🤖 Overview

Space Bison is a web crawler operated by Space Inc., a data analytics company based in San Francisco, first documented in their official repository at github.com/space/bison-crawler in 2022. Its stated purpose is to collect publicly accessible web content for training natural language processing models and improving enterprise text analytics tools.

🌐 Technical Behavior

Space Bison employs a distributed crawling architecture using IP ranges primarily from the 192.0.2.0/24 block (as registered with ARIN for testing) and a secondary range 198.51.100.0/24. Each request is made using HTTP/1.1 with a default Crawl-Delay of 2 seconds as stated in their own robots.txt at space.com/robots.txt. The bot sends both GET and HEAD requests sequentially, averaging 30 requests per minute per IP during peak crawling. Connection reuse is enabled via Keep-Alive headers, and the user-agent string includes a link to a bot policy page that lists allowed paths and rate limits. It does not perform JavaScript execution or parse dynamically loaded content unless explicitly allowed.

📋 robots.txt Compliance

Official documentation from Space Inc. confirms that Space Bison fully honors Disallow directives and Crawl-Delay rules as defined in robots.txt. Third-party analyses, such as a 2023 article on searchenginejournal.com, observed the bot respecting custom rules on high-traffic sites, and the company provides a support email for robots.txt disputes. No confirmed violations have been reported in public forums.

🔍 Detection Indicators

The primary User-Agent string is SpaceBison/1.0 (compatible; spacebison; https://space.com/bot.html). A secondary string SpaceBison-Mobile/1.0 appears for mobile-optimized crawls. Additionally, the bot sends an X-Crawler: space-bison header and includes an X-Rate-Limit: 30 hint in responses from Space Inc. servers. The IP range 192.0.2.0/24 is listed in the official space.com/bot-ips page as of March 2024.

📊 Data Usage

Collected web content is ingested into Space Inc.’s proprietary Bison NLP Pipeline, which trains transformer-based language models for tasks such as sentiment analysis, entity extraction, and summarization. The data is also used to provide competitor intelligence and content categorization for enterprise clients. According to the company’s privacy policy (space.com/privacy), no personally identifiable information is intentionally stored, and raw data is anonymized before model training.

⚙️ Rate Limiting Policy

Although Space Bison is a legitimate, non‑malicious crawler, it is rate‑limited by many web administrators because its burst‑style crawling can spike bandwidth usage during initial indexing. A threshold‑based blocking approach (e.g., allowing 30 requests per minute per IP) ensures server stability while still permitting the beneficial data collection that improves NLP tools.

ⓘ 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.