How to Generate a Robots.txt File Online for Free

What Is a Robots.txt File

Robots.txt is a plain text file placed at the root of your website that tells search engine crawlers (bots) which pages or sections of your site they are allowed or not allowed to access.

When Googlebot, Bingbot, or any other crawler visits your site, it first checks yourwebsite.com/robots.txt. If the file exists, the bot reads it before crawling. The file can tell specific bots to crawl everything, skip certain directories, delay between requests, or find your sitemap.

Robots.txt is part of the Robots Exclusion Protocol — a voluntary standard that well-behaved crawlers follow. Legitimate search engine bots respect robots.txt. Malicious crawlers may not.

How to Generate a Robots.txt File Using TakeTheTools

Open the Robots.txt Generator on TakeTheTools.

Choose your settings:

Allow all robots — The simplest configuration. Every bot can crawl everything. This is appropriate for most public websites that want to be fully indexed.

Block specific paths — Enter the URL paths you want to block from crawling. Common paths to block: /admin/, /login/, /private/, /api/, /checkout/.

Block specific bots — You can disallow specific crawlers while allowing others. Useful for blocking aggressive scrapers while keeping Google and Bing.

Crawl delay — Ask bots to wait N seconds between requests, reducing server load from crawling activity.

Sitemap URL — Include the location of your XML sitemap so crawlers can find it directly from robots.txt.

The generated robots.txt content appears instantly. Download it as a .txt file and place it at your website's root directory — accessible at yourdomain.com/robots.txt.

Robots.txt Syntax Explained

The file uses simple directives:

User-agent — Which bot the following rules apply to. * means all bots.

Disallow — Which paths the specified bot cannot access. An empty Disallow means everything is allowed.

Allow — Explicitly permits a path, overriding a broader Disallow. Useful when you block a directory but want to allow a specific file within it.

Crawl-delay — Seconds to wait between requests (not supported by all crawlers, including Googlebot).

Sitemap — URL of your XML sitemap.

Example — allow everything:

User-agent: *
Disallow:

Sitemap: https://yourdomain.com/sitemap.xml

Example — block admin and private sections:

User-agent: *
Disallow: /admin/
Disallow: /private/
Disallow: /login/
Disallow: /api/

Sitemap: https://yourdomain.com/sitemap.xml

Example — block a specific bot:

User-agent: BadBot
Disallow: /

User-agent: *
Disallow: /admin/

Sitemap: https://yourdomain.com/sitemap.xml

What to Block — and What Not to Block

Pages to consider blocking:

• /admin/ or /dashboard/ — Backend administration areas should not appear in search results
• /login/ and /register/ — Login pages provide no value in search results
• /api/ — API endpoints are not meaningful search results
• /checkout/ and /cart/ — E-commerce transaction pages
• /search? — Internal search results pages (duplicate content risk)
• /thank-you/ and /confirmation/ — Post-conversion pages with no standalone value
• Development and staging subfolders if hosted on the same domain

Pages NOT to block:

• Your main content pages, product pages, blog posts — these are what you want indexed
• /sitemap.xml — Never block your sitemap
• CSS and JavaScript files — Google needs to crawl these to render your pages correctly. Blocking them can hurt rankings because Googlebot cannot see how your pages actually look
• Image directories — If you want image search traffic, allow image indexing

Critical Mistakes to Avoid

Blocking your entire site accidentally. The most destructive robots.txt error:

User-agent: *
Disallow: /

This blocks all crawlers from your entire site. Google will not index any pages. Traffic drops to zero from search engines. Always double-check your file before uploading.

Blocking CSS and JavaScript. Old SEO advice recommended blocking these to save crawl budget. Google now needs to render pages like a browser — blocking its access to CSS and JS means it sees an unstyled, broken version of your site, which can hurt rankings.

Using robots.txt for sensitive data security. Robots.txt is public. Anyone can read it at yourdomain.com/robots.txt. Do not list sensitive URL paths thinking you are hiding them — you are actually advertising their existence. For truly private content, use authentication and access control, not robots.txt.

Forgetting trailing slashes. Disallow: /admin blocks the exact path /admin but may not block /admin/ or /admin/dashboard. Use Disallow: /admin/ with a trailing slash to block the directory and everything in it.

Syntax errors. Robots.txt has simple but strict syntax. A misplaced character or wrong format can make the entire file invalid, causing crawlers to ignore it. Using a generator ensures correct syntax.

Robots.txt vs Noindex — What Is the Difference

These are two different ways to control search engine visibility, and they are not interchangeable.

robots.txt Disallow — Prevents the crawler from visiting the page at all. The page is not crawled, not indexed (usually), and its content is not analyzed. However, if other sites link to a disallowed page, Google may still show the URL in search results (without a description, since it could not read the content).

Noindex meta tag — The crawler visits the page, reads the content, but is instructed not to include it in search results. The page is crawled but not indexed. This is cleaner for pages you want to exclude from search results while still letting the crawler process them.

For most "do not show in search results" use cases, noindex is more reliable. For reducing crawler load on large sections of a site (like an e-commerce site with thousands of filtered URL variants), robots.txt Disallow is appropriate.

Placing the File on Your Website

The robots.txt file must be at the root of your domain — https://yourdomain.com/robots.txt. It cannot be in a subdirectory.

Next.js: Place the file in the /public folder as robots.txt. It will be served at the root automatically.

WordPress: Place it at the root of your WordPress installation, or use an SEO plugin (Yoast, RankMath) that generates and manages it for you.

Static sites: Place it in the root of your build output folder.

After placing the file, verify it is accessible by visiting yourdomain.com/robots.txt in your browser.

Final Thoughts

A well-configured robots.txt file helps search engines crawl your site efficiently — letting them reach important content and skipping pages that add no value to search results. Getting it right prevents accidental indexation of private pages and accidental blocking of important ones.

The TakeTheTools Robots.txt Generator creates a correctly formatted file based on your settings, ready to download and deploy. Free, no account required.