echoip.de
IPv4 URL: 4.echoip.de
IPv6 URL: 6.echoip.de
What is my IP address?
Lookup IP address
$ curl -L echoip.de
1.2.3.4
Resolve hostname
$ wget -qO- echoip.de/hostname
www.example.de
Unsigned long integer representation
$ curl -L 4.echoip.de/long
16909060
(IPv4 only)
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