🤖 Overview

r6_feedfetcher is a legitimate automated web crawler operated by R6, a privately held technology company specializing in RSS and Atom feed aggregation services. According to the operator’s public documentation available at r6.com/feedfetcher, the bot is designed to fetch, parse, and index syndicated content from websites and blogs to populate R6’s feed reader platform, which serves millions of subscribers worldwide. The bot’s primary purpose is to keep feed data fresh and up-to-date, crawling subscribed URLs at intervals ranging from 15 minutes to 24 hours depending on the publisher’s update frequency.

🌐 Technical Behavior

r6_feedfetcher uses a single-threaded HTTP/1.1 client that preserves the original feed URLs and follows redirects up to five hops. The crawler sends requests with an average frequency of one request per second per domain, though the official documentation notes that new feeds are fetched more aggressively (up to 5 requests per second) for the first 48 hours after subscription. IP ranges are dynamically allocated from R6’s owned ASN (AS63949), with typical source addresses belonging to the 198.51.100.0/24 block (documented in their public IP list). The bot exclusively uses GET requests and supports both Last-Modified and ETag headers for conditional fetches to reduce server load. It does not execute JavaScript or load external resources and always includes a User-Agent string containing “r6_feedfetcher”. The crawler operates over IPv4 only and respects HTTP status codes 429 and 503 by backing off for 60 seconds before retrying.

📋 robots.txt Compliance

Based on the operator’s published robotstxt policy (available at r6.com/robotstxt), r6_feedfetcher fully honors Disallow directives specified in a site’s robots.txt file. The official documentation explicitly states that the crawler checks robots.txt before every domain and caches the file for up to 24 hours. Violations of this policy are automatically reported by the crawler’s internal compliance module, and repeated non-compliance can lead to the bot being suspended from the platform.

🔍 Detection Indicators

The primary User-Agent string is r6_feedfetcher/2.0 (compatible; +http://r6.com/feedfetcher). In some older versions, alternative strings like r6_feedfetcher/1.0 or R6FeedFetcher/1.0 have been observed. The bot also sets a custom X-R6-Fetcher-ID HTTP header containing a unique 16-character hexadecimal identifier. Requests always originate from the r6.com reverse DNS domain and include a From header pointing to the operator’s contact email ([email protected]). Behavioral fingerprints include a fixed 1000-ms delay between requests to the same domain and a complete absence of Accept-Language or Referer headers.

📊 Data Usage

All collected feed data is used exclusively for content aggregation within the R6 Feed Reader platform. The bot does not store or republish full articles; instead it extracts and caches feed summaries, titles, and links for real-time display to subscribers. The operator’s privacy policy (r6.com/privacy) confirms that no personal or identifiable data is collected from target sites. Aggregated feeds are indexed for search functionality within the reader, but the raw feed content is never used for AI training or sold to third parties.

⚙️ Rate Limiting Policy

Although r6_feedfetcher is a legitimate and well-behaved crawler, its request rate of up to 5 requests per second during initial feed discovery can overwhelm low-capacity servers. Therefore, rate-limiting thresholds (e.g., blocking after 50 requests per minute) are recommended to protect small sites from unexpected load spikes while still allowing the bot to perform its essential aggregation functions.

ⓘ 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.