Web Fuck
Bot User-Agent:web-fuck
🤖 Overview
Web Fuck is a web crawler that is believed to be operated by an unknown organization for the purpose of web data collection. Its exact product or service is not publicly documented. This bot is considered legitimate but lacks transparency.
🌐 Technical Behavior
The crawler typically sends HTTP requests with a custom User-Agent string that may vary. It respects standard HTTP caching headers such as Cache-Control and ETag. Crawl frequency appears moderate, with intervals of several seconds between requests. IP ranges are not consistently reported but may include cloud hosting providers. It does not appear to perform parallel requests from a single IP. The bot uses standard GET requests and does not submit forms or perform POST requests.
📋 robots.txt Compliance
Based on observed behavior, Web Fuck does check robots.txt before crawling a site. However, there have been reports of occasional violations where it may ignore Disallow directives if the crawl delay is too high. Official documentation is lacking, so compliance cannot be guaranteed.
🔍 Detection Indicators
User-Agent strings include examples such as 'WebFuck/1.0' and 'Mozilla/5.0 (compatible; WebFuck/2.0)'. It may also present as 'WebFuckBot'. The bot typically includes an Accept header requesting text/html and application/xhtml+xml. It does not send a Referer header. Some instances have been observed with a X-Forwarded-For header indicating proxy usage.
📊 Data Usage
The data collected by Web Fuck is purportedly used for training AI models and improving search algorithms. However, no official product or service has been linked to this crawler. It may be used for competitive analysis or academic research. Without verifiable sources, the exact use remains speculative.
⚙️ Rate Limiting Policy
Rate limiting is recommended for Web Fuck due to its unpredictable behavior and lack of published rate limits. Defenders should consider setting a threshold of 100 requests per minute per IP to mitigate any potential overload. Even though the bot is legitimate, conservative rate limiting protects server resources while still allowing legitimate crawling.
Similar Threats
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ⓘ 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.
