Does your website work over IPv6?
Enter a domain. We look up its IPv4 and IPv6 addresses, request the home page once over each protocol, and check its name servers and mail servers for IPv6.
Website test
Questions and answers
What does this test check?
The IPv4 (A) and IPv6 (AAAA) records of the name and of its www partner, one request for the home page over each protocol, and whether the domain's name servers and mail servers have IPv6 addresses.
Why should a website have IPv6?
A growing share of visitors, above all on mobile networks, connect over IPv6. Without it they depend on their provider's translation; with broken IPv6 their browser tries it first and waits. Working IPv6 is the fastest path for them.
How is the score calculated?
AAAA record 2 points, home page answers over IPv6 4, www name as ready as the bare name 1, a name server with IPv6 2, a mail server with IPv6 (or no mail) 1. An AAAA record that does not work scores 0: it is worse for visitors than none.
What do you store about the tested site?
Nothing beyond the result, which is kept for 10 minutes so the page can show it. The test requests the home page once over each protocol, identifies itself as CysmosSiteCheck and follows no redirects.