www.firefox.com.cn还是火狐中国官方网站么？

> curl www.firefox.com -H "Accept-Language: zh-CN,zh;q=0.5" -L -I
HTTP/1.1 301 Moved Permanently
Server: Apache
X-Backend-Server: pp-web04
Vary: Accept-Encoding
Cache-Control: max-age=0
Content-Type: text/html; charset=iso-8859-1
Date: Sun, 19 Jul 2015 04:29:57 GMT
Location: https://www.mozilla.org/firefox/?utm_source=firefox-com&utm_medium=referral
Expires: Sun, 19 Jul 2015 04:29:57 GMT
Transfer-Encoding: chunked
Connection: Keep-Alive
X-Cache-Info: not cacheable; response specified max-age <= 0

HTTP/1.1 301 MOVED PERMANENTLY
Server: Apache
Vary: Accept-Language, Accept-Encoding
X-Backend-Server: bedrock1.webapp.scl3.mozilla.com
Cache-Control: max-age=600
Content-Type: text/html; charset=utf-8
Date: Sun, 19 Jul 2015 04:29:59 GMT
Location: https://www.mozilla.org/zh-CN/firefox/?utm_source=firefox-com&utm_medium=referral
Expires: Sun, 19 Jul 2015 04:39:59 GMT
Transfer-Encoding: chunked
Connection: Keep-Alive
X-Robots-Tag: noodp
X-Frame-Options: DENY
X-Cache-Info: caching

HTTP/1.1 301 MOVED PERMANENTLY
Server: Apache
X-Backend-Server: bedrock3.webapp.scl3.mozilla.com
Vary: Accept-Encoding
Cache-Control: max-age=600
Content-Type: text/html; charset=utf-8
Date: Sun, 19 Jul 2015 04:29:59 GMT
Location: https://www.mozilla.org/zh-CN/firefox/new/?utm_source=firefox-com&utm_medium=referral ← 最终跳转目标
Expires: Sun, 19 Jul 2015 04:39:59 GMT
Transfer-Encoding: chunked
Connection: Keep-Alive
X-Robots-Tag: noodp
X-Frame-Options: DENY
X-Cache-Info: caching

HTTP/1.1 200 OK
Server: Apache
X-Backend-Server: bedrock2.webapp.scl3.mozilla.com
Vary: Accept-Encoding
Cache-Control: max-age=600
Content-Type: text/html; charset=utf-8
Date: Sun, 19 Jul 2015 04:30:00 GMT
Expires: Sun, 19 Jul 2015 04:40:00 GMT
Transfer-Encoding: chunked
Connection: Keep-Alive
X-Robots-Tag: noodp
X-Cache-Info: caching
X-Clacks-Overhead: GNU Terry Pratchett

> curl www.mozilla.org -H "Accept-Language: zh-CN,zh;q=0.5" -L -I
HTTP/1.1 301 Moved Permanently
Content-Type: text/html
Date: Sun, 19 Jul 2015 04:31:04 GMT
Location: https://www.mozilla.org/
Connection: Keep-Alive
Content-Length: 0

HTTP/1.1 301 Moved Permanently
Server: Apache
X-Backend-Server: bedrock5.webapp.scl3.mozilla.com
Vary: User-Agent,Accept-Language, Accept-Encoding
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0, private, max-age=900
Content-Type: text/html; charset=UTF-8
Date: Sun, 19 Jul 2015 04:31:06 GMT
Location: https://www.mozilla.org/zh-CN/
Expires: Sun, 19 Jul 2015 04:46:06 GMT
Pragma: no-cache
Transfer-Encoding: chunked
Connection: Keep-Alive
X-Robots-Tag: noodp
X-Cache-Info: not cacheable; response specified "Cache-Control: no-store"

HTTP/1.1 301 Moved Permanently
Server: Apache
X-Backend-Server: bedrock1.webapp.scl3.mozilla.com
Vary: Accept-Encoding
Content-Type: text/html; charset=iso-8859-1
Date: Sun, 19 Jul 2015 04:28:21 GMT
Location: http://firefox.com.cn/
Transfer-Encoding: chunked
Connection: Keep-Alive
X-Cache-Info: cached

HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sun, 19 Jul 2015 04:31:07 GMT
Content-Type: text/html
Content-Length: 178
Connection: keep-alive
Location: http://www.firefox.com.cn/ ← 最终跳转目标

HTTP/1.1 200 OK
Server: nginx
Date: Sun, 19 Jul 2015 04:31:07 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 0
Connection: keep-alive
Vary: Accept-Encoding
Vary: Cookie, Accept-Language
X-Frame-Options: DENY
Expires: Sun, 19 Jul 2015 04:37:46 GMT
Cache-Control: max-age=600
Age: 201
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