IPv6 Compatibility Checker
Will a website work with IPv6 proxies? We look up its IPv6 addresses, open a real IPv6 connection from our server, and check the extra hosts its logins and apps use.
Popular sites and IPv6
Which big sites work on IPv6 proxies. Re-tested from our server every 12 hours, last at 10/6/2026, 4:31:32 PM.
Questions
What does IPv6 compatible mean?
The site publishes an IPv6 address (an AAAA record) and actually answers on it. We don't just read DNS: our server opens a real IPv6 connection and loads the page.
Why does it matter for IPv6 proxies?
An IPv6 proxy can only reach sites that speak IPv6. If the site, or the hosts it loads logins and images from, is IPv4 only, the request fails through an IPv6-only proxy.
How do you know if a site accepts IPv6?
Two checks. First DNS: does the site publish an IPv6 address (an AAAA record)? If not, the answer is no. Second, we really connect to that IPv6 address from our server and load the page. If it answers, the answer is yes.
What does the warning mean?
A website loads parts from other addresses, like a login server, images or an app API. The answer is still yes for the site you typed, but if one of those other addresses is IPv4 only, that part won't work through an IPv6-only proxy. For example Apple's site accepts IPv6 but its Apple ID login doesn't.
Does yes mean IPv6 proxies will never be blocked?
No. Yes means the site accepts IPv6 connections. Whether it trusts a particular IPv6 range is a separate question; test your proxies on it with our Proxy Checker.
Why are IPv6 proxies cheaper?
There are billions of IPv6 addresses, so each one costs very little. That makes them great for large-scale work on sites that support IPv6.
How often are the popular results updated?
Every 12 hours. Checking a single site always runs fresh (results are kept for 30 minutes).