App Store Rejection Tls Error In Ipv6 Only Environments 4e9c62 - Supabase

If your App Store submission is rejected with a 'TLS error' when tested in an IPv6-only environment, often citing a lack of AAAA records, it typically indicates application-level issues rather than a Supabase configuration problem.

Why does this happen?

Supabase projects are designed for compatibility with IPv6-only NAT64/DNS64 environments through automatic IPv4-to-IPv6 translation. This means explicit AAAA records are not required for your *.supabase.co domain. The 'TLS error' usually points to how the application handles networking requests, which can interfere with this automatic translation.

How to resolve this issue

Ensure you're using hostnames, not IP addresses - Use project-ref.supabase.co everywhere in your code. See Supporting IPv6 DNS64/NAT64 Networks
Use high-level networking APIs like URLSession that handle IPv6 automatically. See URLSession Documentation
Review your App Transport Security settings. See Preventing Insecure Network Connections
Test your app in an IPv6-only environment using Apple's Network Link Conditioner. See Testing for IPv6 DNS64/NAT64 Compatibility