$ ./whatweb reddit.com
http://reddit.com [301 Moved Permanently] Country[UNITED STATES][US], HTTPServer[snooserv], IP[151.101.65.140], RedirectLocation[https://www.reddit.com/], UncommonHeaders[retry-after,x-served-by,x-cache-hits,x-timer], Via-Proxy[1.1 varnish]
https://www.reddit.com/ [200 OK] Cookies[edgebucket,eu_cookie_v2,loid,rabt,rseor3,session_tracker,token], Country[UNITED STATES][US], Email[[email protected],[email protected]], Frame, HTML5, HTTPServer[snooserv], HttpOnly[token], IP[151.101.37.140], Open-Graph-Protocol[website], Script[text/javascript], Strict-Transport-Security[max-age=15552000; includeSubDomains; preload], Title[reddit: the front page of the internet], UncommonHeaders[fastly-restarts,x-served-by,x-cache-hits,x-timer], Via-Proxy[1.1 varnish], X-Frame-Options[SAMEORIGIN]

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WhatWeb - Next generation web scanner version 0.5.5.
Developed by Andrew Horton (urbanadventurer) and Brendan Coles (bcoles)
Homepage: https://morningstarsecurity.com/research/whatweb

Usage: whatweb [options] <URLs>

TARGET SELECTION:
  <TARGETs>             Enter URLs, hostnames, IP addresses, filenames or
                        IP ranges in CIDR, x.x.x-x, or x.x.x.x-x.x.x.x
                        format.
  --input-file=FILE, -i Read targets from a file. You can pipe
                        hostnames or URLs directly with -i /dev/stdin.

TARGET MODIFICATION:
  --url-prefix          Add a prefix to target URLs.
  --url-suffix          Add a suffix to target URLs.
  --url-pattern         Insert the targets into a URL. Requires --input-file,
                        eg. www.example.com/%insert%/robots.txt 

AGGRESSION:
  The aggression level controls the trade-off between speed/stealth and
  reliability.
  --aggression, -a=LEVEL Set the aggression level. Default: 1.
  Aggression levels are:
  1. Stealthy   Makes one HTTP request per target. Also follows redirects.
  3. Aggressive If a level 1 plugin is matched, additional requests will be
      made.
  4. Heavy      Makes a lot of HTTP requests per target. Aggressive tests from
      all plugins are used for all URLs.

HTTP OPTIONS:
  --user-agent, -U=AGENT Identify as AGENT instead of WhatWeb/0.5.5.
  --header, -H          Add an HTTP header. eg "Foo:Bar". Specifying a default
                        header will replace it. Specifying an empty value, eg.
                        "User-Agent:" will remove the header.
  --follow-redirect=WHEN Control when to follow redirects. WHEN may be `never',
                        `http-only', `meta-only', `same-site', or `always'.
                        Default: always.
  --max-redirects=NUM   Maximum number of contiguous redirects. Default: 10.

AUTHENTICATION:
  --user, -u=<user:password> HTTP basic authentication.
  --cookie, -c=COOKIES  Provide cookies, e.g. 'name=value; name2=value2'.
  --cookiejar=FILE      Read cookies from a file.

PROXY:
  --proxy           <hostname[:port]> Set proxy hostname and port.
                    Default: 8080.
  --proxy-user      <username:password> Set proxy user and password.

PLUGINS:
  --list-plugins, -l            List all plugins.
  --info-plugins, -I=[SEARCH]   List all plugins with detailed information.
                                Optionally search with keywords in a comma
                                delimited list.
  --search-plugins=STRING       Search plugins for a keyword.
  --plugins, -p=LIST  Select plugins. LIST is a comma delimited set of 
                      selected plugins. Default is all.
                      Each element can be a directory, file or plugin name and
                      can optionally have a modifier, eg. + or -
                      Examples: +/tmp/moo.rb,+/tmp/foo.rb
                      title,md5,+./plugins-disabled/
                      ./plugins-disabled,-md5
                      -p + is a shortcut for -p +plugins-disabled.

  --grep, -g=STRING|REGEXP      Search for STRING or a Regular Expression. Shows 
                                only the results that match.
                                Examples: --grep "hello"
                                --grep "/he[l]*o/"
  --custom-plugin=DEFINITION\tDefine a custom plugin named Custom-Plugin,
  --custom-plugin=DEFINITION  Define a custom plugin named Custom-Plugin,
                        Examples: ":text=>'powered by abc'"
                        ":version=>/powered[ ]?by ab[0-9]/"
                        ":ghdb=>'intitle:abc \"powered by abc\"'"
                        ":md5=>'8666257030b94d3bdb46e05945f60b42'"
  --dorks=PLUGIN        List Google dorks for the selected plugin.

OUTPUT:
  --verbose, -v         Verbose output includes plugin descriptions. Use twice
                        for debugging.
  --colour,--color=WHEN control whether colour is used. WHEN may be `never',
                        `always', or `auto'.
  --quiet, -q           Do not display brief logging to STDOUT.
  --no-errors           Suppress error messages.

LOGGING:
  --log-brief=FILE        Log brief, one-line output.
  --log-verbose=FILE      Log verbose output.
  --log-errors=FILE       Log errors.
  --log-xml=FILE          Log XML format.
  --log-json=FILE         Log JSON format.
  --log-sql=FILE          Log SQL INSERT statements.
  --log-sql-create=FILE   Create SQL database tables.
  --log-json-verbose=FILE Log JSON Verbose format.
  --log-magictree=FILE    Log MagicTree XML format.
  --log-object=FILE       Log Ruby object inspection format.
  --log-mongo-database    Name of the MongoDB database.
  --log-mongo-collection  Name of the MongoDB collection. Default: whatweb.
  --log-mongo-host        MongoDB hostname or IP address. Default: 0.0.0.0.
  --log-mongo-username    MongoDB username. Default: nil.
  --log-mongo-password    MongoDB password. Default: nil.  
  --log-elastic-index     Name of the index to store results. Default: whatweb 
  --log-elastic-host      Host:port of the elastic http interface. Default: 127.0.0.1:9200
  
PERFORMANCE & STABILITY:
  --max-threads, -t       Number of simultaneous threads. Default: 25.
  --open-timeout          Time in seconds. Default: 15.
  --read-timeout          Time in seconds. Default: 30.
  --wait=SECONDS          Wait SECONDS between connections.
                          This is useful when using a single thread.

HELP & MISCELLANEOUS:
  --short-help            Short usage help.
  --help, -h              Complete usage help.
  --debug                 Raise errors in plugins.
  --version               Display version information. (WhatWeb 0.5.5).

EXAMPLE USAGE:
* Scan example.com.
  ./whatweb example.com
* Scan reddit.com slashdot.org with verbose plugin descriptions.
  ./whatweb -v reddit.com slashdot.org
* An aggressive scan of wired.com detects the exact version of WordPress.
  ./whatweb -a 3 www.wired.com
* Scan the local network quickly and suppress errors.
  whatweb --no-errors 192.168.0.0/24
* Scan the local network for https websites.
  whatweb --no-errors --url-prefix https:// 192.168.0.0/24
* Scan for crossdomain policies in the Alexa Top 1000.
  ./whatweb -i plugin-development/alexa-top-100.txt \
  --url-suffix /crossdomain.xml -p crossdomain_xml

$ ./whatweb -l

Plugin Name - Description
--------------------------------------------------------------------------------
1024-CMS - 1024 is one of a few CMS's leading the way with the implementation...
360-Web-Manager - 360-Web-Manager
3COM-NBX - 3COM NBX phone system. The NBX NetSet utility is a web interface i...
3dcart - 3dcart - The 3dcart Shopping Cart Software is a complete ecommerce s...
4D - 4D web application deployment server
4images - 4images is a powerful web-based image gallery management system. Fe...
... (truncated)

$ ./whatweb -I phpBB

WhatWeb Detailed Plugin List
Searching for phpBB
================================================================================
Plugin:         phpBB
--------------------------------------------------------------------------------
Description:    phpBB is a free forum 
Website:        http://phpbb.org/

Author:         Andrew Horton
Version:        0.3

Features:       [Yes]  Pattern Matching (7)
                [Yes]  Version detection from pattern matching
                [Yes]  Function for passive matches
                [Yes]  Function for aggressive matches
                [Yes]  Google Dorks (1)

Google Dorks:
[1] "Powered by phpBB"
================================================================================

--aggression, -a

  1. Stealthy Makes one HTTP request per target. Also follows redirects.
    2. Unused
    3. Aggressive Can make a handful of HTTP requests per target. This triggers
        aggressive plugins for targets only when those plugins are
        identified with a level 1 request first.
  4. Heavy  Makes a lot of HTTP requests per target. Aggressive tests from
        all plugins are used for all URLs.

$ ./whatweb smartor.is-root.com/forum/
http://smartor.is-root.com/forum/ [200] PasswordField[password], HTTPServer[Apache/2.2.15], PoweredBy[phpBB], Apache[2.2.15], IP[88.198.177.36], phpBB[2], PHP[5.2.13], X-Powered-By[PHP/5.2.13], Cookies[phpbb2mysql_data,phpbb2mysql_sid], Title[Smartors Mods Forums - Reloaded], Country[GERMANY][DE]

$ ./whatweb -p plugins/phpbb.rb -a 3 smartor.is-root.com/forum/
http://smartor.is-root.com/forum/ [200] phpBB[2,>2.0.20]