Robots.txt File Generator

A robots.txt file is a public set of crawl instructions placed at the root of a website. It helps cooperative crawlers understand which URL paths they may request and which areas you would rather they avoid. This generator is designed for more than a one-line allow or block rule. It gives you a practical starting policy, reusable path presets, Allow exceptions, sitemap declarations, named crawler controls, and an advanced area for special cases. The result stays readable so you can review every instruction before publishing it.

Begin with the policy that matches the site. An open public site can allow the full domain. A staging or private preview should normally be protected with authentication, but a temporary block-all file can provide an additional crawl signal. A custom policy is best for most established sites because it lets crawlers reach public content while skipping areas such as internal search results, carts, checkouts, account screens, administration pages, temporary files, or low-value parameter combinations. Select only paths that really exist on your website instead of copying a long generic list.

Path rules are matched from the beginning of a URL path, and the more specific matching rule generally wins. That is why an Allow exception can sit inside a broader Disallow area. A common WordPress example blocks the administration directory while allowing the admin AJAX endpoint needed by public pages. The generator keeps Allow and Disallow entries in separate fields so these relationships are easier to inspect. Wildcards and an end marker can be useful, but they should be tested carefully because crawler support and interpretation can vary.

Crawler overrides are intentionally set to Inherit by default. A named group can replace the general group for that crawler, so creating many unnecessary overrides makes the file harder to maintain and can accidentally omit rules you expected the crawler to inherit. Use an override when you have a clear purpose: allowing a search crawler while blocking a broad default, controlling image or news crawling separately, opting out of selected AI uses, or allowing social preview crawlers to fetch public sharing images. The generator includes common search, AI, and social user-agent tokens plus an advanced custom-groups field for a documented crawler that is not listed.

Sitemap lines are optional but useful for pointing crawlers to one or more XML sitemaps. Enter complete URLs, including the protocol and hostname, and remember that each host can have its own robots.txt file. Crawl-delay and Host are offered as optional compatibility directives rather than universal settings. Google does not use Crawl-delay, and support differs elsewhere, so apply a small delay only when you understand the effect on freshness. The Host directive also has limited crawler support and should not replace redirects, canonical URLs, or consistent internal links.

Robots.txt is not a privacy or security system. A blocked URL remains publicly visible in the file, disobedient bots can ignore the rules, and a search service may still know about a URL through links. Do not use crawl rules to protect customer data, admin screens, unpublished documents, or secrets; secure those resources with authentication and server permissions. If the goal is to keep a public page out of search results, use an appropriate noindex method while still allowing the crawler to read that instruction. After publishing, test the live file, check critical page paths, and revisit it whenever routes, platforms, or crawler policies change.