Headers of http://whatismyip.org

HTTP/1.1 200 OK
Date
Thu, 01 Jun 2017 02:38:02 GMT
Server
Apache/2.2.22 (Debian)
X-Powered-By
PHP/5.4.36-0+deb7u3
Set-Cookie
ipcook=1; expires=Thu, 01-Jun-2017 02:48:02 GMT
Vary
Accept-Encoding
Content-Length
3830
Connection
close
Content-Type
text/html