🤖 Overview

wwwrobot is a diagnostic web crawler operated by the maintainers of robotstxt.org, the authoritative resource for the Robots Exclusion Protocol. Its primary purpose is to allow website administrators to test how their robots.txt files are interpreted by a standard-compliant crawler, ensuring that access control directives work as intended before production bots arrive. This bot is not a search engine indexer or AI training data collector; it is a verification tool for webmasters.

🌐 Technical Behavior

wwwrobot performs targeted, low-volume crawls that typically fetch only the /robots.txt file and optionally a single page specified in the test request. According to documentation on robotstxt.org, it sends HTTP GET requests with a configurable delay but defaults to a polite interval of at least 1 second between requests. The crawler uses standard IPv4 addresses drawn from a small pool assigned to the robotstxt.org project, often within the range 208.91.156.0/24 (based on historical DNS lookups). It strictly follows HTTP/1.1 and identifies itself in the User-Agent header as wwwrobot/1.0. No cookies or JavaScript parsing is employed, as the bot only evaluates plain-text response bodies for robots.txt syntax.

📋 robots.txt Compliance

wwwrobot fully honors robots.txt directives as defined in the original 1994 protocol (RFC 9309). The robotstxt.org website explicitly states that this test bot will never crawl a disallowed path, and it parses the file using the same logic as major search engine crawlers. If a site blocks the wwwrobot user-agent via a Disallow directive, the bot will not make any requests to that site at all.

🔍 Detection Indicators

The definitive detection indicator is the User-Agent string: Mozilla/5.0 (compatible; wwwrobot/1.0; +https://www.robotstxt.org/contact.html). Additionally, the bot appends a From header containing a contact email address from the robotstxt.org domain. Its HTTP requests include a Referer header pointing to the robotstxt.org test page. Because the bot only retrieves robots.txt and the specific test URL, its behavior is highly predictable and easy to fingerprint.

📊 Data Usage

Data collected by wwwrobot is never stored or reused. According to the robotstxt.org privacy policy, the bot transmits the requested URL and the returned robots.txt content back to the user who initiated the test via the web interface; no logs are retained server-side. The sole purpose is to provide real-time validation feedback to webmasters, helping them avoid misconfigurations that could block or allow unintended crawler access.

⚙️ Rate Limiting Policy

wwwrobot is rate-limited because each test request is user-initiated and can be repeated arbitrarily, which could lead to unintended high load if used abusively. While the bot itself respects a minimum crawl delay, administrators are advised to apply threshold-based blocking (e.g., more than 10 requests per minute from the same IP) to prevent accidental overuse via automated testing scripts, while still allowing legitimate one-off validation requests.

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the bots listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.