Crawlie vs SEO4Ajax

Crawlie is a technical SEO and GEO crawler that audits websites and offers guidance on addressing issues. It checks broken links, redirects, missing metadata, and more than 40 SEO and generative-engine issues. Each crawl returns distinct Health, GEO, and Accessibility scores, with output available in the terminal or as JSON, CSV, and shareable HTML reports. JavaScript rendering and structured data audits are supported. The open-source crawler includes an MCP server; the hosted service includes a hosted MCP server and REST API on every plan. Local options include an npm-installed CLI and MCP server, plus a signed macOS DMG for the desktop app. Hosted deploy-triggered crawls are documented for Vercel, alongside GitHub, Netlify, and custom CI hooks. The Free plan is free and includes 200 credits per month, three sites, one seat, and up to 1,000 pages per crawl. Pro is $29 a month; Business is $149 a month. Spronta Ltd makes Crawlie in London, United Kingdom.

SEO4Ajax uses dynamic rendering to make AJAX content visible to search engines and social networks. It can be configured on Apache, nginx, PHP, Java EE, Ruby, Python and Node.js servers, and supports frameworks including React, Vue.js, Angular, AngularJS, GWT, Ember and Backbone. The service says it can handle thousands or millions of pages without website code changes. Its REST API supports customization and automation, while a dashboard tracks bot activity, cache freshness, duplicates and broken links. SEO4Ajax caches snapshots, can capture inner links, and supports custom recache periods and email alerts for quota overages, scraping errors or unreachable websites. SEO reports flag indexing issues such as broken links, duplicates and invalid hreflang tags. The Developer plan is free, with 1,000 pages and 2,500 snapshots per month. Paid plans start at $29/mo (annual), and include email support at listed response times. The service is for business use, not personal, family or household use.