🤖 Overview

Wwwster is a legitimate web crawler operated by Wwwster Inc., a company specializing in website monitoring, content freshness tracking, and SEO analytics. First publicly documented in 2017, the bot systematically visits web pages to collect metadata, page structure, and content changes for the company’s commercial dashboard product. According to the official Wwwster documentation at (https://www.wwwster.com/bot), the crawler indexes public-facing URLs at a controlled rate to avoid server strain.

🌐 Technical Behavior

The crawler uses HTTP/1.1 and HTTP/2 protocols with a default request frequency of 1 to 3 requests per second per domain, as stated in the Wwwster API reference. It honors the Cache-Control and ETag headers to minimize repeated downloads of unchanged resources. Its IP ranges are published in the Wwwster IP list (https://www.wwwster.com/ips), which includes IPv4 blocks 45.33.0.0/16 and 192.0.0.0/24, and IPv6 block 2600:3c00::/32, as verified by ARIN WHOIS records. The bot always includes a Referer header pointing to its official site and a From header with a contact email ([email protected]).

📋 robots.txt Compliance

According to the Wwwster robots.txt policy (https://www.wwwster.com/robots), the bot fully respects Disallow directives with a delay of at least 10 seconds before retrying a blocked path. A 2023 study by Robots.txt Analyzer (github.com/robots-txt-analyzer) confirmed that Wwwster does not crawl URLs listed in Disallow and respects Crawl-delay instructions when present.

🔍 Detection Indicators

The primary User-Agent string is wwwster/1.0, but variants such as wwwster (+https://www.wwwster.com/bot) and Mozilla/5.0 (compatible; wwwster/2.0) have been observed in Apache access logs. Behavioral fingerprints include a consistent request interval of 3–5 seconds and a pattern of fetching robots.txt before every new domain session. The bot also sends a custom header X-Wwwster-Bot: true on all requests, as noted in the official Wwwster developer guide.

📊 Data Usage

Collected data—including page titles, meta descriptions, heading structures, and HTTP status codes—is used to populate the Wwwster Dashboard, a SaaS platform that provides daily site health reports, broken link detection, and content change alerts. The data is also aggregated for trend analysis in the Wwwster Trend Report feature, but no raw page content is stored for AI training or search indexing, as stated in the company’s privacy policy (https://www.wwwster.com/privacy).

⚙️ Rate Limiting Policy

While Wwwster is a legitimate and rate‑limited bot, web administrators may implement threshold‑based blocking (e.g., more than 10 requests per minute from its IP ranges) to protect application resources during peak loads. This policy is recommended because even well‑behaved crawlers can aggregate to excessive traffic when multiple monitoring services target the same site simultaneously.

ⓘ 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.