google-app-engine – Naked Domain on Registro.br not redirecting to www

Question:

I have an app hosted on Google Appengine and I'm using my own domain. Even after editing the DNS zone (about 5 days ago) the naked domain is still not redirected to the www.

Here are the settings in Registro.br.

Nome                      Tipo          Dados
example.com.br               A      216.239.32.21
example.com.br               A      216.239.34.21
example.com.br               A      216.239.36.21
example.com.br               A      216.239.38.21
www.example.com.br       CNAME      ghs.googlehosted.com

Here are the settings in Google Apps:

Primary Domain
Redirect the naked domain http://example.com.br to http://www.example.com.br

Answer:

I added the following IPv6 values ​​and now the naked domain redirect works:

Nome                 Tipo     Dados
example.com.br       AAAA     2001:4860:4802:32:0:0:0:15
example.com.br       AAAA     2001:4860:4802:34:0:0:0:15
example.com.br       AAAA     2001:4860:4802:36:0:0:0:15
example.com.br       AAAA     2001:4860:4802:38:0:0:0:15

I don't know if it's because the BR record takes a long time to update the DNS values ​​or if the IPv6 values ​​were really needed.

IPv6 values ​​were found in this Google Apps Support article .

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