diff --git a/ns-blacklist.txt b/ns-blacklist.txt
index 91346f1306..8b9d782278 100644
--- a/ns-blacklist.txt
+++ b/ns-blacklist.txt
@@ -38,3 +38,4 @@ status: NXDOMAIN
 .worldnic.com.
 .ftchinese.com.
 .name.com.
+.1-api.org.