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 stm.sciencemag.org:
HTTP/1.1 200 OK
Date: Tue, 27 Feb 2018 15:55:13 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=d18eaee0a8bc10e893a066401a0fc77e61519746913; expires=Wed, 27-Feb-19 15:55:13 GMT; path=/; domain=.sciencemag.org; HttpOnly
Age: 0
Cache-Control: public, max-age=900, must-revalidate, proxy-revalidate, pre-check=0, post-check=0
Cf-Railgun: direct (starting new WAN connection)
Content-Language: en
Etag: W/"1519746142-1"
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Tue, 27 Feb 2018 15:42:22 GMT
Pragma: no-cache
Vary: Cookie,Accept-Encoding
Via: 1.1 varnish
X-Content-Type-Options: nosniff
X-Drupal-Cache: HIT
X-Frame-Options: SAMEORIGIN
X-Generator: Drupal 7 (http://drupal.org)
X-Highwire-Sitecode: scitransmed
X-Highwire-Smart-Code: scitransmed_production
X-Varnish: 1934891787
X-Varnish-Cache:
X-Varnish-Ttl:
Server: cloudflare
CF-RAY: 3f3c53c292c34722-EWR
Content-Encoding: gzip
stm.sciencemag.org - 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 6 DNS record(s) of sciencemag.org.