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 toronto.craigslist.ca:
HTTP/1.1 200 OK
Cache-Control: max-age=3600, public
Last-Modified: Wed, 28 Feb 2018 05:49:46 GMT
Set-Cookie: cl_def_hp=toronto; path=/; domain=.craigslist.ca; expires=Thu, 28-Feb-2019 05:49:46 GMT
Date: Wed, 28 Feb 2018 05:49:46 GMT
Content-Encoding: gzip
Vary: Accept-Encoding
Content-Length: 11349
Content-Type: text/html; charset=UTF-8
X-Frame-Options: SAMEORIGIN
Server: Apache
Expires: Wed, 28 Feb 2018 06:49:46 GMT
Strict-Transport-Security: max-age=86400
toronto.craigslist.ca - 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 8 DNS record(s) of craigslist.ca.