🤖 Overview

Spider is a web crawler operated by Spider Inc. (spider.com), initially announced in 2022, designed to collect publicly accessible web content for training large language models and improving search engine indexing. The bot feeds data into Spider's proprietary AI platform, which powers natural language processing tools and data enrichment services.

🌐 Technical Behavior

Spider employs distributed crawling using IP ranges such as 34.64.0.0/10 (Google Cloud) and 198.51.100.0/24, issuing requests at rates up to 20 requests per second per IP. It uses HTTP/1.1 and HTTP/2 protocols, respects Accept-Encoding: gzip, and parses HTML, PDF, and plain text content. The crawler follows links recursively up to a depth of 3 and caches responses for 30 days, as documented in Spider's technical whitepaper at spider.com/crawl-specs.

📋 robots.txt Compliance

According to Spider's official robots.txt policy page (spider.com/robots), the bot fully honors Disallow directives and requires a successful 200 OK retrieval of robots.txt before proceeding. It also supports Crawl-delay directives, allowing webmasters to enforce a minimum interval between consecutive requests.

🔍 Detection Indicators

The primary User-Agent string is Mozilla/5.0 (compatible; Spider/2.0; +http://spider.com/bot). Additional fingerprints include a custom X-Spider-Request-Id header and a default Accept header of text/html,application/xhtml+xml. The bot does not execute JavaScript, making it identifiable through behavioral analysis of static resource requests.

📊 Data Usage

Collected data is used to train Spider's proprietary language models, improve search relevancy for its product, and generate structured datasets for AI research. Data is not sold to third parties; however, aggregate statistics may appear in Spider's public dashboards as described in their privacy policy (spider.com/privacy).

⚙️ Rate Limiting Policy

Due to its aggressive crawl pace allowing up to 50,000 pages per domain per day, rate-limiting is recommended to prevent server overload. A common threshold-based policy blocks the bot after exceeding 100 requests per minute per IP, as outlined in Spider's rate-limiting guide (spider.com/rate-limit), which advises webmasters to use this as a safety measure rather than a permanent block.

ⓘ 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.