UseAI

Bot User-Agent: useai

🤖 Overview

UseAI is an automated web crawler operated by UseAI Inc., a company specializing in large‑scale language model training and natural language processing research. The bot systematically scrapes publicly accessible web content to build high‑quality training datasets for the company’s proprietary AI models, similar in purpose to OpenAI’s GPTBot or Anthropic’s ClaudeBot. According to UseAI’s official documentation published at https://useai.com/crawler, the project was launched in early 2024 and focuses on text‑rich pages from news sites, blogs, forums, and academic repositories.

🌐 Technical Behavior

UseAI crawls via HTTP/1.1 and HTTP/2, issuing GET requests with a default interval of 2 seconds between pages and a burst limit of 5 requests per second. The crawler’s IP ranges are primarily drawn from Amazon Web Services (AWS) EC2 and Google Cloud Platform — specifically subnets 52.0.0.0/8 and 34.0.0.0/8 — as confirmed by reverse DNS lookups. The bot respects the Accept‑Encoding: gzip, deflate header to reduce bandwidth and always includes a distinct X‑UseAI‑Crawler: 1 custom HTTP header. UseAI also fetches robots.txt before every crawl session and reloads it every 24 hours. Its crawl depth is limited to 3 hops from the starting URL unless explicitly allowed, and it avoids pages with query strings containing session IDs or pagination parameters.

📋 robots.txt Compliance

UseAI honors Disallow directives fully and pauses crawling for the standard 5‑second delay after encountering a Crawl‑Delay rule. The official robots.txt specification at https://useai.com/crawler/robots.txt states that UseAI will not index any path starting with /admin, /private, or /api unless explicitly whitelisted. Multiple independent site owners have reported that UseAI adheres to these rules within 1‑2 seconds of the directive being updated, making it one of the more compliant AI crawlers.

🔍 Detection Indicators

The primary User‑Agent string is Mozilla/5.0 (compatible; UseAI/1.0; +https://useai.com/crawler). A secondary UA string UseAI‑Bot/1.0 is used for mobile‑optimized content. Behavioral fingerprints include a fixed 2‑second inter‑request delay (configurable by site owners via a X‑UseAI‑Crawl‑Delay header) and consistent TLS fingerprints matching AWS/GCP infrastructure. The bot also sends a From header (e.g., [email protected]) for identification, as documented in the company’s developer guidelines.

📊 Data Usage

Crawled text is processed and stored in UseAI’s internal dataset repository, which is used exclusively for training transformer‑based language models. According to UseAI’s privacy policy (https://useai.com/privacy), content is de‑duplicated, filtered for personally identifiable information (PII), and used only for supervised fine‑tuning and reinforcement learning. No raw content is redistributed, and all training data is retained for a maximum of 18 months before rotation.

⚙️ Rate Limiting Policy

UseAI is rate‑limited by many webmasters to prevent excessive resource consumption, especially on high‑traffic sites. The recommended threshold is 10 requests per second per IP, with a 60‑second burst window, matching the bot’s own stated limits. This policy ensures fair bandwidth allocation while still allowing the legitimate AI training mission to proceed without overwhelming origin servers.

53% of Web Traffic Is Bots in 2026

— Imperva Bad Bot Report 2026

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ⓘ 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.