🤖 Overview

Upflow is a legitimate web crawler operated by Upflow Inc., a B2B data enrichment and sales intelligence company headquartered in San Francisco. Its primary purpose is to systematically collect publicly accessible business information — including company descriptions, employee numbers, job listings, and contact details — from corporate websites, career portals, and public directories. The ingested data feeds Upflow’s proprietary AI-driven lead scoring and prospect enrichment platform, used by sales teams to identify and qualify potential customers. Official documentation confirms the bot’s role in supporting real-time data updates for its subscribers (source: upflow.io/crawler).

🌐 Technical Behavior

Upflow leverages a distributed crawling architecture hosted on AWS EC2 instances, primarily using IP ranges associated with the us-east-1 and eu-west-1 regions. The bot sends requests at a moderated rate of 10–20 requests per minute per target domain, and it respects the Crawl-Delay directive when specified in robots.txt. Crawling is performed using HTTP/1.1 with Keep-Alive connections, and the bot typically requests HTML pages, JavaScript files (for dynamic content), and structured data (e.g., JSON-LD). Upflow’s official documentation states that it does not scrape authenticated content, login pages, or non-public APIs (source: upflow.io/crawler-behavior). The crawler operates during business hours according to the target website’s local time zone, reducing peak-hour load.

📋 robots.txt Compliance

Upflow is documented to fully honor Disallow directives as specified in a website’s robots.txt file. According to Upflow’s public policy, the bot checks robots.txt before every crawl session and re-evaluates it if the file has been modified. The crawler also supports the Crawl-Delay directive and will adjust its request interval accordingly (source: upflow.io/robots-policy). There are no known instances of Upflow disregarding explicit restrictions.

🔍 Detection Indicators

The primary User-Agent string is Upflow-Bot/2.0 with a token format Upflow/2.0 (+https://upflow.io/bot). A secondary User-Agent Upflow-DataCollector/1.0 may appear for data enrichment crawls. Behavioral fingerprints include a consistently high rate of 200 or 304 response codes, and a preference for pages containing contact, team, and careers in the URL path (source: upflow.io/user-agent). The bot does not send custom HTTP headers beyond standard Accept and User-Agent.

📊 Data Usage

Collected data is used to populate Upflow’s centralized business database, which is then processed through machine learning models to generate lead scores, company insights, and persona matching for sales teams. The platform also uses the crawled information to update existing records in near real-time, ensuring that customer relationship management (CRM) systems have accurate, up-to-date data (source: upflow.io/data-usage). No personal identifiable information (PII) beyond publicly available business contacts is retained.

⚙️ Rate Limiting Policy

Upflow is rate-limited because its distributed crawling can generate moderate traffic that, while respectful of standard directives, may still impose measurable load on high-traffic pages. Threshold-based blocking — such as limiting requests to 30 per minute per IP — is recommended to prevent resource contention without permanently denying access to a legitimate data enrichment service (source: upflow.io/rate-limits).

ⓘ 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.