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 nielsen.com:
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sun, 24 Nov 2019 03:33:23 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 0
Connection: keep-alive
Location: https://www.nielsen.com/
X-rq: ewr1 96 209 3087
Cache-Control: max-age=300, must-revalidate
Age: 1501
X-Cache: hit
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sun, 24 Nov 2019 03:33:23 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 0
Connection: keep-alive
X-hacker: If you're reading this, you should visit wpvip.com/careers and apply to join the fun, mention this header.
X-Powered-By: WordPress.com VIP <https://wpvip.com>
X-Redirect-By: WordPress
Location: https://www.nielsen.com/us/en/
X-rq: ewr1 102 61 3212
Cache-Control: max-age=300, must-revalidate
Age: 1743
X-Cache: hit
Vary: X-Country-Code
HTTP/1.1 200 OK
Server: nginx
Date: Sun, 24 Nov 2019 03:33:23 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 14537
Connection: keep-alive
X-hacker: If you're reading this, you should visit wpvip.com/careers and apply to join the fun, mention this header.
X-Powered-By: WordPress.com VIP <https://wpvip.com>
Link: <https://www.nielsen.com/wp-json/>; rel="https://api.w.org/"
Content-Encoding: gzip
X-rq: ewr1 102 216 3155
Cache-Control: max-age=300, must-revalidate
Age: 1083
X-Cache: hit
Vary: Accept-Encoding
Accept-Ranges: bytes
nielsen.com - 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 13 DNS record(s) of nielsen.com.