For each of these I'll give an example domain and then the provider names.
Domain: discordapp.com
Providers: cloudflare
Domain: gizmodo.com
Providers: awsdns-14, awsdns-13, awsdns-15, public, awsdns-37
Domain: github.com
Providers: awsdns-01, awsdns-21, awsdns-32, awsdns-52
Domain: yahoo.com
Providers: yahoo
Domain: google.com
Providers: google
Domain: qq.com
Providers: qq
The last 3 seem like they have their own private nameservers as opposed to using a DNS service so those cases would probably need a different functionality in place to handle them rather than adding new provider txts (adding a new list of nameservers doesn't seem to be the right way to go to cover those edge cases)
For each of these I'll give an example domain and then the provider names.
Domain: discordapp.com
Providers: cloudflare
Domain: gizmodo.com
Providers: awsdns-14, awsdns-13, awsdns-15, public, awsdns-37
Domain: github.com
Providers: awsdns-01, awsdns-21, awsdns-32, awsdns-52
Domain: yahoo.com
Providers: yahoo
Domain: google.com
Providers: google
Domain: qq.com
Providers: qq
The last 3 seem like they have their own private nameservers as opposed to using a DNS service so those cases would probably need a different functionality in place to handle them rather than adding new provider txts (adding a new list of nameservers doesn't seem to be the right way to go to cover those edge cases)