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This is where the Client Subnet edns extensions come in handy. This allows the DNS provider to pass along the /24 the users IP address is in. With an extra cac
by X-Istence 8y ago
This is where the Client Subnet edns extensions come in handy. This allows the DNS provider to pass along the /24 the users IP address is in.
With an extra caching key, this can even be cached.
See https://developers.google.com/speed/public-dns/docs/ecs https://developers.google.com/speed/public-dns/docs/ecs
- paranoidrobot 8y agoAnd that also only helps if your DNS provider and the client's DNS servers also pass along that information correctly.