diff --git a/content/zh/docs/products/structure/core-concept/_index.md b/content/zh/docs/products/structure/core-concept/_index.md
index 90337733..e30a656b 100644
--- a/content/zh/docs/products/structure/core-concept/_index.md
+++ b/content/zh/docs/products/structure/core-concept/_index.md
@@ -8,7 +8,7 @@ weight: 2
 aliases: "/zh/docs/core-concept"
 ---
 
-MOSN 主要划分为如下模块，包括了网络代理具备的基础能力，也包含了 [xDS](https://www.servicemesher.com/blog/envoy-xds-protocol/) 等云原生能力。
+MOSN 主要划分为如下模块，包括了网络代理具备的基础能力，也包含了 [xDS](https://cloudnative.to/blog/envoy-xds-protocol/) 等云原生能力。
 
 ![MOSN 模块大图](mosn-modules-arch.jpg)