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Create & Edit robots.txt Files Online

Define crawling directives and rules for Googlebot, Bingbot, and web spiders to manage SEO crawl budgets and protect private directories.

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Authoritative Guide & Syntax Reference

In-Depth Guide: Create & Edit robots.txt Files Online

Everything you need to know about formatting rules, technical specifications, best practices, and real-world workflows.

1. How Search Engine Spiders Interpret robots.txt (The Robots Exclusion Standard)

A robots.txt file is a standard plain-text document located at the root directory of a domain (e.g. https://example.com/robots.txt) that instructs automated web crawlers and search engine spiders (like Googlebot and Bingbot) which parts of a website they are allowed or forbidden from requesting. Governed by the Robots Exclusion Protocol (RFC 9309), it serves as the primary crawl budget management mechanism for search engine optimization (SEO).

2. Directive Syntax Breakdown: User-agent, Allow, Disallow & Sitemap

Robots.txt operates through a concise set of standardized directives:

User-agent: Specifies which web crawler the following rules apply to. User-agent: * targets all web spiders. Specific agents include Googlebot, Bingbot, Slurp, and GPTBot.
Disallow: Instructs the targeted crawler not to request any URL starting with the specified path (e.g. Disallow: /admin/).
Allow: Overrides a broad Disallow rule for a specific child path (e.g. Disallow: /media/ followed by Allow: /media/public/).
Sitemap: Specifies the full, absolute URL of your XML sitemap (e.g. Sitemap: https://example.com/sitemap.xml). You can declare multiple sitemap lines.

3. Pattern Matching & Wildcards in robots.txt (* and $)

Modern search engines support wildcard matching in robots.txt directives:

Asterisk Wildcard (*): Matches any sequence of characters. For example, Disallow: /*.pdf$ blocks all URLs ending with .pdf.
End-of-URL Anchor ($): Anchors the match to the end of the URL string. For example, Disallow: /checkout$ blocks /checkout but permits /checkout/confirmation.
Query Parameter Blocking: Block internal search duplicate URLs with Disallow: /*?s=*.

4. Critical SEO Pitfalls: Crawl Budget vs Indexation Prevention

Avoid these critical misconceptions when creating your robots.txt file:

robots.txt is NOT a Secret Vault: Never list sensitive hidden admin URLs in robots.txt if security depends on obscurity—the file is publicly readable by anyone. Protect private endpoints with server authentication instead.
Disallowing a URL Does NOT Guarantee De-Indexation: If external websites link to a disallowed URL, Google may still index the URL without crawling its contents. To strictly prevent indexation, leave the page crawlable and include <meta name="robots" content="noindex"> in the HTML header or return an X-Robots-Tag: noindex HTTP header.
Accidental Full-Site Blocking: A line reading Disallow: / under User-agent: * completely blocks search engines from crawling your entire website.

5. Step-by-Step Guide: Generating and Deploying robots.txt

Customize the crawler rules and sitemap URL in the editor above.
Press Ctrl + S or click File → Save File to download your clean robots.txt file.
Upload the file to the exact public root directory of your website domain so it is accessible at https://yourdomain.com/robots.txt.
Validate your rules using Google Search Console's Robots.txt Tester.

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Tag notes with #tags anywhere in your text. Click tag pills in notes or use the drawer filter to instantly group related research, projects, and ideas.

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Frequently Asked Questions: Create & Edit robots.txt Files Online

Common questions and answers regarding create & edit robots.txt files online, syntax, and privacy.

The robots.txt file must be placed at the exact root of your website domain (e.g. https://example.com/robots.txt). Search engine crawlers will not look for it in subdirectories.

No. Disallow prevents Googlebot from crawling the page, but if other websites link to it, Google may still display the URL in search results without a snippet. To strictly prevent indexation, use ``.

Yes. You can add `User-agent: GPTBot` followed by `Disallow: /` to request that OpenAI's web scraper skip your site.

The Sitemap directive must always use a full, absolute URL including https:// (e.g. `Sitemap: https://example.com/sitemap.xml`).

Yes. Outsmart Notes operates 100% client-side in your browser. No website URLs or configuration rules are sent to our servers.

The Pro Vault encrypts your selected private notes locally in your browser using 256-bit AES-GCM and PBKDF2 with 100,000 hash iterations. The vault master password never leaves your browser and is never stored on our servers. When locked, even if someone has physical access to your browser, your vault notes cannot be read without your master password.

You can connect your notes wiki-style by typing [[ anywhere in your note. An autocomplete menu will suggest existing notes, or you can type a new title. In Markdown Preview, these links become clickable, allowing instant navigation across your interconnected knowledge base. The Backlinks panel automatically lists every note linking back to the current note.

You can schedule one-time or recurring reminders (daily, weekly, monthly) for any note. Outsmart Notes uses the browser's Web Notifications API to trigger desktop alerts and in-app sound chimes when the reminder is due, with options to view the note, snooze, or mark it completed.

Press / on any blank line to open an instant interactive popup menu. Use your keyboard arrow keys or click to quickly insert headings (H1–H6), task checklists, bullet/numbered lists, syntax-highlighted code blocks, blockquotes, dates, divider lines, and wiki links.

Yes! Click File → Upload / Import Document or drag and drop any file directly into the editor. Outsmart Notes extracts readable text client-side from PDF files (via PDF.js), Word documents (.docx via Mammoth.js), Markdown, TXT, JSON, CSV, and code files with zero server uploads.

Click the microphone icon in the toolbar to activate real-time speech dictation. Outsmart Notes uses your browser's Web Speech API to convert your voice into text on the fly, complete with a live recording waveform indicator.

Zen Focus Mode (press F10 or click Zen Mode) eliminates all toolbars and distraction elements for a clean fullscreen writing experience. When Typewriter Scrolling is enabled, the line you are currently typing stays automatically centered vertically on your screen.

Press Ctrl+K (or Cmd+K on macOS) to open the Spotlight Quick Switcher. You can search notes by title, search text content, filter by #tag, switch active tabs instantly, and run editor commands without lifting your hands from the keyboard.

Outsmart Notes automatically saves snapshot revisions of your notes in local IndexedDB. Press Ctrl+H or select Edit → Version History to preview past versions, inspect character differences, and restore any previous version with a single click.

When you generate a share link, your browser encrypts the note locally using the Web Crypto API (AES-GCM 256-bit). Only the encrypted ciphertext is saved temporarily to our database. The decryption key is appended to the link after the # hash symbol (e.g. #key=...). Because browsers never send URL hashes to web servers, only people you give the link to can decrypt the note.

Outsmart Notes uses IndexedDB as its primary storage engine. Unlike synchronous localStorage, IndexedDB is asynchronous, supports multi-megabyte documents, and prevents any user-interface freezes during auto-saving.

Type - [ ] Task name to create an interactive task item, or - [x] Task name to mark it completed. The status bar automatically tracks your real-time completion progress (e.g. 2/4 tasks (50%)). When you export your note to PDF or Word (.docx), tasks automatically render with clean graphical vector checkboxes and styled typography.

Outsmart Notes features a universal client-side document compiler. Markdown symbols like **bold**, *italic*, `inline code`, ~~strikethrough~~, [Link Title](url), and - [ ] checkboxes are automatically interpreted into styled typography, clickable hyperlinks, and clean vector boxes when exporting to PDF, Microsoft Word (.docx), and HTML with zero server uploads.

Yes! Outsmart Notes is a Progressive Web App (PWA). In Chrome, Edge, Safari, or mobile browsers, click the Install / Add to Home Screen icon to install it as a standalone, offline-ready desktop or mobile application.