diff --git a/filters/allowlist.rpz b/filters/allowlist.rpz
index 353a92c..5c5c89c 100644
--- a/filters/allowlist.rpz
+++ b/filters/allowlist.rpz
@@ -4,3 +4,8 @@ exappupgrade.vivoglobal.com CNAME rpz-passthru.
 sysupgrade-api.vivoglobal.com CNAME rpz-passthru.
 keepass.info CNAME rpz-passthru.
 keepassdx.com CNAME rpz-passthru.
+
+; Hosting Providers / Domain Registrar
+ddos-guard.net CNAME rpz-passthru.
+blueangelhost.com CNAME rpz-passthru.
+markmonitor.com CNAME rpz-passthru.