Name Resolution Issues - iFood Brazil

Problem:

Food delivery application (iFood) with issues when using 1.1.1.1 DNS. Sometimes the application won’t work, sometimes it works.

I followed the Have problems with 1.1.1.1? *Read Me First*

Diagnostics:

https://cloudflare-dns.com/help/#eyJpc0NmIjoiWWVzIiwiaXNEb3QiOiJObyIsImlzRG9oIjoiWWVzIiwicmVzb2x2ZXJJcC0xLjEuMS4xIjoiWWVzIiwicmVzb2x2ZXJJcC0xLjAuMC4xIjoiWWVzIiwicmVzb2x2ZXJJcC0yNjA2OjQ3MDA6NDcwMDo6MTExMSI6Ik5vIiwicmVzb2x2ZXJJcC0yNjA2OjQ3MDA6NDcwMDo6MTAwMSI6Ik5vIiwiZGF0YWNlbnRlckxvY2F0aW9uIjoiR1JVIiwiaXNXYXJwIjoiTm8iLCJpc3BOYW1lIjoiQ2xvdWRmbGFyZSIsImlzcEFzbiI6IjEzMzM1In0=


nslookup -class=chaos -type=txt id.server 1.1.1.1
Servidor: one.one.one.one
Address: 1.1.1.1

Não é resposta autoritativa:
id.server text = “GRU”


nslookup -class=chaos -type=txt id.server 1.0.0.1
Servidor: one.one.one.one
Address: 1.0.0.1

Não é resposta autoritativa:
id.server text = “GRU”


There are two names that I found with problems (not sure if there are others):

1. marketplace.ifood.com.br

https://dnsviz.net/d/marketplace.ifood.com.br/dnssec/

nslookup marketplace.ifood.com.br 1.1.1.1
Servidor: one.one.one.one
Address: 1.1.1.1

*** one.one.one.one não encontrou marketplace.ifood.com.br: Server failed


nslookup marketplace.ifood.com.br 1.0.0.1
Servidor: one.one.one.one
Address: 1.0.0.1

*** one.one.one.one não encontrou marketplace.ifood.com.br: Server failed


nslookup marketplace.ifood.com.br 8.8.8.8
Servidor: dns.google
Address: 8.8.8.8

Não é resposta autoritativa:
Nome: e3523.dscb.akamaiedge.net
Addresses: 2600:1419:d000:1af::dc3
2600:1419:d000:1a9::dc3
2600:1419:d000:1a4::dc3
2600:1419:d000:1a7::dc3
2600:1419:d000:1b0::dc3
23.216.185.242
Aliases: marketplace.ifood.com.br
ifood.com.br.edgekey.net


2. wsloja.ifood.com.br

https://dnsviz.net/d/wsloja.ifood.com.br/dnssec/
nslookup wsloja.ifood.com.br 1.1.1.1
Servidor: one.one.one.one
Address: 1.1.1.1

*** one.one.one.one não encontrou wsloja.ifood.com.br: Server failed


nslookup wsloja.ifood.com.br 1.0.0.1
Servidor: one.one.one.one
Address: 1.0.0.1

*** one.one.one.one não encontrou wsloja.ifood.com.br: Server failed


nslookup wsloja.ifood.com.br 8.8.8.8
Servidor: dns.google
Address: 8.8.8.8

Não é resposta autoritativa:
Nome: e3523.dscb.akamaiedge.net
Addresses: 2600:1419:d000:1a4::dc3
2600:1419:d000:1a1::dc3
2600:1419:d000:19c::dc3
2600:1419:d000:198::dc3
2600:1419:d000:19a::dc3
23.216.185.242
Aliases: wsloja.ifood.com.br
ifood.com.br.edgekey.net


Few minutes later:

nslookup marketplace.ifood.com.br 1.1.1.1
Servidor: one.one.one.one
Address: 1.1.1.1

Não é resposta autoritativa:
Nome: e3523.dscb.akamaiedge.net
Addresses: 2600:1419:b400:1af::dc3
2600:1419:b400:1ad::dc3
2600:1419:b400:1b1::dc3
2600:1419:b400:181::dc3
2600:1419:b400:1ae::dc3
23.200.220.106
Aliases: marketplace.ifood.com.br
ifood.com.br.edgekey.net

But see that the IPs addresses are different from the Google DNS?

This is a consistent behavior both running the nslookup and using the application. I need to refresh the app several times in order to the results show up.

Any ideas on how to solve this?

Oi @nicolas.suzuki!

marketplace.ifood.com.br | DNSViz shows:

Notices
Errors (2)
Warnings (12)

wsloja.ifood.com.br | DNSViz shows:

Notices
Warnings (12)

Please notify iFood of these issues.

Obrigado!

Thank you for your response! I tried contacting them, but I think they will never reply me back.

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