Robots.txt Checker

See whether search and AI crawlers can access the page you have open: robots.txt allow/disallow, matching rule and meta robots.

Robots.txt Checker helps you see how crawlers treat the page you have open. Open a site, click the toolbar icon, and read allow or disallow results without jumping to another website. Teams use this flow when Google no longer offers a simple interactive tester for every property you touch — especially across staging hosts, client sites, and one-off audits that never get a Search Console property. Need a quick answer on the current tab? The extension fetches /robots.txt, highlights matching rules, and shows a clear verdict for the URL you care about. When a path looks blocked, the deciding line stays visible so you can quote it in a ticket instead of guessing which User-agent group applied. How a session works: 1. Open the page you want to audit. 2. Launch Robots.txt Checker from Chrome. 3. Review allow/disallow for search engine and AI crawlers. 4. Switch the user-agent to compare another crawler on the same page. 5. Copy the deciding rule when you need to share it with a teammate. When search and AI crawlers behave differently, one default agent is not enough. Switch user-agents and compare: ➤ Search engine crawlers for classic search crawl ➤ AI crawlers for AI crawl policy checks ➤ The * group that applies to all other bots ➤ Staging hosts over http, https, or localhost during build The popup also surfaces robots meta tags and the X-Robots-Tag from headers so crawl signals stay in one place. That mix supports a focused crawlability read without opening three separate tools or copying headers by hand from DevTools. Common problems this extension helps catch: • Disallow in the wrong User-agent group • Over-broad wildcards that hide needed URLs • Missing Allow exceptions under a wide Disallow • Confusing meta tags versus file rules • Sitemap lines that never get reviewed after edits • Accidental blocks on CSS, JS, or image paths that hurt rendering For deeper release checks, keep this habit nearby: 1️⃣ Confirm the live file returns 200, 404, or 5xx and interpret access accordingly 2️⃣ Re-test key templates after each release 3️⃣ Re-check subdomains that ship their own file 4️⃣ Inspect nav, assets, and parameterized URLs with the same allow/disallow logic 5️⃣ Note Sitemap references so a later sitemap review starts from facts, not guesses Robots.txt Checker stays focused on reading and explaining rules. It is not a rule generator first; if you draft elsewhere, paste into a validator step before publish. Daily SEO work still benefits from short notes you can paste: path-level allow/disallow, a syntax pass after large information-architecture changes, and a calm verdict teammates understand without leaving Chrome. Privacy matters on client sites. Parsing stays local in the browser for the domains you open. Robots.txt Checker only fetches what you ask for: the robots file and the headers needed for X-Robots-Tag and related signals. Nothing else is required to complete a test on the active tab. Who benefits day to day: ▸ SEO specialists explaining blocks to clients ▸ Developers verifying deploys did not lock crawlers out ▸ Site owners comparing production and staging ▸ Content and IA teams checking new URL patterns before launch The popup compares major search engine and AI crawlers, plus the * group, on the path you have open. Click any row to see the matching rule and User-agent group behind its verdict. Install Robots.txt Checker, keep it in your toolbar habit, and turn every open site into a calm crawl-access review — with allow/disallow answers ready to paste into tickets.