X-RAY // DNS // IPV6

IPV6
CHECK.

Check whether the domain publishes a public IPv6 (AAAA) address, for visitors on mobile networks and ISPs that already hand out IPv6.

Runs only this check. For all 33 checks at once, use the full Domain X-Ray. Public lookups only; nothing is stored on the server.

IPv6

WAITING

Enter a domain above to run this check.

01 // WHAT THE CHECK VERIFIES

What the check verifies

Checks whether the domain publishes a public IPv6 (AAAA) address.

02 // WHY IT MATTERS

Why it matters

Many ISPs and mobile networks already hand out IPv6. Without AAAA, those visitors depend on translation to IPv4 along the way.

03 // HOW TO READ THE RESULT

What each result means

OK: The domain publishes at least one AAAA with a public IPv6 address.
WARNING: The AAAA points to an IPv6 address that is not public, such as an internal or link-local network.
INFO: No AAAA: IPv6-only visitors reach the site through translation to IPv4 (NAT64) on the way.

ERROR and TIMEOUT mean the query did not finish (the source was down or slow), not a problem with the domain: run the check again.

04 // HOW TO FIX

How to fix

If the server or the CDN has IPv6, publish the AAAA on the root name and on www. On Cloudflare, with the proxy on, the edge already answers over IPv6. To check:

dig +short AAAA example.com
curl -6 -sI https://example.com/

Would rather have someone else do it? Bit Happens can fix this →

05 // CONTINUE

More checks in DNS and name servers

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