robots.txt grouping
Review User-agent groups, Allow and Disallow rules, Crawl-delay values, duplicate rules, empty rules and invalid robots.txt lines.
Free Robots and Sitemap Checker
Robots and Sitemap Checker for crawl-file QA without live crawling
Paste robots.txt, sitemap.xml or sitemap index content into the Robots and Sitemap Checker to identify the file type and review common search crawling risks in one browser-side report. It combines robots.txt syntax review and sitemap XML checks, but it does not fetch a domain or crawl your site.
Browser-side crawl-file audit
Paste content into the Robots and Sitemap Checker
The Robots and Sitemap Checker detects robots.txt, sitemap.xml or sitemap index content, then checks rules, XML structure, URLs, duplicate entries, lastmod dates and dangerous crawl-blocking patterns locally.
Your pasted content stays in this browser tab. The Robots and Sitemap Checker does not request a live URL, crawl your domain or upload private staging files.
Robots and Sitemap Checker results will appear here
Paste or upload robots.txt, sitemap.xml or sitemap index content to see detected type, rule groups, blocked paths, sitemap URLs, URL counts, duplicate URLs, invalid loc values, lastmod warnings and repair suggestions.
Robots and Sitemap Checker summary
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Robots and Sitemap Checker overview
Issue details
Repair suggestions
How the Robots and Sitemap Checker reviews crawl files
The Robots and Sitemap Checker keeps robots.txt syntax review and sitemap XML validation together, because crawl mistakes often involve both files.
Robots and Sitemap Checker type detection
Paste or upload raw robots.txt, sitemap.xml or sitemap index content. The Robots and Sitemap Checker identifies the input type and runs the matching browser-side checks without fetching a domain.
Robots and Sitemap Checker issue report
The Robots and Sitemap Checker shows robots rule groups, blocked paths, Sitemap directives, URL counts, duplicate URLs, invalid loc values, lastmod warnings and dangerous User-agent rules.
Robots and Sitemap Checker repair workflow
Copy the Robots and Sitemap Checker suggestions, update the file in your CMS or repository, then paste the revised content again before launch or handoff.
Robots and Sitemap Checker features for technical SEO
Use the Robots and Sitemap Checker when a crawl-related file needs quick QA before a release, migration, staging handoff or CMS update.
Dangerous crawl blocks
Flag User-agent: * with Disallow: / so a staging rule is less likely to block the full public site by accident.
Sitemap XML parsing
Check whether sitemap XML parses cleanly and uses urlset or sitemapindex as the root element.
URL quality checks
Find empty loc values, non-HTTP loc values and duplicated canonical URLs before the sitemap is submitted.
lastmod review
Spot lastmod values that do not look like YYYY-MM-DD or a clear ISO date-time value.
Private local checking
Run the Robots and Sitemap Checker in the browser for drafts and staging files without uploading content or crawling URLs.
How to use the Robots and Sitemap Checker before launch
The Robots and Sitemap Checker is designed for pasted or uploaded file content, so it is a stable preflight for repositories, CMS exports and staging handoffs.
01
Paste or upload one crawl file
Copy the raw robots.txt, sitemap.xml or sitemap index content into the Robots and Sitemap Checker, or upload a .txt or .xml file from your device.
- Use raw file content, not a domain name
- The tool checks one pasted file at a time
02
Review the Robots and Sitemap Checker report
Start with failures such as invalid XML, empty loc values, invalid loc URLs and User-agent: * with Disallow: /. Then review duplicate rules, Crawl-delay values, repeated URLs and lastmod warnings.
The Robots and Sitemap Checker does not test server status, robots file discovery, sitemap submission state or live search engine behavior. It checks the content you provide.
Review report 03
Apply fixes and recheck with the Robots and Sitemap Checker
Copy the repair suggestions, update your robots.txt or sitemap generation logic, and run the Robots and Sitemap Checker again with the revised content.
For migrations, check the production robots.txt and each generated sitemap file separately before switching traffic.
Recheck fileRobots and Sitemap Checker FAQ
Answers about accepted input, privacy, limits, official sitemap rules, robots.txt interpretation and what the Robots and Sitemap Checker does not crawl.
What can I paste into the Robots and Sitemap Checker?
You can paste raw robots.txt, sitemap.xml or sitemap index content. The Robots and Sitemap Checker detects the type from the content and runs checks for that file. It is not a domain lookup tool.
Does the Robots and Sitemap Checker fetch my website?
No. The Robots and Sitemap Checker only checks pasted or uploaded content in your browser. It does not request /robots.txt, crawl pages, submit sitemaps or verify server responses.
Which robots.txt issues does the Robots and Sitemap Checker flag?
It checks User-agent groups, Allow and Disallow rules, Sitemap directives, Crawl-delay values, empty rules, duplicate rules, invalid lines and the high-risk User-agent: * plus Disallow: / pattern.
Which sitemap issues does the Robots and Sitemap Checker flag?
It checks whether XML parses, whether the root is urlset or sitemapindex, whether loc values are empty or invalid, whether URLs repeat, whether lastmod values look malformed and whether the entry count is over 50,000.
Can the Robots and Sitemap Checker guarantee search engine crawling?
No. The Robots and Sitemap Checker catches common content-level problems, but search engine behavior also depends on live server access, redirects, HTTP status, canonical tags, page quality and crawler-specific rules.
Are uploaded crawl files private in the Robots and Sitemap Checker?
Yes. The check runs in the browser tab, so the file content does not need to leave your device. Avoid pasting secrets into public crawl files anyway, because robots.txt and sitemaps are usually meant to be publicly accessible.
Run the Robots and Sitemap Checker before publishing
Paste the crawl file, review the report, copy the suggested fixes and recheck the revised robots.txt or sitemap.xml before launch.
Browser-side checks only; no domain crawl or live fetch.