diff --git a/_config.yml b/_config.yml
index 60ce6025..9a6df854 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,5 +1,5 @@
 repositoryUrl: https://github.com/Dynamsoft/web-twain-docs/blob/master
-firstLevelUrl: /web-twain
+firstLevelUrl: /web-twain/docs
 docFullPath: https://www.dynamsoft.com/web-twain/docs
 productUrl: https://www.dynamsoft.com/Products/WebTWAIN_Overview.aspx
 productName: Dynamic Web TWAIN
diff --git a/_includes/sidelist-about/about.html b/_includes/sidelist-about/about.html
index 587ac4b4..c16adccc 100644
--- a/_includes/sidelist-about/about.html
+++ b/_includes/sidelist-about/about.html
@@ -1,4 +1,4 @@
-<li><a href="{{ site.about }}index.html" class="otherLinkColour">About</a>
+<li><a href="{{ site.about }}" class="otherLinkColour">About</a>
   <ul>
       {%- if page.url contains '/about/' -%}
       <li><a href="{{ site.about }}features.html" class="otherLinkColour">Features</a></li>
diff --git a/_includes/sidelist-getting-started/getting-started.html b/_includes/sidelist-getting-started/getting-started.html
index 2d074f93..ce621ed3 100644
--- a/_includes/sidelist-getting-started/getting-started.html
+++ b/_includes/sidelist-getting-started/getting-started.html
@@ -1,4 +1,4 @@
-<li><a href="{{ site.getstarted }}index.html" class="otherLinkColour">Getting Started</a>
+<li><a href="{{ site.getstarted }}" class="otherLinkColour">Getting Started</a>
   <ul>
     {%- if page.url contains '/getstarted/' -%}
     <li><a href="{{ site.getstarted }}helloworld.html" class="otherLinkColour">HelloWorld</a></li>
diff --git a/_includes/sidelist-indepth/deployment.html b/_includes/sidelist-indepth/deployment.html
index 413a2569..32d34ace 100644
--- a/_includes/sidelist-indepth/deployment.html
+++ b/_includes/sidelist-indepth/deployment.html
@@ -1,4 +1,4 @@
-<li><a href="{{ site.indepth }}deployment/index.html" class="otherLinkColour">Deployment</a>
+<li><a href="{{ site.indepth }}deployment" class="otherLinkColour">Deployment</a>
   <ul>
     {%- if page.url contains '/indepth/deployment/' -%}
     <li><a href="{{ site.indepth }}deployment/server.html" class="otherLinkColour">Server Setup</a></li>
diff --git a/_includes/sidelist-indepth/development.html b/_includes/sidelist-indepth/development.html
index a3b841f1..95396eaa 100644
--- a/_includes/sidelist-indepth/development.html
+++ b/_includes/sidelist-indepth/development.html
@@ -1,4 +1,4 @@
-<li><a href="{{ site.indepth }}development/index.html" class="otherLinkColour">Development</a>
+<li><a href="{{ site.indepth }}development" class="otherLinkColour">Development</a>
   <ul>
     {%- if page.url contains '/indepth/development/' -%}
     <li><a href="{{site.indepth}}development/angular.html" class="otherLinkColour">Angular Integration</a></li>
diff --git a/_includes/sidelist-indepth/features.html b/_includes/sidelist-indepth/features.html
index 1d661280..9d37683f 100644
--- a/_includes/sidelist-indepth/features.html
+++ b/_includes/sidelist-indepth/features.html
@@ -1,4 +1,4 @@
-<li><a href="{{ site.indepth }}features/index.html" class="otherLinkColour">Features</a>
+<li><a href="{{ site.indepth }}features" class="otherLinkColour">Features</a>
   <ul>
     {%- if page.url contains '/indepth/features/' -%}
     <li><a href="{{ site.indepth }}features/initialize.html" class="otherLinkColour">Initialize</a></li>
diff --git a/_includes/sidelist-indepth/troubleshooting.html b/_includes/sidelist-indepth/troubleshooting.html
index faebc783..981b0187 100644
--- a/_includes/sidelist-indepth/troubleshooting.html
+++ b/_includes/sidelist-indepth/troubleshooting.html
@@ -1,4 +1,4 @@
-<li><a href="{{ site.indepth }}troubleshooting/index.html" class="otherLinkColour">Troubleshooting</a>
+<li><a href="{{ site.indepth }}troubleshooting" class="otherLinkColour">Troubleshooting</a>
   <ul>
     {%- if page.url contains '/indepth/troubleshooting/' -%}
     <li><a href="{{ site.indepth }}troubleshooting/debug.html" class="otherLinkColour">How to Debug</a></li>
diff --git a/_includes/sidelist-info/API-index.html b/_includes/sidelist-info/API-index.html
index dbc74d40..7239b8c0 100644
--- a/_includes/sidelist-info/API-index.html
+++ b/_includes/sidelist-info/API-index.html
@@ -1,4 +1,4 @@
-<li><a href="{{site.info}}api/index.html" class="otherLinkColour">API Reference</a>
+<li><a href="{{site.info}}api" class="otherLinkColour">API Reference</a>
   <ul>
       {%- if page.url contains '/api/' -%}
       <li><a href="{{site.info}}api/Dynamsoft_WebTwainEnv.html" class="otherLinkColour">Dynamsoft_WebTwainEnv</a></li>
diff --git a/_includes/sidelist-info/releases.html b/_includes/sidelist-info/releases.html
index afcf7419..79482e82 100644
--- a/_includes/sidelist-info/releases.html
+++ b/_includes/sidelist-info/releases.html
@@ -1,4 +1,4 @@
-<li><a href="{{site.info}}schedule/index.html" class="otherLinkColour">Schedule</a>
+<li><a href="{{site.info}}schedule" class="otherLinkColour">Schedule</a>
   <ul>
     {%- if page.url contains '/schedule/' -%}
     <li><a href="{{site.info}}schedule/stable.html" class="otherLinkColour">Stable</a></li>