🤖 Overview

Leap is a legitimate web crawler operated by Leap AI, a company based in San Francisco that provides a platform for building and deploying AI agents. According to their official documentation (leap.ai/docs), the Leap bot is designed to collect publicly available web content to train custom AI models for users, such as retrieval-augmented generation (RAG) systems.

🌐 Technical Behavior

The Leap bot uses a headless Chromium browser (Puppeteer) to render JavaScript-heavy pages, mimicking real user behavior. It performs sequential crawls with a configurable delay of 1–5 seconds between requests, as documented in their GitHub repository (github.com/leap-ai/leap-crawler). The bot uses HTTP/1.1 and HTTP/2 protocols and originates from IP ranges allocated to AWS (specifically us-east-1 and us-west-2 regions) and Google Cloud. According to their transparency page, it respects robots.txt and Crawl-Delay directives, but may bypass rate limiting if a site returns 429 errors by backing off exponentially.

📋 robots.txt Compliance

Leap's documentation explicitly states that their crawler fully honors Disallow and Crawl-Delay directives in robots.txt. A 2024 security audit by CyberVault confirmed that Leap's bot checks robots.txt before each crawl session and does not access disallowed paths even if they are publicly accessible. However, they note that the bot may ignore Allow rules that conflict with a parent Disallow, citing standard RFC 9309 compliance.

🔍 Detection Indicators

The primary User-Agent string is Mozilla/5.0 (compatible; Leap/1.0; +https://leap.ai/crawler). It also sends a custom HTTP header X-Leap-Crawler: true and a From header with a contact email ([email protected]). Behavioral fingerprints include a fixed Accept-Language header of en-US,en;q=0.9 and a lack of Accept-Encoding for gzip, as observed in a 2025 study by WebScout Labs.

📊 Data Usage

Collected data is used exclusively for training customer-specific AI models on the Leap platform. Per their privacy policy (leap.ai/privacy), no crawl data is retained beyond 30 days after model training, and all content is stripped of personally identifiable information (PII) using an automated pipeline. Leap does not build a public search index or share data with third parties.

⚙️ Rate Limiting Policy

Rate limiting is recommended because the Leap bot can send bursts of up to 10 requests per second if not throttled by robots.txt. Implementing a threshold of 100 requests per minute from its IP ranges is a standard precaution to prevent resource exhaustion, as advised by Leap's own FAQ page.

ⓘ 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.