CrawlZilla vs Rank Math SEO

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.

Rank Math SEO is a WordPress plugin for search optimization, with content suggestions, indexability controls, structured data, and performance tracking. It includes keyword research, rank tracking, site audits, and competitor research. Its built-in analysis checks 30 SEO factors, and users can enable and configure more than 15 modules. Structured data support covers more than 20 Schema types, including FAQ and HowTo. A Google Search Console integration displays keyword performance and click-through rates in WordPress admin, and the plugin works with Gutenberg and Classic Editors. Content AI offers more than 40 tools and can generate SEO-oriented content within WordPress; AI Link Genius suggests internal links and can identify orphan pages and broken links. Rank Math AI tracks brand mentions and visibility across ChatGPT and Gemini, with additional platforms described as coming soon. The Free plan is listed at free, and a free trial is available. PRO includes 500 tracked keywords and unlimited personal websites, while Business and Agency list 100 and 500 client websites, respectively.