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: 54.235.6.60. Find IP location for: 123.161.179.237, 116.224.189.58, 226.192.33.42, 153.99.172.242, 136.156.220.123, 151.156.66.128, 200.158.84.27, 166.138.152.199, 116.155.151.137, 206.10.255.194, 141.220.36.45.
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