HTTP header fields are components of the message header of requests and responses in the Hypertext Transfer Protocol (HTTP). They define the operating parameters of an HTTP transaction. The header fields are not directly displayed by normal web browsers like Internet Explorer, Google Chrome, Firefox etc. Below is the HTTP Header information of iask.sina.com.cn:
HTTP/1.0 301 Moved Permanently
Server: Cdn Cache Server V2.0
Date: Thu, 22 Feb 2018 05:56:36 GMT
Content-Length: 0
Location: https://iask.sina.com.cn/
HTTP/1.1 200 OK
Date: Thu, 22 Feb 2018 05:56:39 GMT
Server: nginx
Content-Type: text/html;charset=UTF-8
Content-Length: 191886
P3P: CP=CAO PSA OUR
Last-Modified: Thu, 22 Feb 2018 05:50:32 GMT
Content-Language: en-US
Content-Encoding: gzip
Accept-Ranges: bytes
cdnhost: 103
X-Via: 1.1 fzh55:2 (Cdn Cache Server V2.0), 1.1 niuyue220:5 (Cdn Cache Server V2.0)
Connection: close
iask.sina.com.cn - DNS Record Analysis
Domain Name Systes (DNS) translates easily memorized domain names to the numerical IP addresses needed for the purpose of locating computer services and devices worldwide. There are total 10 DNS record(s) of sina.com.cn.