diff --git a/data/mailru-group b/data/mailru-group
index f6e9dd3a..a5a2c10a 100644
--- a/data/mailru-group
+++ b/data/mailru-group
@@ -37,6 +37,12 @@ yclients.com
 xn--80asgb.xn--p1ai # майл.рф
 xn--e1aigb.xn--p1ai # мейл.рф
 
+# Unknown-purpose domains with DGA subdomains
+justveryok.com
+keyboardmen.com
+rabbitcounter.com
+sayeasy.eu
+
 # Ads and tracking
 ad.mail.ru @ads
 ads.viqeo.tv @ads
diff --git a/data/ok b/data/ok
index b7e5560c..c4630246 100644
--- a/data/ok
+++ b/data/ok
@@ -1,7 +1,15 @@
 apiok.ru
 insideok.ru
 odkl.ru
+odnoklasniki.by
+odnoklasniki.ua
+odnoklassniki.am
+odnoklassniki.by
+odnoklassniki.co.ee
+odnoklassniki.eu
+odnoklassniki.lv
 odnoklassniki.ru
+odnoklassniki.tj
 ok.me
 ok.ru
 okl.lt