Test whether any domain supports IPv6. Look up AAAA and A records to see all IPv6 and IPv4 addresses and verify dual-stack compatibility.
Queries DNS for AAAA records to find all IPv6 addresses associated with a domain.
Simultaneously resolves A records to show IPv4 alongside IPv6. See if a site runs dual-stack or IPv4-only.
Identifies whether a domain supports both IPv4 and IPv6 simultaneously for future-proof accessibility.
Shows all resolved addresses. Load-balanced and CDN-backed domains often return multiple IPs.
Accepts full URLs or bare domains. Automatically strips protocols, paths, and ports.
DNS lookups complete in milliseconds. Get IPv6 compatibility results within seconds, no registration needed.
Type or paste any domain or URL. The tool automatically extracts the hostname.
Click Check IPv6 to query DNS for both AAAA (IPv6) and A (IPv4) records.
See IPv6 support status, all resolved addresses, and dual-stack compatibility.
IPv6 adoption has accelerated significantly. Major mobile carriers, cloud providers, and CDNs now serve traffic over IPv6 by default. Google reports that over 45% of its traffic comes from IPv6 clients.
For proxy users, knowing whether a target supports IPv6 matters. If a website only accepts IPv4, you need an IPv4-capable proxy. If it supports dual-stack, you have flexibility in which protocol to use for your requests.
Websites behind modern CDNs like Cloudflare or AWS CloudFront almost always support IPv6. However, many enterprise and legacy systems remain IPv4-only. This checker helps you determine the right proxy configuration for any target.
SpyderProxy supports both IPv4 and IPv6 across all proxy types, so you can reach any target regardless of its protocol support.
IPv6 is the latest Internet Protocol, using 128-bit addresses to provide virtually unlimited unique addresses — solving the IPv4 exhaustion problem.
An AAAA (quad-A) DNS record maps a domain to an IPv6 address, just as an A record maps to IPv4. If a domain has AAAA records, it can be reached over IPv6.
IPv6 adoption is growing as IPv4 addresses run out. Many mobile carriers prefer IPv6. Sites without IPv6 may become slower or unreachable for some users.
Dual-stack means supporting both IPv4 and IPv6 simultaneously. A domain with both A and AAAA records is dual-stack capable, allowing connections from either protocol.
It depends on your proxy provider. SpyderProxy’s residential and datacenter proxies handle both IPv4 and IPv6 traffic.
Yes, completely free with no registration. You can check as many domains as needed. Results reflect the current DNS state.
SpyderProxy supports both IPv4 and IPv6 across all proxy types.
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