CrawlZilla vs DefiniteSEO
CrawlZilla
crawl-zilla.com
DefiniteSEO
definiteseo.comSide by side
| Figure | CrawlZilla | DefiniteSEO |
|---|---|---|
| Price from | Free | $1.66/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 27 |
| Spec score · SEO tools | 8.1 (#71) | 9.2 (#9) |
| API access | Yes | 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. |
| Free plan | Yes | Yes |
| Integrations | The Enterprise plan lists custom API integrations; no named third-party integrations are stated on the pricing page. | The plugin supports WordPress themes and builders including Elementor, Gutenberg and Classic Editor, plus WooCommerce. |
| Product | CrawlZilla is a cloud-based SEO crawler for technical SEO analysis. | DefiniteSEO combines a WordPress SEO plugin with online tools for site audits, AI visibility, backlinks, and AI writing. |
| Support | The homepage says no software installation or server management is required. | Listed support ranges from community support on the free audit plan to email, priority email, or priority support on paid tiers. |
Plans
CrawlZilla
- FreeFree
- LitePrice not published
- Premium£39.99 a month
- FreeFree
- Premium£39.99 a month
- Ultimate£79.99 a month
- EnterprisePriced on request
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
CrawlZilla
CrawlZilla is a cloud-based SEO crawler for technical site analysis, available on the web and through an API. Its Spider, List and Subdomain modes can crawl HTML, images, JavaScript, CSS and PDFs. Each URL can include more than 40 data points, such as titles, canonicals, hreflang, schema and Open Graph information. An internal-link graph tracks links to help identify orphan pages and show PageRank flow; headless Chrome renders JavaScript pages. Lighthouse audits report Performance, Accessibility, Best Practices and SEO scores, plus Core Web Vitals. Page Monitor checks URLs on a chosen schedule, detects changes across 12 or more SEO fields and can send email alerts. Its REST API uses HTTPS, returns JSON and authenticates with bearer tokens. The free plan allows 10,000 URLs per session, 10 requests per second, three Lighthouse audits per crawl and 20 monitored URLs. Premium is £39.99 a month, with limits of 1,000,000 URLs per session, 20 requests per second, 10 Lighthouse audits per crawl and 500 monitored URLs. The maker says its distributed cloud infrastructure supports crawls of 100 million or more URLs and requires no installation or server management.
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.