ERROR Opening: https://*.com - end of file reached

[hktalent]

$ whatweb --url-prefix https:// 51pwn.com ERROR Opening: https://51pwn.com - end of file reached

but, here is ok

[bcoles]

51pwn.com is probably blocking the whatweb user agent.

./whatweb --user-agent "Mozilla/5.0" --url-prefix https:// 51pwn.com
https://51pwn.com [200 OK] Bootstrap, Country[UNITED STATES][US], HTML5, IP[199.180.115.7], JQuery, PoweredBy[M], Script[text/javascript], Strict-Transport-Security[max-age=15552000; includeSubDomains], Title[51pwn,exploit-poc], UncommonHeaders[x-dns-prefetch-control,x-download-options,x-content-type-options,referrer-policy], X-Frame-Options[SAMEORIGIN], X-XSS-Protection[1; mode=block]

./whatweb --url-prefix https:// 51pwn.com
ERROR Opening: https://51pwn.com - end of file reached

Use of --url-prefix is unrelated.

./whatweb --user-agent "Mozilla/5.0" https://51pwn.com
https://51pwn.com [200 OK] Bootstrap, Country[UNITED STATES][US], HTML5, IP[199.180.115.7], JQuery, PoweredBy[M], Script[text/javascript], Strict-Transport-Security[max-age=15552000; includeSubDomains], Title[51pwn,exploit-poc], UncommonHeaders[x-dns-prefetch-control,x-download-options,x-content-type-options,referrer-policy], X-Frame-Options[SAMEORIGIN], X-XSS-Protection[1; mode=block]

./whatweb https://51pwn.com
ERROR Opening: https://51pwn.com - end of file reached

[hktalent]

@bcoles thanks but，However, the components used are not fully enumerated

[bcoles]

the components used are not fully enumerated

WhatWeb plugins use various signatures for identifying web applications, hardware, JavaScript libraries, etc. If there's no WhatWeb plugin to detect something then it won't be detected.

wappalyzer focuses more on JavaScript components than WhatWeb, and the existing WhatWeb plugins for JavaScript libraries have not been updated in a long time.

[hktalent]

@bcoles I was curious how he recognized nodejs webserver。 http://wappalyzer.com/