diff --git a/src/main/Main.coffee b/src/main/Main.coffee
index 1f820327a..6007b719a 100644
--- a/src/main/Main.coffee
+++ b/src/main/Main.coffee
@@ -67,10 +67,7 @@ Main =
     Conf['cooldowns'] = {}
     Conf['Index Sort'] = {}
     Conf["Last Long Reply Thresholds #{i}"] = {} for i in [0...2]
-    Conf['siteProperties'] =
-      '4chan.org':    {software: 'yotsuba'}
-      '4channel.org': {software: 'yotsuba'}
-      '4cdn.org':     {software: 'yotsuba'}
+    Conf['siteProperties'] = {}
 
     # XXX old key names
     Conf['Except Archives from Encryption'] = false
@@ -80,11 +77,7 @@ Main =
     Conf['QR Shortcut'] = true
     Conf['Bottom QR Link'] = true
     Conf['Toggleable Thread Watcher'] = true
-    Conf['siteSoftware'] = """
-      4chan.org yotsuba
-      4channel.org yotsuba
-      4cdn.org yotsuba
-    """
+    Conf['siteSoftware'] = ''
 
     # Enforce JS whitelist
     if /\.4chan(?:nel)?\.org$/.test(location.hostname) and !$$('script:not([src])', d).filter((s) -> /this\[/.test(s.textContent)).length
diff --git a/src/site/Site.coffee b/src/site/Site.coffee
index b33658864..4e2f0edea 100644
--- a/src/site/Site.coffee
+++ b/src/site/Site.coffee
@@ -1,5 +1,11 @@
 Site =
+  defaultProperties:
+    '4chan.org':    {software: 'yotsuba'}
+    '4channel.org': {software: 'yotsuba'}
+    '4cdn.org':     {software: 'yotsuba'}
+
   init: (cb) ->
+    $.extend Conf['siteProperties'], Site.defaultProperties
     {hostname} = location
     while hostname and hostname not of Conf['siteProperties']
       hostname = hostname.replace(/^[^.]*\.?/, '')