What is IPv6 and why does my website need it?

IPv6 (Internet Protocol version 6) is the latest version of the Internet Protocol, replacing IPv4 which is running out of addresses. Your website needs IPv6 because:IPv4 addresses are exhausted; many ISPs only assign IPv6 to new usersUsers on IPv6-only networks cannot access IPv4-only websitesGoogle and search engines favor IPv6-enabled websitesBetter performance by eliminating NAT translation overhead

How is the IPv6 Ready score calculated?

The IPv6 Ready score (0-100) is based on 4 criteria:AAAA Web Server Records (40 points): Main domain has AAAA record pointing to IPv6 addressWWW Subdomain AAAA (10 points): www.domain also has its own AAAA recordNameserver IPv6 (20-30 points): NS have AAAA records, bonus if all NS support IPv6IPv6 Connectivity (20 points): Website is accessible via HTTPS over IPv680-100: IPv6 Ready | 50-79: Partial | 1-49: Limited | 0: No IPv6

What is an AAAA record?

An AAAA record (also called "quad-A") is a DNS record similar to an A record, but points to an IPv6 address instead of IPv4:A record: Maps domain to IPv4 address (e.g., 157.240.211.35)AAAA record: Maps domain to IPv6 address (e.g., 2a03:2880:f115:188:face:b00c:0:25de)To enable IPv6 for your website, add AAAA records in your DNS pointing to your web server's IPv6 address.

How do I make my website support IPv6?

To enable IPv6 for your website:Choose IPv6-capable hosting: Ensure your hosting provider assigns an IPv6 address to your serverAdd AAAA records: Create AAAA records in DNS for your domain and www subdomainConfigure web server: Ensure Nginx/Apache listens on both IPv4 and IPv6Check firewall: Open ports 80/443 for IPv6 trafficUse IPv6-capable DNS: Your nameservers should also have AAAA records

Why does the IPv6 connectivity test fail even though I have AAAA records?

Having AAAA records doesn't guarantee your website is reachable via IPv6. Common causes:Firewall blocking IPv6: Firewall only allows IPv4 connections on ports 80/443Web server not binding IPv6: Nginx/Apache only listens on IPv4CDN/Proxy lacks IPv6: If using a CDN, it needs to support IPv6IPv6 routing issues: Network path from test server to your website is brokenIncorrect AAAA record: IPv6 address in AAAA is wrong or not active

IPv6 Ready Check

How to Use IPv6 Ready Check

When to Use IPv6 Ready Check

Technical Information

Frequently Asked Questions