IPv6 test is described as 'IPv6-test.com is a free service that checks your IPv6 and IPv4 connectivity and speed. Diagnose connection problems, discover which address(es) you are currently using to browse the Internet, and what is your browser's protocol of choice when both v6 and v4 are available' and is an website in the network & admin category. There are more than 10 alternatives to IPv6 test, not only websites but also apps for iPhone, iPad, Self-Hosted and Apple TV. The best IPv6 test alternative is IP Guide, which is free. Other great sites and apps similar to IPv6 test are ip.me, whatismyip.cc, What is My IP Address and MyIP.Coffee.
An IP address is a unique identifier for internet-connected devices, facilitating communication and revealing geographic and ISP information associated with the device.
IP Address Today is the most popular Self-Hosted alternative to IPv6 test.
If your ISPs and servers support IPv6 but a website you visit which only support IPv4. This will lead to issues like your IPv6 leaking.
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