robots.txt Generator

Free, no signup. Set a simple default policy, choose the bot groups to block, then test representative URLs against the generated file before publishing it.

Build your file

Select crawler groups to block. Search crawlers remain allowed unless you explicitly select them.

This non-standard directive is emitted only for Bingbot. Google does not process it; Bing documents 1–20 second values. It is omitted if you block Bingbot.

Open in robots.txt Tester

Runs entirely in your browser — nothing you paste is uploaded or stored. Everything here, including matching and copy output, runs in your browser. Nothing is uploaded. Anonymous run-level outcome counters may be used for aggregate research; URLs, domains, IPs, and identifiers are never included, and no statistic is released below 100 runs.

Generated robots.txt

Blocking ≠ deindexing. A Disallow asks compliant crawlers not to fetch a URL; it does not remove a URL already known to a search engine.

Live match preview

Need a full bot × URL matrix? Open robots.txt Tester →

How to use it

  1. Choose which bot categories should not crawl the site.
  2. Add your absolute sitemap URL if you have one.
  3. Paste a few important URLs and a bot name to confirm the intended result.
  4. Copy the file to the site root as /robots.txt.

How it works

The output uses separate user-agent groups and Disallow: / rules, so the intention is easy to audit. It uses the same Google-style matcher as the robots.txt Tester, including longest-match-wins behavior.

What this generator does not do

robots.txt is not security, and it is not a deindexing tool. Do not list sensitive paths expecting them to stay secret; the file is public. Use access controls for private material and noindex for index removal.

Frequently asked questions

Does blocking a bot deindex my pages?

No. robots.txt controls crawling, not whether a URL remains indexed. Use a noindex directive on a crawlable page when you need a deindexing signal.

Will every crawler obey this file?

No. robots.txt is a public, voluntary crawl preference, not access control. Use authentication, a WAF, or rate limiting to protect private content.

Why do I need a Sitemap line?

It gives crawlers an explicit absolute URL for your XML sitemap. It is optional, but usually useful for discoverability.

Local data

Saved targets, named lists, and recent check summaries remain only in this browser.

Next steprobots.txt Tester — verify it with a direct check.

Feature requests for Robots Txt Generator

Upvote what you want most. New ideas can be submitted from the floating Feedback menu; requests appear here once approved, and the most-wanted rise to the top.

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Feedback
Report a bug

Found something broken in Robots Txt Generator? Let us know what happened — this goes straight to a private triage queue, not a public list.

What will be sent
 No tool inputs, uploads, pasted source, complete results, query parameters, or URL fragments are attached automatically. You can edit or remove the selected passage above. Browser and anti-abuse metadata is processed for spam prevention. 

ツールについて

クローラーのプリセット、ライブGoogle形式のURLマッチング、サイトマップ行、コピー可能な出力を備えた明確なrobots.txtを作成します。

検索、AI学習、アシスタント、アーカイブのグループを選び、公開前に代表URLで生成結果を確認します。

機能

  • 検索・AI・アシスタント・アーカイブのグループ化
  • 任意のBingbot crawl-delay(1〜20秒)
  • Google形式の最長一致マッチャー
  • サイトマップ行とコピー可能な出力

仕組み

ブロックするクローラー群を選び、任意の絶対サイトマップURLとURLサンプルを入力します。別々のUser-agentグループとDisallow規則を出力し、robots.txt Testerと同じGoogle形式の最長一致で結果を表示します。

制限事項

  • robots.txtはセキュリティやインデックス削除の手段ではありません。機密パスを隠すために列挙せず、非公開にはアクセス制御、削除にはnoindexを使ってください。
  • すべてのクローラーが任意の設定に従うとは限らず、実際の挙動はこのファイルだけでは保証できません。

よくある質問

ボットをブロックするとページはインデックスから消えますか?

いいえ。robots.txtはクロールを制御するだけです。削除シグナルが必要なら、クロール可能なページでnoindexを使ってください。

すべてのクローラーはこのファイルに従いますか?

いいえ。robots.txtは公開された任意のクロール設定であり、アクセス制御ではありません。非公開コンテンツには認証、WAF、レート制限を使ってください。

Sitemap行が必要なのはなぜですか?

XMLサイトマップへの絶対URLをクローラーに明示できます。任意ですが、発見性のため通常は役立ちます。