What is an IPv6 readiness check?
An IPv6 readiness check determines whether a domain can be accessed over IPv6 by verifying DNS records and testing real IPv6 network connectivity.
IPv6 support
IPv6 checker FAQs
Clear explanations of how IPv6 works, what IPv6 readiness means, how to interpret AAAA records, and how to troubleshoot IPv6 connectivity issues.
How does an IPv6 checker work?
It checks for DNS AAAA records, attempts IPv6 connections, and verifies whether the site responds correctly over IPv6 without falling back to IPv4.
What is an AAAA record?
An AAAA record maps a domain name to an IPv6 address, serving the same role for IPv6 as an A record does for IPv4.
Is an AAAA record required for IPv6?
Yes. Without an AAAA record, a domain cannot be reached directly over IPv6.
What does “reachable over IPv6” mean?
It means the site can be accessed using IPv6 networking alone, confirming correct DNS, routing, firewall, and hosting configuration.
What does HTTPS over IPv6 mean?
HTTPS over IPv6 means the site can establish a secure TLS connection using IPv6. Certificates must be valid and correctly configured for IPv6 endpoints.
Can a site have IPv6 DNS but still fail IPv6?
Yes. DNS records may exist, but routing, firewall rules, load balancers, or server software may not fully support IPv6 traffic.
Can a site work on IPv4 but not IPv6?
Yes. Many sites remain IPv4-only or have incomplete IPv6 setups, causing failures for IPv6-only users.
Who benefits from IPv6 support?
IPv6 support benefits users on modern ISPs, mobile networks, cloud platforms, and IPv6-only environments, improving global reachability.
Does IPv6 improve performance?
IPv6 does not guarantee better performance, but it can reduce network complexity and improve routing efficiency in some environments.
Does IPv6 affect SEO?
IPv6 does not directly affect search rankings, but it improves accessibility and reach for users on IPv6-only networks.
Does my hosting provider need to support IPv6?
Yes. Full IPv6 support requires hosting infrastructure, load balancers, and firewalls to be correctly configured for IPv6 traffic.
Can firewalls block IPv6 traffic?
Yes. IPv6 often requires separate firewall rules, and misconfiguration is a common cause of IPv6 connectivity failures.
What is dual-stack networking?
Dual-stack networking allows a site to operate on both IPv4 and IPv6 simultaneously, ensuring maximum compatibility.
Is IPv6 required for the future internet?
IPv6 adoption continues to grow as IPv4 addresses are exhausted, making IPv6 an important part of long-term internet compatibility.
Does IPv6 affect user privacy?
IPv6 does not inherently reduce privacy, but address assignment methods and network policies influence how addresses change over time.
Does Velohost store IPv6 check data?
No. IPv6 checks are performed live and no domains, IP addresses, or results are stored or logged.
What are common IPv6 configuration issues?
Common issues include missing AAAA records, blocked IPv6 traffic, incomplete TLS configuration, and unsupported hosting environments.
What should I check if IPv6 fails?
Verify DNS records, confirm hosting IPv6 support, review firewall rules, test TLS certificates, and ensure routing is correctly configured.
Want to try it yourself? Run IPv6 checker or Inspect DNS records
Check IPv6 support instantly.