JustHandled Labs
// free utility

Robots Sitemap Validator

Check your robots.txt and sitemap.xml for the mistakes that quietly block crawlers, and never touch the live site.

What it flags

How to run

Point it at the files or paste them in. Read-only, no network.

Good to know

It validates the files you give it and does not crawl or render the live site.

Use the full crawlability preflight to align the local files with live responses, canonical URLs, noindex rules, and Search Console evidence.

// independent directory review

Skillstore labels the reviewed package Safe

Skillstore’s versioned audit reports no confirmed security findings across the same four files linked from this page.

This is review evidence, not a guarantee of no side effects. Read the full Skillstore audit.

// paid next step

Crawlable is the first gate. Audit the rest of the site.

SEO Auditor Pro moves beyond the two discovery files to technical, on-page, and structured-data checks, with prioritized fixes instead of a generic score.

Questions

What does it catch?

The robots and sitemap mistakes that decide whether your site gets crawled at all.

Does it change anything?

No. It is read-only and uses no network.

Install it directly or inspect the source

This free skill is public. Review the exact files first, or install only this skill from the JustHandled Labs repository.

terminal
npx skills add justhandledlabs/skills --skill robots-sitemap-validator

Make sure you are actually crawlable.

Current price and purchase option are shown on Agensi. Instant download. Works with any agent that reads SKILL.md.

Get Robots Sitemap Validator on Agensi