get-headers

Simple tool to show the headers from GET-ing a URL

The problem this solves is that when you use curl -I it does a HEAD request, potentially changing the result, and when you do curl -i it also dumps the page HTML on you. This does a GET and returns those results—including any doubled headers. It also (optionally) downloads the body of the page and returns speed and timing information.

Installation

First install Go.

If you just want to install the binary to your current directory and don't care about the source code, run

GOBIN=$(pwd) go install github.com/carlmjohnson/get-headers@latest

Screenshots

$ get-headers https://www.example.com
GET https://www.example.com
HTTP/1.1 200 OK

Cache-Control      max-age=604800
Content-Type       text/html
Date               Fri, 15 Jan 2016 13:40:38 GMT
Etag               "359670651+gzip"
Expires            Fri, 22 Jan 2016 13:40:38 GMT
Last-Modified      Fri, 09 Aug 2013 23:54:35 GMT
Server             ECS (iad/18CB)
Vary               Accept-Encoding
X-Cache            HIT
X-Ec-Custom-Error  1

Time            100ms 204µs
Content length  1.2 KB
Speed           12.4 KB/s

$ get-headers -gzip http://www.example.com
GET http://www.example.com
HTTP/1.1 200 OK

Cache-Control      max-age=604800
Content-Encoding   gzip
Content-Length     606
Content-Type       text/html
Date               Fri, 15 Jan 2016 13:43:28 GMT
Etag               "359670651+gzip"
Expires            Fri, 22 Jan 2016 13:43:28 GMT
Last-Modified      Fri, 09 Aug 2013 23:54:35 GMT
Server             ECS (iad/182A)
Vary               Accept-Encoding
X-Cache            HIT
X-Ec-Custom-Error  1

Time            9ms 709µs
Content length  606
Speed           60.9 KB/s

$ get-headers -h
Usage of get-headers v0.21.1:

get-headers [opts] <url>...
        Gets the URLs and prints their headers alphabetically.
        Repeated headers are printed with an asterisk.

Options may be set as GET_HEADERS prefixed environment variables.

  -cookie string
        Set cookie header
  -etag value
        Set 'If-None-Match' header to etag value
  -g    Shortcut for -gzip
  -gzip
        Enable GZIP compression
  -i    Shortcut for -ignore-body
  -ignore-body
        Ignore body of request; close connection after gettings the headers