🤖 Overview

Spiderku is a web crawler operated by Beijing Kuaishou Technology Co., Ltd., the Chinese company behind the short-video platform Kuaishou (also known as Kwai). Its primary purpose is to systematically collect publicly accessible web content for indexing and analysis, feeding data directly into Kuaishou’s internal search engine and AI-driven recommendation systems. According to Kuaishou’s official webmaster documentation, Spiderku is designed to support the platform’s content discovery and personalization features, making it a critical component of the company’s data pipeline for improving user engagement.

🌐 Technical Behavior

Spiderku exhibits aggressive crawling patterns and frequently sends requests across multiple threads. It supports both HTTP/1.1 and HTTP/2 protocols, and its crawl depth typically covers a wide range of resource types including HTML pages, images, and CSS files. The bot originates primarily from IP addresses within ASN 138195 (Kuaishou Technology) and other Chinese ASNs, though some requests may route through global CDN nodes. Crawl frequency is variable but can exceed several hundred requests per minute from a single IP, especially during initial site discovery. Spiderku respects standard HTTP caching headers and is known to follow rel="nofollow" attributes, but it does not wait for dynamic JavaScript rendering by default.

📋 robots.txt Compliance

Kuaishou publicly states that Spiderku honors robots.txt directives. Their official guidance, posted at www.kuaishou.com/robots.txt, instructs webmasters to use standard Disallow rules to block specific paths. However, the bot’s compliance is not always immediate; some site operators report that it occasionally ignores newly updated robots.txt files for a short grace period. Overall, it is considered a well-behaved crawler that respects site owners’ restrictions once cached rules are refreshed.

🔍 Detection Indicators

The primary User-Agent string is "Spiderku/1.0", often appearing as Mozilla/5.0 (compatible; Spiderku/1.0; +https://www.kuaishou.com/robots.txt). A secondary string "KuaishouSpider/1.0" is also documented. Requests carry standard HTTP headers with a User-Agent field that is easily identifiable. Behavioral fingerprints include high request concurrency and a distinct pattern of requesting a site’s root and /favicon.ico first. IP geolocation predominantly points to Chinese data centers.

📊 Data Usage

Collected data is used exclusively for Kuaishou’s internal operations, including training machine learning models for video recommendations, search indexing, and content categorization. The company’s privacy policy outlines that public web content is processed to improve relevance and personalization on the Kuaishou platform. No user-specific personal data is intentionally stored, and the data is not sold to third parties.

⚙️ Rate Limiting Policy

Because Spiderku can generate sustained high request volumes, it is recommended to be rate-limited on shared or limited-resource servers. The policy rationale is based on preventing server overload while still allowing the crawler to access necessary content; threshold-based blocking (e.g., limiting to X requests per minute per IP) ensures fair resource distribution without completely denying the bot.

ⓘ 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.