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How to check if a website supports IPv6

calendar_today September 29, 2026 person John Hale domain trueproxies

A website supports IPv6 when its hostname publishes an AAAA record and its server answers on that address. Look up the record with dig or nslookup, confirm a real connection with curl -6, then test every host the page loads, because one IPv4-only script, font or API can break the page over IPv6.

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