Find the Web Server that a web site runs on

This program detects the web server that a site is running on.


example: facebook.com

ERROR: Web server not shown in header.

HTTP/2 302 
content-length: 0
location: https://www.nba.com/warriors/
date: Wed, 07 Jan 2026 23:45:24 GMT
x-frame-options: sameorigin
x-xss-protection: 1; mode=block
x-content-type-options: nosniff
strict-transport-security: max-age=86400
set-cookie: _abck=F146D092EBC4AB05100CC7CBE7125AAC~-1~YAAQjhMoF5n92CmbAQAAktDZmg/nD7yhLI5jHvZtLHxFi9uWRUdgsB41LyXlHcjup+gU8mGJ1zU3ttQjWu4J6qePO4C5q+IxDk/s7OBNvO+MW3sU2/8OCc7brqyOJ2dIPM05AgTsOOJLQk2Hg24Kb0es7lskX75+F5qxDfi2wIfaCq6wZUlR5dmWB0dMwmBFA4UrjvdpXO7WeWggmpSjzgQ65vz+S+/JsOmugBJqmkVUsNu1CfAPxuzgnEqIAETKV+BZ3O2iLoSj9Nh4scgtjnG1ANIZU5WHSAOxiAZ1tSHppQvpxW0huo1znYT2R4k9+7FscMx//E2HptXqLG6qVr1QVIrWHS7uWrND8bk5cghA/EPNgfea4KdPgSzMhuW8f7OfuenKAL1pT1TG6mAJAZqiz8ODS0iDgMyvyI0+eeFSFr5F4cDYt35ZPMsCEM7ks7V+scD8TgT1gxQ=~-1~-1~-1~-1~-1; Domain=.nba.com; Path=/; Expires=Thu, 07 Jan 2027 23:45:24 GMT; Max-Age=31536000; Secure
set-cookie: bm_sz=2EF21095F9876D672C9AF603BA6F9090~YAAQjhMoF5r92CmbAQAAktDZmh4FEDuNrj73T0ZLNzIG/0jGS/yipdf5maRA8d88itDVwJpetkaQ++RgoNO22ACB4BKx5W28CLnrOorOWW0Ift10OGOCogNqFcP+3T5AIiU25QseGWgb8eYe3a0Hzq+WJq8z84njDwwmNYFfxErdoYYBqy3dPaKiRO6G+oQjB1bwH3yIh28CPKueLhIpeKkV8SHWC4H9F8T+aZo0/4huwnaLajy7ynVDqmLWS1zpu5Pf/CUTD1v5srZxlBKx5/XBYqq5XoH9VMRQYyiNWijKdTM0zFdt10/g6OcET4M0n8gBqil4DMzuVE/YvsjneevxxgLxmV4kbwlVxDyidv0TFfdc+LcUtxwSecMe6OS0ZnEo6r8=~3160119~3294532; Domain=.nba.com; Path=/; Expires=Thu, 08 Jan 2026 03:45:24 GMT; Max-Age=14400

HTTP/2 200 
x-amz-server-side-encryption: AES256
content-type: text/html
x-amz-id-2: XxYeq2Ncz0hEDAobs9E+NGU9QvXe59nascD1EtGztnSp5J6vEW+qUx744dyQEunjE7G4sN3TmYKG3pP+8gqrPo1ch03hc+k7
x-amz-version-id: 2192_StyZ9RkVH9mIu8pXVtfLNzfiTKf
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
x-amz-request-id: 50Q3JVFH1NCYC373
etag: "20b4fe70d6c58cb80cd6bdb436140513"
x-frame-options: sameorigin
cookie: nbaidentity=; cms-dev=; nlhasnbaid=; nlhasnbaauth=; region=; postal=
cache-control: max-age=30
date: Wed, 07 Jan 2026 23:45:24 GMT
x-frame-options: sameorigin
x-xss-protection: 1; mode=block
x-content-type-options: nosniff
strict-transport-security: max-age=86400
set-cookie: _abck=A3E8E4481DAFF8DFAD0F217CE4C04AB3~-1~YAAQjhMoF5392CmbAQAAD9HZmg+1vGL3LMVw19Gc6F3InXUB1eG000Y5CosWasMpiNxTM+rmhS6keauWsHq12135G3+Ba8Uox0KW9rkdUDuzW9kB+8e8W0XqcinAFfuDTwEq4KipH3k+klTJYuIsIeRsqbk5LRZ2roJBtGF/u2SFYCSQzfSmaRuMjkQWOUtubUK6k72TiTrxpfbGqeVsyCenRIhv5q+fT6KI53V8QQaqgfSvJfNi1p/E832+UFZdcOopUL9aCgYS0JbNo2JEh+4ZX/7CVRr93yYG+izrTigf93HLHNGpTRQulIAK4ksXHcngYXAz0lJOC8o63CWZv9pXMlz8de6L2DKbe4VsbHkKbGMJYdKFBl/EYYV1HZK6XuRb6uMLsZ4vZiY0S32gjosYUvd8KuFmL9gX/UK9gti31qQdBLXWYYyOTAanLcem0tBYzAd4vcTtmxY=~-1~-1~-1~-1~-1; Domain=.nba.com; Path=/; Expires=Thu, 07 Jan 2027 23:45:24 GMT; Max-Age=31536000; Secure
set-cookie: bm_sz=AA122783E24049AEA012731FE977FA08~YAAQjhMoF5792CmbAQAAD9HZmh4D3+93rR9ZNE22A25H+Lte3ZyT1Uu26nvM5RF6uj3PEfvjv+iNGJs3NycjMZQ0490VlLD5Pn6UDKkpzcwlUatE0u2Hri1VN9cCNVhDCPjEEI2SSkfiaKPG7iEhqa9ZuwAgIa+n9JG3ObUY9Wj6OeCfzT2XiogPCiBCPkL7TXZ0367f8+kAtxWOT9rjhiE8ylGz9y9wrw1TD/o3S5zwmBA0EqUNO6WHFPzuTjeTbzzPF0nB9Km+4NqWpQS0aZqPP1EjChUFcBznIrsiS24cgDCMjiQrSZWJjeNqYsXnEZ5lA3hEx6TwC3pcH7QjBuBhoikppuS0MkwV+HWi/bApoIUKMrL30tzRsaJDt1TgqSd4oDk=~3160119~3294532; Domain=.nba.com; Path=/; Expires=Thu, 08 Jan 2026 03:45:24 GMT; Max-Age=14400