SEO Tools
Robots.txt Checker
Check a site's robots.txt file and its sitemap reference, from an SEO perspective.
Enter a URL to check its robots.txt file, sitemap reference, and crawl rules.
JustChecker tracks your on-page SEO signals continuously.
Frequently Asked Questions
They examine the same file - this version is framed specifically around SEO implications (crawl budget, sitemap discovery, unintentionally blocked important pages) rather than a purely technical presence/content check.
Yes, significantly - an overly broad Disallow rule left over from staging/development, or a rule accidentally blocking a critical section of your site, can prevent search engines from crawling and indexing important content entirely.
Yes - strategically disallowing low-value pages (admin areas, duplicate filtered/sorted views) helps focus a search engine's limited crawl budget on the pages that actually matter for ranking, especially valuable for large sites.
No - the sitemap should be openly crawlable and ideally explicitly referenced in robots.txt via a "Sitemap:" line, since blocking it would defeat its entire purpose of helping search engines discover your pages.
No - it only controls crawling behavior; it has no bearing on content quality, on-page optimization, or the many other ranking factors search engines evaluate once a page is actually crawled and indexed.