diff --git a/Casks/adium-beta.rb b/Casks/adium-beta.rb
index 88d1ae782..8352924bb 100644
--- a/Casks/adium-beta.rb
+++ b/Casks/adium-beta.rb
@@ -2,6 +2,7 @@ cask 'adium-beta' do
   version '1.5.11b3'
   sha256 '999e1931a52dc327b3a6e8492ffa9df724a837c88ad9637a501be2e3b6710078'
 
+  # adiumx.cachefly.net was verified as official when first introduced to the cask
   url "https://adiumx.cachefly.net/Adium_#{version}.dmg"
   name 'Adium'
   homepage 'https://beta.adium.im/'
diff --git a/Casks/dropbox-beta.rb b/Casks/dropbox-beta.rb
index e140d578c..1f9e6c42e 100644
--- a/Casks/dropbox-beta.rb
+++ b/Casks/dropbox-beta.rb
@@ -2,6 +2,7 @@ cask 'dropbox-beta' do
   version '7.3.29'
   sha256 'b895827a9c0bce54a169048ae845a0602262c4fdff54b0c6cece8980ee579f44'
 
+  # dropboxstatic.com was verified as official when first introduced to the cask
   url "https://clientupdates.dropboxstatic.com/client/Dropbox%20#{version}.dmg"
   name 'Dropbox'
   homepage 'https://www.dropboxforum.com/hc/en-us/community/posts/206689743-Beta-Build-7-3-29'
diff --git a/Casks/firefox-esr-ru.rb b/Casks/firefox-esr-ru.rb
index e632737ea..ff87a7b6e 100644
--- a/Casks/firefox-esr-ru.rb
+++ b/Casks/firefox-esr-ru.rb
@@ -2,6 +2,7 @@ cask 'firefox-esr-ru' do
   version '45.2.0'
   sha256 '724e55be9c0211f5de63b8a7be3c580792ecb208038ce0835f0338e0e0bb0b5d'
 
+  # mozilla.net was verified as official when first introduced to the cask
   url "https://download-installer.cdn.mozilla.net/pub/firefox/releases/#{version}esr/mac/ru/Firefox%20#{version}esr.dmg"
   name 'Mozilla Firefox'
   homepage 'https://www.mozilla.org/ru/firefox/organizations/'
diff --git a/Casks/firefox-esr-uk.rb b/Casks/firefox-esr-uk.rb
index 512d6be08..990fb6add 100644
--- a/Casks/firefox-esr-uk.rb
+++ b/Casks/firefox-esr-uk.rb
@@ -2,6 +2,7 @@ cask 'firefox-esr-uk' do
   version '45.2.0'
   sha256 '94e8d474688c5d1e084dab88e50b5568cdc675ada401adb0bd8d472c1b1bf0da'
 
+  # mozilla.net was verified as official when first introduced to the cask
   url "https://download-installer.cdn.mozilla.net/pub/firefox/releases/#{version}esr/mac/uk/Firefox%20#{version}esr.dmg"
   name 'Mozilla Firefox'
   homepage 'https://www.mozilla.org/uk/firefox/organizations/'
diff --git a/Casks/firefox-esr-zh-cn.rb b/Casks/firefox-esr-zh-cn.rb
index 7c83b0375..745f0e287 100644
--- a/Casks/firefox-esr-zh-cn.rb
+++ b/Casks/firefox-esr-zh-cn.rb
@@ -2,6 +2,7 @@ cask 'firefox-esr-zh-cn' do
   version '45.2.0'
   sha256 '5b9aa224c4bfa3bf960b62a0a1bba72d81b46cc95f1c09454549adaa4681a02f'
 
+  # mozilla.net was verified as official when first introduced to the cask
   url "https://download-installer.cdn.mozilla.net/pub/firefox/releases/#{version}esr/mac/zh-CN/Firefox%20#{version}esr.dmg"
   name 'Mozilla Firefox'
   homepage 'https://www.mozilla.org/zh-CN/firefox/organizations/'
diff --git a/Casks/firefox-esr.rb b/Casks/firefox-esr.rb
index a5e63e593..d73fbfc81 100644
--- a/Casks/firefox-esr.rb
+++ b/Casks/firefox-esr.rb
@@ -2,6 +2,7 @@ cask 'firefox-esr' do
   version '45.2.0'
   sha256 '789e708ca817ceccfd9075826f16b95023752be0a868abe491c3dc7875e7926c'
 
+  # mozilla.net was verified as official when first introduced to the cask
   url "https://download-installer.cdn.mozilla.net/pub/firefox/releases/#{version}esr/mac/en-US/Firefox%20#{version}esr.dmg"
   name 'Mozilla Firefox'
   homepage 'https://www.mozilla.org/en-US/firefox/organizations/'
diff --git a/Casks/firefox-zh-tw.rb b/Casks/firefox-zh-tw.rb
index e6d5f8222..30ec3282d 100644
--- a/Casks/firefox-zh-tw.rb
+++ b/Casks/firefox-zh-tw.rb
@@ -2,6 +2,7 @@ cask 'firefox-zh-tw' do
   version '47.0.1'
   sha256 '5d94c0829147b9ceeb4f01f2a23b0baf272e2bb5ece7fbfa6c3c408b6ddf2366'
 
+  # mozilla.org was verified as official when first introduced to the cask
   url "https://download.mozilla.org/?product=firefox-#{version}-SSL&os=osx&lang=zh-TW"
   name 'Mozilla Firefox'
   homepage 'https://mozilla.com.tw/firefox/new/'
diff --git a/Casks/julia-nightly.rb b/Casks/julia-nightly.rb
index 69a268c81..45fbd13e4 100644
--- a/Casks/julia-nightly.rb
+++ b/Casks/julia-nightly.rb
@@ -2,7 +2,7 @@ cask 'julia-nightly' do
   version '0.5.0-fa5af23773'
   sha256 'fc0bf2e2c45ff6274b0b75c0406d7c2290829dbc85ea42e4393e1ae409a6a901'
 
-  # amazonaws.com is the official download host per vendor homepage
+  # amazonaws.com/julianightlies was verified as official when first introduced to the cask
   url "https://s3.amazonaws.com/julianightlies/bin/osx/x64/#{version.sub(%r{(\d+\.\d+).*}, '\1')}/julia-#{version}-osx.dmg"
   name 'Julia'
   homepage 'http://julialang.org'
diff --git a/Casks/libreoffice-dev.rb b/Casks/libreoffice-dev.rb
index f376524d3..0c3cfecf4 100644
--- a/Casks/libreoffice-dev.rb
+++ b/Casks/libreoffice-dev.rb
@@ -2,6 +2,7 @@ cask 'libreoffice-dev' do
   version '5.2.0.0,beta1'
   sha256 '017daa1e2d2af8331512199b6ec1838938ee07eee472f6216048aa903a840dcc'
 
+  # documentfoundation.org/libreoffice was verified as official when first introduced to the cask
   url "https://download.documentfoundation.org/libreoffice/testing/#{version.major_minor_patch}/mac/x86_64/LibreOfficeDev_#{version.before_comma}.#{version.after_comma}_MacOS_x86-64.dmg"
   appcast 'https://download.documentfoundation.org/libreoffice/testing/',
           checkpoint: '769fef0ee2625c4adedf8d7d05a26f3c9367c657ab8edb587a8ca8e572a6e7fe'
diff --git a/Casks/mono-mdk-preview.rb b/Casks/mono-mdk-preview.rb
index e753c371b..4fb5339fa 100644
--- a/Casks/mono-mdk-preview.rb
+++ b/Casks/mono-mdk-preview.rb
@@ -2,6 +2,7 @@ cask 'mono-mdk-preview' do
   version '4.3.0.2114'
   sha256 :no_check # required as upstream package is updated in-place
 
+  # download.xamarin.com was verified as official when first introduced to the cask
   url "http://download.xamarin.com/roslyn-preview/MonoFramework-MDK-#{version}.macos10.xamarin.universal.pkg"
   name 'Mono'
   homepage 'http://mono-project.com'
diff --git a/Casks/openoffice-pt-br.rb b/Casks/openoffice-pt-br.rb
index 8bf236a05..65f109f41 100644
--- a/Casks/openoffice-pt-br.rb
+++ b/Casks/openoffice-pt-br.rb
@@ -2,7 +2,7 @@ cask 'openoffice-pt-br' do
   version '4.1.2'
   sha256 '1c5b48ea7bbe0bff839bc391ca7c74f5f7ab68291b99614b40a7e640e386f9eb'
 
-  # sourceforge.net is the official download host per the vendor homepage
+  # sourceforge.net/sourceforge/openofficeorg.mirror was verified as official when first introduced to the cask
   url "http://downloads.sourceforge.net/sourceforge/openofficeorg.mirror/Apache_OpenOffice_#{version}_MacOS_x86-64_install_pt-BR.dmg"
   name 'Apache OpenOffice'
   homepage 'https://www.openoffice.org/'
diff --git a/Casks/openrefine-dev.rb b/Casks/openrefine-dev.rb
index 5bb9f7f52..d2f6e74ba 100644
--- a/Casks/openrefine-dev.rb
+++ b/Casks/openrefine-dev.rb
@@ -2,6 +2,7 @@ cask 'openrefine-dev' do
   version '2.6-rc.2'
   sha256 '7703016e4935961ce89c26c0c4c780011329321ed32367082f329dae38704037'
 
+  # github.com/OpenRefine/OpenRefine was verified as official when first introduced to the cask
   url "https://github.com/OpenRefine/OpenRefine/releases/download/#{version}/openrefine-mac-#{version}.dmg"
   name 'OpenRefine'
   homepage 'http://openrefine.org/'
diff --git a/Casks/pokerstarseu.rb b/Casks/pokerstarseu.rb
index 3301f10d3..240741cde 100644
--- a/Casks/pokerstarseu.rb
+++ b/Casks/pokerstarseu.rb
@@ -4,7 +4,7 @@ cask 'pokerstarseu' do
 
   url 'https://www.pokerstars.eu/PokerStarsEU.app.zip'
   name 'PokerStars'
-  homepage 'https://www.pokerstars.com/'
+  homepage 'https://www.pokerstars.eu/'
   license :freemium
 
   auto_updates true
diff --git a/Casks/thunderbird-ja.rb b/Casks/thunderbird-ja.rb
index aba782474..026525fcc 100644
--- a/Casks/thunderbird-ja.rb
+++ b/Casks/thunderbird-ja.rb
@@ -2,6 +2,7 @@ cask 'thunderbird-ja' do
   version '45.2.0'
   sha256 '9d93b199bc4da73b651975d880492cc1b77289017f3968e070dcb57ca0366837'
 
+  # mozilla.org was verified as official when first introduced to the cask
   url "https://download.mozilla.org/?product=thunderbird-#{version}&os=osx&lang=ja-JP-mac"
   name 'Mozilla Thunderbird'
   homepage 'https://www.mozilla.jp/thunderbird/'
diff --git a/Casks/totalfinder-beta.rb b/Casks/totalfinder-beta.rb
index 5dcedadfd..2666b1311 100644
--- a/Casks/totalfinder-beta.rb
+++ b/Casks/totalfinder-beta.rb
@@ -6,7 +6,7 @@ cask 'totalfinder-beta' do
   name 'TotalFinder'
   homepage 'http://totalfinder.binaryage.com'
   license :commercial
-  
+
   depends_on macos: '>= :mavericks'
 
   pkg 'TotalFinder.pkg'
diff --git a/Casks/webstorm-eap.rb b/Casks/webstorm-eap.rb
index 1335f6569..e2bfb858d 100644
--- a/Casks/webstorm-eap.rb
+++ b/Casks/webstorm-eap.rb
@@ -9,7 +9,7 @@ cask 'webstorm-eap' do
 
   conflicts_with cask: 'webstorm'
 
-  app "WebStorm.app"
+  app 'WebStorm.app'
 
   uninstall delete: '/usr/local/bin/wstorm'