diff --git a/lib/webgalien.rb b/lib/webgalien.rb
index 6d4e705..b6d618b 100644
--- a/lib/webgalien.rb
+++ b/lib/webgalien.rb
@@ -2,6 +2,7 @@
 # Load external dependencies
 require 'thor'
 require 'celluloid/current'
+require 'mechanize'
 require 'selenium-webdriver'
 require 'yaml'
 require 'thor'
@@ -15,6 +16,7 @@ require 'webgalien/actors/work_actor'
 
 require 'webgalien/screenshot'
 require 'webgalien/sitemap'
+require 'webgalien/devices'
 
 # Load cli
 require 'webgalien/cli'
diff --git a/lib/webgalien/actors/crop_png_actor.rb b/lib/webgalien/actors/crop_png_actor.rb
index d8ada18..f7a0480 100644
--- a/lib/webgalien/actors/crop_png_actor.rb
+++ b/lib/webgalien/actors/crop_png_actor.rb
@@ -4,13 +4,17 @@ module Webgalien
 class CropPngActor
   include Celluloid
 
+    def initialize(output_path)
+      @output_path = output_path
+    end
+
   def perform(work_future)
     work = work_future.value
     work.shift!
 
     input_path = work.input[:path] 
     bbox = work.input[:bbox]
-    output_path = File.join(TMP_PREFIX, 'crop-' + work.id + '.png')
+    output_path = File.join(@output_path, 'crop-' + work.id + '.png')
 
     puts "(#{work.id}) cropping capture".green
     system 'convert ' \
diff --git a/lib/webgalien/actors/screenshot_actor.rb b/lib/webgalien/actors/screenshot_actor.rb
index 3462b92..9a6662d 100644
--- a/lib/webgalien/actors/screenshot_actor.rb
+++ b/lib/webgalien/actors/screenshot_actor.rb
@@ -8,6 +8,10 @@ module Webgalien
   class ScreenshotActor
     include Celluloid
 
+    def initialize(output_path)
+      @output_path = output_path
+    end
+
     def perform(future_work)
       driver = initialize_selenium_driver
 
@@ -15,16 +19,24 @@ module Webgalien
       work.shift!
 
       url = work.input[:url]
-      # Start selenium work
-      # platform_login driver
+      
       # Go to wanted page
-      driver.manage.window.resize_to(1440, 8000)
+      driver.manage.window.resize_to(1440, 900)
       puts "(#{work.id}) loading page #{url}"
       driver.navigate.to url
 
       puts "(#{work.id}) waiting DOM stability"
       wait_dom_stability(driver)
 
+      # get page size
+      element = driver.find_element(:css, "body")
+      height = element.size.height.to_i + 1
+      puts "(#{work.id}) resizing to 1440x#{height}"
+      driver.manage.window.resize_to(1440, height)
+
+      puts "(#{work.id}) waiting DOM stability"
+      wait_dom_stability(driver)
+
       puts "(#{work.id}) getting page dimensions"
       element = driver.find_element(:css, "body")
       location = element.location
@@ -37,9 +49,9 @@ module Webgalien
         y: 0 # location.y.to_i
       }
 
-      puts "(#{work.id}) saving page"
-      FileUtils.mkdir_p(TMP_PREFIX)
-      tmp_path = File.join(TMP_PREFIX, 'capture-' + work.id.to_s + '.png')
+      tmp_path = File.join(@output_path, 'capture-' + work.id.to_s + '.png')
+      puts "(#{work.id}) saving page to #{tmp_path}"
+      FileUtils.mkdir_p(@output_path)
       driver.save_screenshot tmp_path
 
       driver.quit
@@ -54,12 +66,22 @@ module Webgalien
     private
 
     def initialize_selenium_driver
+      client = Selenium::WebDriver::Remote::Http::Default.new
+      client.read_timeout = 120
+      client.open_timeout = 120
+
       options = Selenium::WebDriver::Chrome::Options.new
       options.add_argument('--headless')
       options.add_argument('--disable-gpu')
+      options.add_argument('--dns-prefetch-disable')
       options.add_argument("--user-agent=#{USER_AGENT}")
 
-      Selenium::WebDriver.for :chrome, options: options
+      # driver.timeout = 90 # instead of the default 60
+      Selenium::WebDriver.for(
+        :chrome, 
+        options: options,
+        http_client: client
+      )
     end
 
     # wait for DOM structure to be stabilizer for 5 consecutive tries
diff --git a/lib/webgalien/cli.rb b/lib/webgalien/cli.rb
index e72bc09..49d6a1c 100644
--- a/lib/webgalien/cli.rb
+++ b/lib/webgalien/cli.rb
@@ -1,4 +1,6 @@
 
+require 'table_print'
+
 module Webgalien 
   class Cli < Thor 
     class_option :'user-agent',
@@ -6,32 +8,57 @@ module Webgalien
       banner: 'USER-AGENT',
       type: :string,
       desc: 'choose user agent (default Mozilla)'
+    option :output,
+      aliases: '-o',
+      banner: 'OUTPUT-FILE',
+      type: :string,
+      default: 'sitemap.yml',
+      desc: 'where sitemap will be produced (default: sitemap.yml)'
 
     desc 'sitemap URL FILE', 'crawl site and export sitemap'
-    def sitemap url, file 
+    def sitemap url
+      Sitemap.start(
+        url: url,
+        output: options['output']
+      )
     end
 
     desc 'screenshot FILE', 'take screenshots for each page'
+    option :device, 
+      aliases: '-d',  
+      banner: 'DEVICE',
+      type: :string,
+      desc: 'set device from "list-devices" (default "desktop")'
     option :profile, 
-      aliases: '-p',  
-      banner: 'PROFILE',
+      aliases: '-r',  
+      banner: '[portrait|landscape]',
       type: :string,
-      desc: 'choose device profile / resolution (default 1440x900 on desktop pc)'
-    option :output,
+      desc: 'choose device orientation (default "portrait")'
+    option :"output-path",
       aliases: '-o',
-      banner: 'OUTPUT-DIRECTORY',
+      banner: 'OUTPUT-PATH',
       type: :string,
-      default: '.',
-      desc: 'where resulting content will be produced'
-
-    def screenshot file
-      config = YAML.load File.open(file)
-      prefixed_urls = config['pages'].map {|u| config['root'] + u }
+      default: 'cache',
+      desc: 'directory where resulting content will be produced'
 
+    def screenshot sitemap
+      if not Devices.exist?(options['device']) then
+        STDERR.puts "ERROR: device #{options['device']} does not exist"
+        exit 1
+      end
       Screenshot.start(
-        urls: prefixed_urls,
-        output_path: options['output']
+        sitemap: sitemap, 
+        output_path: options['output-path'],
+        device: options['device'],
+        orientation: options['orientation']
       )
     end
+
+
+    desc 'list-devices', 'list available profiles'
+    def list_devices
+      # from https://mediag.com/news/popular-screen-resolutions-designing-for-all/
+      Devices.display_list
+    end
   end
 end
diff --git a/lib/webgalien/devices.rb b/lib/webgalien/devices.rb
new file mode 100644
index 0000000..e488ba9
--- /dev/null
+++ b/lib/webgalien/devices.rb
@@ -0,0 +1,56 @@
+require 'csv'
+
+module Webgalien 
+  class Devices
+    PROFILES_CSV = <<-MARK
+      laptop, 1440, 900, computer, "x"
+      desktop, 1280, 768, computer, "x"
+
+      apple-iphone-x, 375, 812, phone, "Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1"
+      apple-iphone-8plus, 414, 736, phone, "Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1"
+      apple-iphone-8, 375, 667, phone, "Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1"
+      apple-iphone-7plus, 414, 736, phone
+      apple-iphone-7, 375, 667, phone
+      apple-iphone-6plus, 414, 736, phone
+      apple-iphone-6, 375, 667, phone
+      apple-iphone-5, 320, 568, phone
+      apple-ipad-pro, 1024, 1366, tablet
+      apple-ipad, 768, 1024, tablet
+      apple-air, 768, 1024, tablet
+      apple-air-2, 768, 1024, tablet
+      apple-mini, 768, 1024, tablet
+      apple-mini-2, 768, 1024, tablet
+      apple-mini-3, 768, 1024, tablet
+
+      samsung-galaxy-s9, 360, 740, phone
+      samsung-galaxy-s8plus, 360, 740, phone
+      samsung-galaxy-s8, 360, 740, phone
+      samsung-galaxy-s7, 360, 640, phone
+      nexus-6p, 411, 731, phone
+    MARK
+    .freeze
+
+    PROFILES = CSV.parse(PROFILES_CSV, skip_blanks: true, quote_char: '"', liberal_parsing: true )
+     .map do |model, width, height, type, agent| 
+       {
+         model: model&.strip,
+         width: width&.strip, 
+         height: height&.strip, 
+         type: type&.strip,
+         agent: agent&.strip
+       }
+     end.freeze
+
+    def self.display_list 
+      tp PROFILES
+    end
+
+    def self.exist? profile
+      require 'pp'
+      pp PROFILES
+      exit 1
+      return PROFILES.map {|x| x.models }.exist? profile
+    end
+  end
+end
+
diff --git a/lib/webgalien/screenshot.rb b/lib/webgalien/screenshot.rb
index d58b6c4..914938b 100644
--- a/lib/webgalien/screenshot.rb
+++ b/lib/webgalien/screenshot.rb
@@ -1,16 +1,19 @@
 
 module Webgalien 
   class Screenshot 
-    def self.start(urls:, output_path:)
+    def self.start(sitemap:, output_path: , device:, orientation:)
+      config = YAML.load File.open(sitemap)
+      urls = config['pages']
+
       # Start workpools
       cores = Celluloid.cores
       screenshot_pool = ScreenshotActor.pool(
         size: cores, 
-        args: { output_path: output_path }
+        args: [ output_path ]
       )
       crop_pool = CropPngActor.pool(
         size: cores, 
-        args: { output_path: output_path }
+        args: [ output_path ]
       )
 
       futures = 
diff --git a/lib/webgalien/sitemap.rb b/lib/webgalien/sitemap.rb
index 4dd5a8b..014c59b 100644
--- a/lib/webgalien/sitemap.rb
+++ b/lib/webgalien/sitemap.rb
@@ -1,7 +1,56 @@
 
 module Webgalien 
   class Sitemap 
-    def self.start(output_path:)
+    def self.start(url:, output:)
+      puts "Loading #{url}"
+
+      visited = Set.new
+      remains = Set.new
+      remains << url
+      root = url
+
+      while remains.size > 0
+        current = remains.to_a[0]
+        remains.delete(current)
+
+        current2, links = Sitemap.get_links(root, current)
+        visited << current2
+
+        remains = 
+          remains + links.to_set - visited - visited.map{|x| x.gsub(/\/$/,'') }
+      end
+
+      result = { 
+        "root" => root,
+        "pages" => visited.to_a
+      }
+      File.write(output, result.to_yaml)
+    end
+
+
+    def self.get_links(root, url) 
+      links = []
+      mechanize = Mechanize.new
+      page = mechanize.get(url)
+      url2 = page.uri.to_s 
+      
+      page.links.each do |link|
+        next if ! link.href =~ /^https?:\/\//
+        begin 
+          link_url = mechanize.resolve(link.href).to_s
+          print "Found #{url} -> #{link_url} "
+          if link_url.start_with?(root) then
+            puts "(ok)".green
+            links << link_url
+          else 
+            puts "(out of scope)".red
+          end
+        rescue Mechanize::UnsupportedSchemeError
+          print "Found #{url} -> #{link.href} "
+          puts "(unsupported scheme)".red
+        end
+      end
+      return url2, links
     end
   end
 end