alexawebsearchplatform
Search Engine User-Agent:alexawebsearchplatform
🤖 Overview
alexawebsearchplatform is a web crawler operated by Amazon as part of the now‑retired Alexa Web Search Platform (AWSP), a service launched in 2004 that allowed third‑party developers to build custom search engines using Amazon’s crawl infrastructure. The bot collects publicly accessible web content to feed into Amazon’s search index, which was used by partners for vertical search and analytics.
🌐 Technical Behavior
The crawler uses HTTP/1.1 and HTTP/2 protocols, honoring standard crawl delays and supporting gzip compression and ETag headers for efficient fetching. It typically issues requests at a moderate rate of about one request per second per host, but can burst to higher frequencies during initial indexing of new domains. IP addresses originate from Amazon’s AS16509 and AS14618, which include AWS datacenters in North America, Europe, and Asia. The bot follows links recursively, often requesting multiple pages in quick succession, and respects Last-Modified headers to avoid re‑crawling unchanged content.
📋 robots.txt Compliance
According to Amazon’s official documentation for the Alexa Web Search Platform, the crawler fully honors robots.txt directives, including Disallow, Allow, and Crawl-delay rules. It fetches the robots.txt file at the start of each crawl session and caches it for up to 24 hours. No documented violations of robots.txt by this bot have been reported in security advisories or crawler logs.
🔍 Detection Indicators
The primary User‑Agent string is "AlexaWebSearchPlatform/1.0 (compatible; AlexaWebSearchPlatform)" and occasionally "Mozilla/5.0 (compatible; AlexaWebSearchPlatform)". No custom HTTP headers are added. Reverse DNS lookups on its IP addresses typically resolve to *.amazonaws.com or *.amazon.com subdomains. The bot does not include a specific From or Contact header.
📊 Data Usage
Data collected by the bot populated Amazon’s Alexa Web Search Platform index, which enabled third‑party developers to build search engines for e‑commerce, academic research, and vertical search applications. The crawled content was also used for internal analytics and to improve Amazon’s general search algorithms. Amazon retired the platform in 2022, and the crawler has been largely inactive since then.
⚙️ Rate Limiting Policy
Rate limiting for this bot is recommended because its moderate crawl rate can still degrade server performance, especially on smaller sites without adequate capacity. The policy rationale is to ensure equitable resource distribution among all legitimate crawlers and to prevent accidental overload during concurrent crawl sessions.
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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.