Our Mission: Precision Without Paywalls
SEO Free was created to provide digital marketing professionals, webmasters, and developers with rigorous, standard-compliant technical SEO tools that operate transparently and accurately.
Many existing robots.txt testers rely on outdated parsing logic or arbitrary heuristics that fail to match actual crawler behavior. SEO Free implements the official RFC 9309 (Robots Exclusion Protocol) specification published by the Internet Engineering Task Force (IETF) in 2022, ensuring complete fidelity with modern crawlers including Googlebot, Bingbot, and AI user-agents.
Why We Built the Bulk Robots.txt Tester
Website migrations, architectural redesigns, and eCommerce parameter expansions frequently introduce unintentional crawl blocks. Testing one URL at a time is slow, while enterprise crawlers often require full-site scans to detect simple rule conflicts. Our Bulk Tester allows you to validate 100 paths in seconds, inspect the exact decisive rule and line number, test draft files before deployment, and export findings to CSV.
Core Principles
- RFC 9309 Accuracy: Strictly adhering to longest-match octet lengths and Allow-precedence on ties.
- Zero Dark Patterns: No registration required for core diagnostics. No fabricated rankings or misleading guarantees.
- Security First: Strict SSRF protection and sanitized processing of live and pasted files.