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- Port Scanner: Scan for opened IP ports. - Ping: Batch ping IP list. - Websocket Client：Test or debug Websocket server behavior. - Websocket Server：Test or debug the behavior of any Websocket client. - HTTP Client：Test and debug HTTP protocol, we can customize the content of the HTTP request, including the request method, request header fields, and view the returned results in various forms. - HTTP Server：Build your own HTTP static web server with one click, easily set the website root directory path. - TCP Client：Test or debug tcp server behavior. - TCP Server：Test or debug the behavior of any TCP client. - UDP：Debug or test udp communication. - Whois：Query Whois information that comes from ICANN. - DNS: lookup DNS information on the DNS server.