web-resource-checker

Validate sitemap.xml and robots.txt by running the checker against your site or local files—it enforces structural requirements like correct root elements, required fields, absolute URLs, and encoding to surface compliance issues with actionable fixes.

Audit sitemap.xml, robots.txt, llms.txt, llms-full.txt, and security.txt files. The checker validates each against official specifications, reports severity-based issues, and outputs both machine-readable JSON and human-readable formats for quick remediation.

Run validation on both live sites and local copies. Pass a URL like https://example.com or a local path like ./public to check resources in place, then review JSON or human-readable reports to identify and fix configuration errors.

Security.txt helps disclose security policies and contact information to researchers. Validation ensures it follows specification requirements—correct placement, required fields, and format—reducing missed security disclosures and improving incident response readiness.

The checker detects structural violations—missing elements, invalid URLs, encoding problems, and size limit breaches—and returns severity-flagged issues with concrete guidance so you fix indexing, crawling, and security risks before they impact SEO or accessibility.

No dependencies required. Run npx web-resource-checker against a live domain or local directory to immediately validate resources and receive structured reports identifying compliance gaps and fixes.