Test any URI, by sending custom HTTP request and checking the HTTP response. TestURI.org is a free web-sniffer.net alternative.

Page URI/URL
HTTP version:  HTTP/1.1   HTTP/1.0
User agent:  
HTTP protocol is descibed in RFC 2616.
Your IP is: 54.92.232.249. Find IP location for: 137.162.250.253, 32.10.43.59, 181.106.122.254, 184.72.94.216, 53.137.23.35, 139.194.189.189, 62.128.160.116, 198.207.49.253, 201.170.169.139, 194.141.254.189, 155.202.39.106.