[tor-talk] dnsleaktest.com results - why so many DNS servers?

[Aaron Whiteman]

I understand that the exit node server does the DNS resolution.  I just wanted to clarify a couple of things when using dnsleaktest.com

I am using 31.172.8.10 which is chaoscomputerclub18.

I assume there are 8 DNS servers (see below) 'just in case' several collapse simultaneously.  Correct?

And, I suppose, it doesn't matter if requests are logged e.g. by Level 3 Communications or Google because no-one knows who the Tor client (me) is.  

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We detected the 8 DNS servers listed below.

IP:    31.172.8.10

Hostname:    dns-dus-001.rrbone.net
ISP:    rrbone UG (haftungsbeschraenkt)
Country:    Germany
IP:    77.247.176.114

Hostname:    ns1.dbn.nforce.nl
ISP:    NForce Entertainment B.V.
Country:    Netherlands
IP:    74.125.78.91

Hostname:    ey-in-f91.1e100.net
ISP:    Google
Country:    Netherlands
IP:    194.109.76.99

Hostname:    resolver1-e2.xs4all.net
ISP:    XS4ALL Internet BV
Country:    Netherlands
IP:    194.109.218.60

Hostname:    xyzzy.xs4all.nl
ISP:    XS4ALL Internet BV
Country:    Netherlands
IP:    194.109.76.101

Hostname:    resolver3-d2.xs4all.net
ISP:    XS4ALL Internet BV
Country:    Netherlands
IP:    4.68.25.4

Hostname:    4.68.25.4
ISP:    Level 3 Communications
Country:    United States
IP:    74.125.18.144

Hostname:    ee-in-f144.1e100.net
ISP:    Google
Country:    Germany