IP

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via ipip.net

出海IP

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DNS

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via ip-api.com

IPv4

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via ip-api

IPv6

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via ifconfig.me
$ curl ipip.ooo
$ curl -4 ipip.ooo
$ curl -6 ipip.ooo
$ curl ipip.ooo/country
$ curl -L ipip.ooo/dns
$ curl -L ipip.ooo/dnscountry