🤖 Overview

thatrobotsite.com is a legitimate web crawler operated by the team behind the website ThatRobotSite.com, a specialized online tool that analyzes robots.txt files for domain owners and webmasters. The bot’s primary purpose is to periodically crawl publicly accessible websites to verify the accuracy and effectiveness of their robots.txt directives, then display the results on the ThatRobotSite platform for free public review. This service helps site administrators detect misconfigurations, blocking errors, and compliance issues with crawler policies.

🌐 Technical Behavior

The thatrobotsite.com crawler operates on a scheduled basis, typically revisiting each known domain every 24 to 48 hours unless a custom interval is configured. It requests robots.txt files via HTTP GET using HTTP/1.1, and it also fetches the root page and a small sample of subpages (usually fewer than 10 per crawl cycle) to confirm that the directives are being honored. The bot uses a limited set of IP addresses belonging to the hosting provider of ThatRobotSite, which are publicly listed on the website’s own documentation page. No authenticated sessions or cookies are used; all requests are made anonymously with standard headers.

📋 robots.txt Compliance

Documented evidence from the ThatRobotSite FAQ confirms that the bot fully honors Disallow directives found in any robots.txt file it visits. If a site blocks the bot via its own User‑Agent string, the bot will not crawl any pages from that domain. However, the bot does not parse Crawl‑Delay directives because its request rate is already low (one request every 10 seconds maximum per domain). This behavior is verified by community reports and third‑party audits of the service.

🔍 Detection Indicators

The official User‑Agent string is Mozilla/5.0 (compatible; thatrobotsite.com/1.0; +https://thatrobotsite.com/bot). Additional fingerprinting shows it always sends a User-Agent header with that string and a From header containing the contact email [email protected]. The bot never modifies its User‑Agent and does not impersonate other crawlers. Server logs can also detect it by the unusually low request frequency and the exclusive request for /robots.txt followed by the homepage.

📊 Data Usage

Collected data—specifically the robots.txt content and the server response codes for test URLs—is aggregated and anonymized, then displayed on the ThatRobotSite dashboard for site owners. The platform uses this data to generate compliance reports, flag outdated rules, and provide recommendations. No personal data, page content, or proprietary information is stored; only the robots.txt file and HTTP status codes are retained for 30 days.

⚙️ Rate Limiting Policy

Although the crawler is non‑malicious and respects robots.txt, administrators may choose to rate‑limit it to prevent unnecessary load during peak traffic hours. The policy rationale is that while the bot’s crawl rate is low, it still consumes server resources and can be throttled using standard HTTP 429 Too Many Requests responses without harming the service’s functionality.

ⓘ 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.