Have you seen the 8.8.8.8 and 8.8.4.4 DNS servers? (http://code.google.com/speed/public-dns/docs/using.html)
# first request to google
$ dig @8.8.8.8 www.bradlanders.com
; <<>> DiG 9.6.0-APPLE-P2 <<>> @8.8.8.8 www.bradlanders.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20999
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.bradlanders.com. IN A
;; ANSWER SECTION:
www.bradlanders.com. 14400 IN A 69.163.164.23
;; Query time: 272 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Thu Jan 27 16:01:23 2011
;; MSG SIZE rcvd: 53
# first request to L3
$ dig @4.2.2.2 www.bradlanders.com
; <<>> DiG 9.6.0-APPLE-P2 <<>> @4.2.2.2 www.bradlanders.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62436
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.bradlanders.com. IN A
;; ANSWER SECTION:
www.bradlanders.com. 14400 IN A 69.163.164.23
;; Query time: 111 msec
;; SERVER: 4.2.2.2#53(4.2.2.2)
;; WHEN: Thu Jan 27 16:01:31 2011
;; MSG SIZE rcvd: 53
# second request to google
$ dig @8.8.8.8 www.bradlanders.com
; <<>> DiG 9.6.0-APPLE-P2 <<>> @8.8.8.8 www.bradlanders.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58197
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.bradlanders.com. IN A
;; ANSWER SECTION:
www.bradlanders.com. 14400 IN A 69.163.164.23
;; Query time: 171 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Thu Jan 27 16:02:47 2011
;; MSG SIZE rcvd: 53
# second request to L3
$ dig @4.2.2.2 www.bradlanders.com
; <<>> DiG 9.6.0-APPLE-P2 <<>> @4.2.2.2 www.bradlanders.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7408
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.bradlanders.com. IN A
;; ANSWER SECTION:
www.bradlanders.com. 14317 IN A 69.163.164.23
;; Query time: 35 msec
;; SERVER: 4.2.2.2#53(4.2.2.2)
;; WHEN: Thu Jan 27 16:02:54 2011
;; MSG SIZE rcvd: 53