A crawler monitors public website configurations, examining aspects like HTTPS enforcement, certificate expiry, TLS versions, security headers, cookie flags, and redirect destinations. This crawler's activity might appear in server logs, so the service has provided a dedicated page explaining its operations. The bot's behavior regarding visit frequency, robots.txt, Retry-After headers, and its originating IP address is detailed online. There are options to opt out of the crawler's checks, including a DNS TXT record method and the standard robots.txt file. No account or signup is required for these opt-out mechanisms. The data collected by the crawler is publicly accessible through a radar interface. Some features, such as the precise check frequency and continuous operation after tab closure, are still under development. The service aims to be transparent and responsive to user inquiries or issues. Feedback is encouraged to improve the crawler or its documentation. The bot will not perform actions that could compromise website security.