IPv6 Compatibility Checker

IPv6 compatibility refers to a domain’s ability to support the IPv6 protocol, which is the next-generation internet protocol designed to replace IPv4. This includes having AAAA DNS records that map the domain to IPv6 addresses, web servers that can handle IPv6 connections, and network infrastructure that supports IPv6 traffic.

IPv6 adoption is crucial because IPv4 addresses are nearly exhausted. The IPv6 protocol provides a vastly larger address space, improved security features, and better performance for modern internet applications. Websites with IPv6 compatibility ensure they remain accessible as more networks transition to IPv6.

Our IPv6 compatibility checker performs multiple tests: it queries AAAA DNS records to see if the domain has IPv6 addresses, attempts to connect to the domain using IPv6, and checks if the web server responds to IPv6 requests. The tool provides a comprehensive analysis of the domain’s IPv6 readiness.

AAAA records (pronounced “quad-A”) are DNS records that map a domain name to an IPv6 address, similar to how A records map to IPv4 addresses. If a domain has AAAA records, it means the domain is configured to be accessible over IPv6 networks.

Yes, most modern websites support dual-stack configuration, allowing them to handle both IPv4 and IPv6 connections simultaneously. This ensures compatibility with all internet users regardless of whether they’re on IPv4 or IPv6 networks.