diff --git a/components/newlib/Kconfig b/components/newlib/Kconfig
index c00ab0cc03..98e63e8c03 100644
--- a/components/newlib/Kconfig
+++ b/components/newlib/Kconfig
@@ -59,7 +59,7 @@ menu "Newlib"
 
             For more details about "nano" formatting option, please see newlib readme file,
             search for '--enable-newlib-nano-formatted-io':
-            https://sourceware.org/newlib/README
+            https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/README;hb=HEAD
 
             If this option is enabled and the ROM contains functions from newlib-nano, the build system
             will use functions available in ROM, reducing the application binary size.
diff --git a/docs/en/api-guides/performance/speed.rst b/docs/en/api-guides/performance/speed.rst
index fa2b10fced..eb8921d18d 100644
--- a/docs/en/api-guides/performance/speed.rst
+++ b/docs/en/api-guides/performance/speed.rst
@@ -232,7 +232,7 @@ Common priorities are:
 
         - The Ethernet driver creates a task for the MAC to receive Ethernet frames. If using the default config ``ETH_MAC_DEFAULT_CONFIG`` then the priority is medium-high (15) and the task is not pinned to any core. These settings can be changed by passing a custom :cpp:class:`eth_mac_config_t` struct when initializing the Ethernet MAC.
         - If using the :doc:`/api-reference/protocols/mqtt` component, it creates a task with default priority 5 (:ref:`configurable <CONFIG_MQTT_TASK_PRIORITY>`, depending on :ref:`CONFIG_MQTT_USE_CUSTOM_CONFIG`) and not pinned to any core (:ref:`configurable <CONFIG_MQTT_TASK_CORE_SELECTION_ENABLED>`).
-        - To see what is the task priority for ``mDNS`` service, please check `Performance Optimization <https://espressif.github.io/esp-protocols/mdns/en/index.html#performance-optimization>`__.
+        - To see what is the task priority for ``mDNS`` service, please check `Performance Optimization <https://docs.espressif.com/projects/esp-protocols/mdns/docs/latest/en/index.html#performance-optimization>`__.
 
 
 Choosing Task Priorities of the Application
diff --git a/docs/zh_CN/api-guides/performance/speed.rst b/docs/zh_CN/api-guides/performance/speed.rst
index e5be50dd98..81c53f0ff5 100644
--- a/docs/zh_CN/api-guides/performance/speed.rst
+++ b/docs/zh_CN/api-guides/performance/speed.rst
@@ -231,7 +231,7 @@ ESP-IDF 启动的系统任务预设了固定优先级。启动时，一些任务
 
         - 以太网驱动程序会创建一个 MAC 任务，用于接收以太网帧。如果使用默认配置 ``ETH_MAC_DEFAULT_CONFIG`` ，则该任务为中高优先级 (15) 且并未固定在特定内核上执行。可以在以太网 MAC 初始化时输入自定义 :cpp:class:`eth_mac_config_t` 结构体来更改此设置。
         - 如果使用 :doc:`/api-reference/protocols/mqtt` 组件，它会创建优先级默认为 5 的任务（ :ref:`可配置 <CONFIG_MQTT_TASK_PRIORITY>` ，也可通过 :ref:`CONFIG_MQTT_USE_CUSTOM_CONFIG` 调整）。该任务未固定在特定内核上执行（ :ref:`可配置 <CONFIG_MQTT_TASK_CORE_SELECTION_ENABLED>` ）。
-        - 关于 ``mDNS`` 服务的任务优先级，参见 `性能优化 <https://espressif.github.io/esp-protocols/mdns/en/index.html#performance-optimization>`__ 。
+        - 关于 ``mDNS`` 服务的任务优先级，参见 `性能优化 <https://docs.espressif.com/projects/esp-protocols/mdns/docs/latest/en/index.html#performance-optimization>`__ 。
 
 
 设定应用程序任务优先级