Free Robots.txt Generator – Create Robots.txt File Online

What Robots.txt Does and How to Build One Safely

A robots.txt file is a plain-text file at the root of your site that tells search engine crawlers which areas they may or may not visit. This generator lets you set those rules in plain terms and hands back a correctly formatted file, with no directive syntax to memorize. Getting it right is a core part of technical SEO, and getting it wrong is surprisingly costly: one misplaced rule can either expose pages you meant to hide or, in the worst case, block your entire site from being crawled. Site owners, developers launching new projects, e-commerce managers taming duplicate filter URLs, and publishers pointing bots at fresh content all rely on a clean robots.txt to steer how crawlers spend their limited attention. Because Google assigns each domain a finite crawl budget, the file also matters for speed of discovery — pages you care about get crawled sooner when bots are not wasting requests on low-value areas. The file works through simple directives. A User-agent line names which crawler a block applies to — for example Googlebot, Bingbot, or the wildcard * for all of them. Disallow lines list paths the crawler should skip, and Allow lines carve out exceptions inside a disallowed area. A Sitemap line points to your XML sitemap so engines discover your pages faster. As you pick paths to allow or disallow and enter your sitemap URL, the generator assembles these lines in the right order and shows the finished file ready to copy. Crucially, robots.txt governs crawling, not indexing — a blocked page can still surface in results if other sites link to it, which surprises many webmasters who expect a Disallow to act like noindex. The generator adds a reminder about that distinction so you choose the right mechanism for the job. Here is a typical result. Say you want to keep your admin area and internal search results out of crawls while still pointing to your sitemap. The generator produces: User-agent: * Disallow: /admin/ Disallow: /search Allow: / Sitemap: https://yoursite.com/sitemap.xml You copy that, save it as robots.txt, and upload it so it is reachable at https://yoursite.com/robots.txt. Crawlers read it on their next visit and steer clear of /admin/ and /search. If you later want to let Bingbot crawl /admin/ while keeping Googlebot out, you add a separate User-agent block for each, and the generator formats the two cleanly. The practical scenarios are common. A store blocks faceted filter URLs like /shoes?color=red that spawn endless near-duplicate pages and waste crawl budget. A publisher points bots at the sitemap so new articles are found within hours instead of days. A developer ships a clean baseline file with a new site so staging junk never leaks into search. A blogger keeps a thank-you page out of crawls to avoid cluttering the index with thin confirmation screens that add no search value. A handful of rules keep you safe. Never disallow your CSS and JavaScript folders — Google needs them to render pages, and blocking them can hurt mobile-friendliness assessments and rankings. If you truly want a page kept out of search, use a noindex meta tag rather than a Disallow, since blocking crawling alone will not remove a linked page from the index. Avoid the catastrophic Disallow: / under User-agent: * unless you genuinely mean to block everything — this single slip has wiped sites from search overnight. Always test the file in Google Search Console's robots.txt tester before relying on it, and remember crawlers only check the root domain, so the file must live at the exact root path. Everything runs in your browser, so nothing you enter is uploaded.

Learn More — Robots.txt Generator Guide

🔥 Trending Tools