3 ms·
In researching web performance DNS configurations issues are common problem. It is usually related to www.foo.com and foo.com being configured differently. Thi
by bbuffone 16y ago
In researching web performance DNS configurations issues are common problem. It is usually related to www.foo.com and foo.com being configured differently. This seems to be at a high level the issue with facebook.com. if you go to "facebook.com" the DNS will resolve correctly, but it will redirect you to www.facebook.com. I guess they could stop the redirection and fix the problem immediately, or wait till the sorry.ak.facebook.com.edgesuite.net is fixed.
=====www.facebook.com
new-host-3:dpu2 robertbuffone$ dig -trace www.facebook.com
;; Warning, ignoring invalid type race
; <<>> DiG 9.6.0-APPLE-P2 <<>> -trace www.facebook.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19626
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.facebook.com. IN A
;; ANSWER SECTION:
www.facebook.com. 0 IN CNAME sorry.ak.facebook.com.edgesuite.net.
sorry.ak.facebook.com.edgesuite.net. 0 IN CNAME a1030.g.akamai.net.
a1030.g.akamai.net. 4 IN A 63.84.59.59
a1030.g.akamai.net. 4 IN A 63.84.59.10
;; Query time: 10 msec
;; SERVER: 198.6.1.142#53(198.6.1.142)
;; WHEN: Thu Sep 23 16:57:29 2010
;; MSG SIZE rcvd: 144
========facebook.com
new-host-3:dpu2 robertbuffone$ dig -trace facebook.com
;; Warning, ignoring invalid type race
; <<>> DiG 9.6.0-APPLE-P2 <<>> -trace facebook.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19984
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;facebook.com. IN A
;; ANSWER SECTION:
facebook.com. 352 IN A 69.63.181.12
facebook.com. 352 IN A 69.63.189.16
facebook.com. 352 IN A 69.63.189.11
;; Query time: 13 msec
;; SERVER: 198.6.1.142#53(198.6.1.142)
;; WHEN: Thu Sep 23 16:57:44 2010
;; MSG SIZE rcvd: 78