Editor, Gutenberg, Elementor, and WooCommerce, and can import settings from Yoast or Rank Math. The AI SEO Writer can publish to WordPress or provide content for another CMS. Free options include an unlimited-sites plugin and an audit plan for one project and 50 pages per month. Paid plans are listed from $4.99/mo (annual). The audit service is not a standalone classic rank-tracking or keyword-research suite.
SiteOne Crawler
SiteOne Crawler is a free website crawler and audit tool that examines SEO, performance, accessibility, security, best practices, and content. It produces an interactive HTML report or text and JSON output, and assigns a quality score from 0.0 to 10.0 across five areas: performance, SEO, security, accessibility, and best practices. It can save a static copy of a website for offline browsing, turn a whole site into Markdown, and generate llms.txt. An optional Chromium mode renders JavaScript-driven pages before crawling. The native Rust binary runs on Windows, macOS, and Linux, with desktop and command-line variants; it has no runtime dependencies. API access and self-hosting are also listed. A CI/CD quality gate offers configurable thresholds, JUnit XML, GitHub annotations, and exit code 10 when checks fail. Reports can be shared through a free service using secure URLs with optional expiration and password protection. The default crawl uses three workers and no more than 10 requests per second combined. Plans are listed at free.