🤖 Overview

FreeWebMonitoring SiteChecker is a legitimate web crawler operated by FreeWebMonitoring Inc., a company founded in 2019 that provides website uptime and performance monitoring services. The bot’s primary purpose is to periodically request pages from subscribed customer websites to measure availability, response time, and page size, feeding data into the FreeWebMonitoring dashboard and alerting system. According to the official documentation at freewebmonitoring.com, the bot is explicitly designed for benign monitoring and is not used for content harvesting or AI training.

🌐 Technical Behavior

The SiteChecker bot performs HTTP/HTTPS requests using both GET and HEAD methods, typically targeting a single URL per customer at configurable intervals ranging from every 5 minutes to every 24 hours. Crawl patterns are sequential and limited to exactly one request per monitored endpoint per cycle, with no recursive crawling of internal links. The bot’s IP ranges, published in the FAQ at freewebmonitoring.com/ip-list, include addresses from AS13335 (Cloudflare) and AS16509 (Amazon Web Services), as FreeWebMonitoring uses a multi‑cloud infrastructure. Requests follow standard HTTP/1.1 and HTTP/2 protocols, and the bot respects the Cache‑Control headers sent by the server.

📋 robots.txt Compliance

FreeWebMonitoring’s official documentation (https://freewebmonitoring.com/robots.txt-policy) states that the SiteChecker fully honors Disallow directives in robots.txt. If a monitored URL is disallowed, the bot will skip it and log a compliance note. However, because the service is designed to monitor only explicitly configured URLs, accidental crawling of disallowed paths is extremely rare and is corrected within the next check cycle.

🔍 Detection Indicators

The primary User‑Agent string is Mozilla/5.0 (compatible; FreeWebMonitoring/1.0; +https://freewebmonitoring.com/bot). Additional variants include SiteChecker/2.0 and FreeWebMonitoring-SiteChecker/3.0. Behavioral fingerprints include a fixed request timing pattern (exact intervals) and a consistent Accept: */* header. The bot does not include any custom X‑headers unless configured by the customer for private monitoring setups.

📊 Data Usage

Collected data is used exclusively for website monitoring analytics: uptime percentage, response time averages, and page size trends are displayed on the customer’s dashboard. The data is never sold to third parties nor used for any AI training or search indexing. FreeWebMonitoring’s privacy policy (https://freewebmonitoring.com/privacy) explicitly forbids reselling or repurposing monitoring logs.

⚙️ Rate Limiting Policy

Rate limiting of FreeWebMonitoring SiteChecker is recommended because its fixed‑interval requests can inadvertently trigger WAF thresholds or resource exhaustion on low‑capacity servers. A policy of threshold‑based blocking (e.g., rate‑limit after 10 requests per minute from the bot’s IP) ensures the monitoring service remains operational without degrading server performance for human visitors.

ⓘ 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.