Checkbot vs SEO Crawler

Checkbot is a Chrome extension for auditing websites for SEO, speed, and security issues. Its checks can flag broken links, duplicate content, invalid HTML, and insecure forms. The crawler can examine hundreds of pages in minutes, while site structure information shows linked pages, image, JavaScript and CSS files, non-indexable pages, and redirects. It can also reach staging and local development sites, password-protected pages, and private networks. Crawling and other functions run locally on the user's machine; Checkbot says it does not operate as a web service. The free Basic plan allows 100 URLs per crawl, unlimited crawls and sites, with ads. Professional costs $10 a year, billed $120 per year, or $15 a month; it raises the crawl limit to 10,000 URLs and adds localhost crawling, PDF reports, CSV and bulk export, and HTTP Auth support. The extension runs on Windows, macOS, Chrome OS, and Linux, but does not execute JavaScript during crawls. Usage analytics and crash reports are opt-in.

SEO Crawler monitors website link health and technical SEO conditions. Its crawler checks broken links, SSL certificates, sitemap coverage, redirects, SEO signals, and orphan pages, and it can render JavaScript sites built with React, Vue, Next.js, or single-page applications. AI analysis can suggest redirect mappings and links for orphan pages, then score and prioritize issues. Paid plans support scheduled crawls, with email alerts for detected problems. Exports include CSV link data, PDF reports, and Markdown page-content files on Pro and Agency. Agency adds an API for programmatic crawls, result retrieval, domain-status monitoring, webhooks, and report exports. Crawling currently covers publicly accessible pages; login-protected areas are described as roadmap work. A crawl stops once its plan URL limit is reached and analyzes the pages collected so far. Plans are Free at free, Solo at $19 a month, Pro at $49 a month, and Agency at $149 a month. The product offers web and API access, with one domain and 100 URLs per manual crawl on Free.