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: Mon, 30 Mar 2026 15:48:09 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=61C19E1900A2D209D97A52F6AC79C2EE~-1~YAAQIG4sFzmdXeecAQAAE1duPw9C181LtBwWrP33lqFLn5ln/krS1m12dSNOdw0wiwK4//BpYliok6LTG09xxtu+7CPrYJqUshImKX2e8pbJBTELRGkaqQIX49buyAExdfDwkTcwIqrCN0cND2IZVlzVBLwD1anz+z6cHebkMb5a7t9f1dRyp5PaDuUUgovHUzc7Wmq821u7hAaKrhnN98UUrpdYOw5Zr4bE9gx8fGIAzSb8DPx89N538vkUmDa57CaLy+OesCmYPoaKjZ8APQXfYngtknG6HbQIBlQC9lvyd5Y2kshbuUzK5kKy+9pH6v6LWqfVoyhFVGuiV1yXlYAdGVTAfWtrF92NMou1uyiL9SFkEdODgpuzk8z2dQ/XTZnWgppmVB6Q2ZPupvAvylT0os474Y5+jdRypTDwCIXd85/j7asw1UOmpQvpd6Vw3NygDWlvkdat3TBk~-1~-1~-1~-1~-1; Domain=.nba.com; Path=/; Expires=Tue, 30 Mar 2027 15:48:09 GMT; Max-Age=31536000; Secure
set-cookie: bm_sz=08D233AA458B0883ABEDEBDF93362BFC~YAAQIG4sFzqdXeecAQAAE1duPx8MU5yaocgUGvfdl/YIDY8A/iELbZ9qAgqDJbImwck5pWJfRCqB0InwTtlDorSDe/GDxZgL4XYmNs9FhlmAHN8pi2OfIGdIeYKckSxs27tbICHY+T7l4dUCuEgx8pvMwfseVOxRJ5hF2E1vIVBGNnF4lKhDUU5xSstiWrFt0XSuZQjz0t4x1N3BTr285SIsdpU+4ssZsUArxt5X9FNaQM5YD78+ZY4erSBhYsgX1II+Wwgc3Y2nhl2pPTuKu662X3rvI/29FDax89Axo91tDattlubH3kRjno3hBl2ZOOsrQUQNg3CIsZM2dpp7EN6sko/bN6kdmhRJ8arZe6JVxjcadkrPeP8kaMt+1VfC37d/zSs=~3748931~4468791; Domain=.nba.com; Path=/; Expires=Mon, 30 Mar 2026 19:48:09 GMT; Max-Age=14400

HTTP/2 200 
x-amz-version-id: q9rz4uxrv4W9aWq42XtvIaT2KxZ0E2cS
x-xss-protection: 1; mode=block
x-content-type-options: nosniff
x-frame-options: sameorigin
content-type: text/html
x-amz-request-id: DKTY3A5T6VSEQCFE
x-amz-server-side-encryption: AES256
etag: "657c1b16bd96357065ea9c68d553b85f"
x-amz-id-2: 8/9+HQTd1bwWIhxr/KPp6XXKAUexQEEIktQCJj2N0iZ01V54MZF2TRLLQBv6cjItAoXvZBeBR/Eikl0Lj1YCvIXQqBlEJWWz
cookie: nbaidentity=; cms-dev=; nlhasnbaid=; nlhasnbaauth=; region=; postal=
cache-control: max-age=30
date: Mon, 30 Mar 2026 15:48:09 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=A50A3EC37300C02CA0CACCB11DAC6764~-1~YAAQIG4sFz6dXeecAQAAnlduPw+F4PkBrNNouXU+Ud9iua2Mo18QCBxsF/VgSwL8KF+qzDiODoVhc6bEwPFNkU/GbEW5jObLRlG9JEGtBd4y0ZrgKW0q8MlOcHkJ25nLfArwpZWeFB+vFdAWZZCvcrEXUYpoJsXWYNBRyJ6jJZnf5MHI+EUy+DN2FjKul8d5Q5QIqgfTuPIFRw3REJUutT9+ZZqHO0xHY8Ce7FCerOwIhCtJ7Tf98mUMsRqigqbShTMYehLWbKoXMBiR2hHHL25vj0qivAdxjiBoHX+uNZIDyJow5uOVP6NThnYZX6W0vhcH0KERntg9K40ZLKq28sTNWK6ndmLs0Vkv8Sfs8WnnzHGM9qqvu+FA/688udQ/fpN1Y9iFU7R2gPIvr7TxC0IghbZlQ2fWuGh6IpqR6JgrR94pbB0yWfPnO7zrwWCVyxDCfF6+2lmgjHts~-1~-1~-1~-1~-1; Domain=.nba.com; Path=/; Expires=Tue, 30 Mar 2027 15:48:09 GMT; Max-Age=31536000; Secure
set-cookie: bm_sz=24524A2FCD0E71C6F96D0A76F3DE1AE9~YAAQIG4sFz+dXeecAQAAnlduPx8xl6AQIgyakAl+WbGAgu4A+fipfGYzbBl6jx9Td7PQU4avGAVY++V4QRd6eqD6/1ZBByiFq0aMtnwUihJ6/KdCcr1xxGOZOnt/huRtY1qH2VLTGrY8Gdbk30tl60AElztVJ60m4ynQNHviBkRetiE1uhI2OXH+ZKd+VmYBcB63qM6qHM1wsk0uhcFrgVABAMSKx7xrjm7wx/OFnd65vRg4j7k6BCdhWelM1v5wlhm3JTegAYEn+iTB4Pelp/1LiFu2z6jfsDnlbyAyhUxVzur2XCpJ78jhMpmVi3DmzQk0lEduR0NIy8qRzg4Fma+tIUFIcfPQURw8ifNOAJ35tQIZRLUjBZ29cK728pFqLyQnB5o=~3748931~4468791; Domain=.nba.com; Path=/; Expires=Mon, 30 Mar 2026 19:48:09 GMT; Max-Age=14400