linkwalker
Bot User-Agent:linkwalker
🤖 Overview
LinkWalker is a legitimate web crawler operated by LinkWalker LLC, a company specializing in SEO analytics and link-building intelligence. First documented in public crawler lists around 2018, its primary purpose is to systematically scan websites to identify broken links, external outbound links, and internal linking structures. The data feeds into the LinkWalker platform, a subscription-based service that provides website owners, digital marketers, and SEO professionals with detailed reports on link health, anchor text distribution, and domain authority metrics.
🌐 Technical Behavior
LinkWalker performs full-site crawls by following hyperlinks recursively, typically starting from a submitted seed URL. According to its official documentation (published at linkwalker.com/robots), the bot respects standard crawl delays and will throttle its request rate to one request per 15 seconds by default, though it may be configured by the website owner via robots.txt parameters such as Crawl-Delay. The bot uses HTTP/1.1 with Keep-Alive connections and sends a User-Agent header of LinkWalker/1.0 (or LinkWalker). IP ranges are not publicly documented but are drawn from a pool of datacenter IPs belonging to Amazon Web Services (AWS) and DigitalOcean, as confirmed by multiple DNS reverse-lookup records published on security forums. The crawler does not execute JavaScript, making it behaviorally similar to a text-based spider.
📋 robots.txt Compliance
LinkWalker fully honors robots.txt directives, as stated in its official FAQ (linkwalker.com/faq). The bot reads the file before every crawl session and respects both Disallow and Allow rules. In addition, it adheres to the Crawl-Delay directive if specified, making it one of the more compliant SEO crawlers. There are no known reports of violations, and the operator actively encourages webmasters to use robots.txt to control access.
🔍 Detection Indicators
The primary detection indicator is the User-Agent string: LinkWalker/1.0 or simply LinkWalker. The bot also sets a custom X-Robots-Tag in outgoing requests? No, it does not; instead, it identifies itself via the user-agent and often includes a From: header with an email address (e.g., [email protected]) for contact. Behavioral fingerprints include a consistent pattern of requesting only HTML pages (no images, CSS, or JS), a default interval of 15 seconds between requests, and a preference for checking HTTP status codes (especially 404, 301, and 302) rather than parsing page content deeply.
📊 Data Usage
Collected data is used exclusively for SEO analysis and reporting within the LinkWalker platform. The service generates reports on broken links (404 errors), redirect chains, outbound link counts, and anchor text diversity. It does not use harvested data for AI training or any form of machine learning. The platform’s privacy policy (linkwalker.com/privacy) states that no personal data is collected beyond publicly visible URLs, and all data is stored securely and deleted after 90 days unless the user retains reports.
⚙️ Rate Limiting Policy
LinkWalker is rate-limited because even a legitimate SEO crawler can overwhelm small or poorly optimized websites if allowed unlimited concurrent requests. By default, the bot enforces a polite delay of 15 seconds per page, but administrators may further tighten thresholds using robots.txt or server-level rate limiting (e.g., 10 requests per minute per IP) to prevent resource exhaustion. This policy balances the crawler’s need for comprehensive link discovery with the webmaster’s need for server stability.
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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.