diff --git a/科学上网/DNS是纯净无污染防劫持的.md b/科学上网/DNS是纯净无污染防劫持的.md
index 7e09c1f..14b91ab 100644
--- a/科学上网/DNS是纯净无污染防劫持的.md
+++ b/科学上网/DNS是纯净无污染防劫持的.md
@@ -3,3 +3,5 @@
 * https://baidns.cn/
 
 * https://pdomo.me/
+
+* https://tuna.moe/help/dns/