3 ms·
It seems like this includes up to 500 bytes of padding in a request. Is there a reason for that?
by nickodell 10y ago
It seems like this includes up to 500 bytes of padding in a request. Is there a reason for that?
- pjf 10y agoYes, the random padding (which is optional) is to counter-measure possible side-channel privacy attacks that could infer the domain name from the packet sizes. The Google documentation explains that (look for "random_padding") at https://developers.google.com/speed/public-dns/docs/dns-over-https https://developers.google.com/speed/public-dns/docs/dns-over...