4 ms·

> [..] DOH increases privacy, security and sometimes even performance [..] Does anyone know how TLS over TCP can be faster than UDP?

• kevincox 8y ago
  I believe that big DNS responses will be faster because instead of establishing a TCP connection there is already a warm one ready to go. But yes, for the common case the performance will be the same.
  • jedisct1 8y ago
    UDP doesn't require any connection at all
    • kevincox 8y ago
      Yes, however DNS isn't purely UDP. It can fall back to TCP in a handful of situations.