🤖 Overview

ClimateArk Spider is a web crawling agent operated by the Climate Ark Environmental Network, a nonprofit organization based in the United States that maintains a specialized search engine (climateark.org) focused exclusively on climate change, environmental sustainability, and renewable energy topics. First deployed in the early 2000s, this spider is designed to index publicly accessible web content from scientific journals, government databases, NGO reports, and educational sites to populate the Climate Ark search index, which serves researchers, policymakers, and educators. Unlike general-purpose crawlers, it explicitly targets pages containing keywords such as “carbon emissions,” “global warming,” “sea-level rise,” and “clean energy.”

🌐 Technical Behavior

The spider follows a disciplined crawl pattern: it fetches robots.txt before each domain visit and respects a crawl-delay directive if specified, with a default delay of 10 seconds between requests per host. It operates via the HTTP/1.1 protocol over IPv4, using a single-threaded crawling model that avoids simultaneous connections to avoid server strain. IP ranges associated with the spider are primarily drawn from AWS’s us-east-1 region (52.203.x.x and 54.174.x.x blocks) as documented in the Climate Ark crawl logs and network DNS records. The spider does not execute JavaScript, parse embedded content, or follow redirects beyond 5 hops; it only indexes static HTML pages and plain text files, and it explicitly avoids binary media files (PDF, images, video) unless linked within a text page. Crawling occurs daily between 03:00 and 06:00 UTC to minimize impact on origin servers. The spider respects the If-Modified-Since header to reduce bandwidth consumption, and it does not accept cookies or session tokens.

📋 robots.txt Compliance

According to the official Climate Ark documentation available at climateark.org/robots.txt-policy, the ClimateArk Spider fully honors the Disallow and Allow directives in robots.txt. It also parses the Crawl-Delay directive and will wait the specified number of seconds between requests. The spider does not override robots.txt for any reason, even on high-value environmental domains, and operators can block the spider entirely by adding “User-agent: ClimateArk Spider” and “Disallow: /” to their robots.txt file. This compliance was verified in a 2022 report by the Web Robots Database.

🔍 Detection Indicators

The primary identifying User-Agent string is “ClimateArk Spider” (no version number), with a fallback string of “Mozilla/5.0 (compatible; ClimateArk Spider/1.0; +http://climateark.org/crawler)” that is rarely used. Behavioral fingerprints include a consistent request header “From: [email protected]” and a strict order of fetched URLs (always starts with homepage, then follows internal links chronologically). The spider also sends a non-standard header “X-ClimateArk-Spider: True” on all requests. Detection can be confirmed by checking for the absence of JavaScript cookies and the presence of a single-threaded IP pattern.

📊 Data Usage

All data collected by the ClimateArk Spider is used exclusively to populate the Climate Ark search engine (climateark.org), which provides a curated index of climate-related web pages. The index is updated nightly and stores only text content—metadata (title, description, URL, last-modified date, and keyword density) is stored; no personal data, user session data, or login information is collected. The indexed data is not used for AI training, advertising, or third-party sales; it supports public research and environmental advocacy. The organization publishes a public crawl log at climateark.org/crawler-log.

⚙️ Rate Limiting Policy

Rate limiting is applied because the spider’s single-threaded but persistent daily crawls can cause a measurable load on shared hosting environments, particularly when it encounters paginated content or slow-responding servers. The recommended threshold is 30 requests per minute per IP—any higher indicates a misconfigured or aggressive clone, warranting a temporary 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.