Crawlix vs SEO4Ajax

Crawlix is a desktop SEO crawler for auditing websites across technical SEO, content, performance, and accessibility. It lists 102+ checks across nine categories, including links, images, structured data, security, and international SEO. Chromium-based rendering supports JavaScript-heavy sites and detects frameworks including React, Vue, Angular, Next.js, Nuxt, Gatsby, and Svelte. Crawlix checks 13 AI crawler directives and can generate robots.txt and llms.txt templates. Crawl data is stored locally in SQLite, and earlier crawls can be reviewed offline. The Free plan includes all checks, one project, and up to 100 pages per crawl with no time limit; CSV and JSON exports are available on that tier. PDF and Excel exports are Pro features. Crawlix runs on Linux and Windows. Pro costs $15 a month, and Agency costs $45 a month; Agency allows unlimited pages and projects. Free and Pro licenses are for one device, while Agency allows five; licenses are tied to a device, and transfers require contacting support.

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.