🤖 Overview

NjuiceBot is a legitimate web crawler operated by Njuice AB, a Swedish technology company specializing in web data extraction and digital business intelligence. First publicly documented in 2017, the bot’s primary purpose is to collect publicly available web content for Njuice’s Web Intelligence Platform, which aggregates data for market research, brand monitoring, and competitive analysis. The bot is explicitly described as a “friendly crawler” on the official Njuice website (njuice.com/bot) and is not associated with any malicious activities or threat actors.

🌐 Technical Behavior

NjuiceBot performs HTTP/1.1 and HTTP/2 requests with a default crawl rate of approximately one request every 2–5 seconds per domain, though it respects the Crawl-Delay directive in robots.txt when specified. The crawler uses a rotating set of IPv4 addresses drawn from the range 185.56.80.0/24 (owned by Njuice AB, as recorded in RIPE WHOIS). It primarily requests HTML pages, CSS, JavaScript, and image files, but does not attempt to access /.git/config, /wp-admin, or other sensitive paths unless explicitly linked. The bot identifies itself via the User-Agent header and includes a custom X-Njuice-Request-ID header for debugging purposes. Official documentation (njuice.com/crawler-policy) notes that the bot follows HTTP caching guidelines and will conditionally request content using If-Modified-Since and ETag headers to reduce server load.

📋 robots.txt Compliance

Based on Njuice’s published policy and independent testing recorded on GitHub (github.com/njuice/robots-compliance), NjuiceBot fully honors all Disallow directives in robots.txt. It also respects Allow overrides and the Crawl-Delay instruction. The bot’s developers explicitly state that any failure to obey robots.txt should be reported as a bug, and they provide a contact email ([email protected]) for webmasters to request additional restrictions.

🔍 Detection Indicators

The primary User-Agent string is NjuiceBot (+http://njuice.com/bot) with variations like Mozilla/5.0 (compatible; NjuiceBot/1.1; +http://njuice.com/bot). Behavioral fingerprints include a consistent request rate, the presence of the X-Njuice-Request-ID header, and a preference for low-latency responses. The bot does not spoof other user agents and can be identified by the reverse DNS lookup of its IPs, which resolve to *.crawler.njuice.com.

📊 Data Usage

Collected data is processed and stored by Njuice for the purpose of feeding their Web Intelligence Platform, which provides aggregated analytics such as pricing trends, sentiment analysis, and content monitoring for enterprise clients. The data is not used to train large language models or sold to third parties without anonymization, as stated in Njuice’s privacy policy (njuice.com/privacy).

⚙️ Rate Limiting Policy

Although NjuiceBot is legitimate and well-behaved, it may still be rate-limited by web administrators to prevent excessive load on shared hosting environments. The recommended threshold for rate limiting is 10 requests per second per IP, with a policy rationale of protecting server resources while still allowing aggregator access.

ⓘ 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.