diff --git a/site/docs/4.3/components/navs.md b/site/docs/4.3/components/navs.md
index 21375f18c1cf..6404f03a26ff 100644
--- a/site/docs/4.3/components/navs.md
+++ b/site/docs/4.3/components/navs.md
@@ -221,7 +221,7 @@ For equal-width elements, use `.nav-justified`. All horizontal space will be occ
     <a class="nav-link" href="#">Link</a>
   </li>
   <li class="nav-item">
-    <a class="nav-link disabled" href="#">Disabled</a>
+    <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
   </li>
 </ul>
 {% endcapture %}
diff --git a/site/docs/4.3/examples/carousel/index.html b/site/docs/4.3/examples/carousel/index.html
index 7c5fb66771ce..5f63fa35fcf2 100644
--- a/site/docs/4.3/examples/carousel/index.html
+++ b/site/docs/4.3/examples/carousel/index.html
@@ -19,7 +19,7 @@
           <a class="nav-link" href="#">Link</a>
         </li>
         <li class="nav-item">
-          <a class="nav-link disabled" href="#">Disabled</a>
+          <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
         </li>
       </ul>
       <form class="form-inline mt-2 mt-md-0">
diff --git a/site/docs/4.3/examples/jumbotron/index.html b/site/docs/4.3/examples/jumbotron/index.html
index 376e75e41c50..a2e5140322fa 100644
--- a/site/docs/4.3/examples/jumbotron/index.html
+++ b/site/docs/4.3/examples/jumbotron/index.html
@@ -19,7 +19,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
diff --git a/site/docs/4.3/examples/navbar-bottom/index.html b/site/docs/4.3/examples/navbar-bottom/index.html
index 97f7e0b5d567..06e7465fb0a5 100644
--- a/site/docs/4.3/examples/navbar-bottom/index.html
+++ b/site/docs/4.3/examples/navbar-bottom/index.html
@@ -24,7 +24,7 @@ <h1>Bottom Navbar example</h1>
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropup">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown10" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropup</a>
diff --git a/site/docs/4.3/examples/navbar-fixed/index.html b/site/docs/4.3/examples/navbar-fixed/index.html
index 2a76f15ecef1..b456d768b55c 100644
--- a/site/docs/4.3/examples/navbar-fixed/index.html
+++ b/site/docs/4.3/examples/navbar-fixed/index.html
@@ -18,7 +18,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
     </ul>
     <form class="form-inline mt-2 mt-md-0">
diff --git a/site/docs/4.3/examples/navbars/index.html b/site/docs/4.3/examples/navbars/index.html
index a5e687bf54b0..d49af9771f5c 100644
--- a/site/docs/4.3/examples/navbars/index.html
+++ b/site/docs/4.3/examples/navbars/index.html
@@ -19,7 +19,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
@@ -72,7 +72,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown03" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
@@ -104,7 +104,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown04" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
@@ -136,7 +136,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown05" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
@@ -168,7 +168,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown06" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
@@ -201,7 +201,7 @@
           <a class="nav-link" href="#">Link</a>
         </li>
         <li class="nav-item">
-          <a class="nav-link disabled" href="#">Disabled</a>
+          <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
         </li>
         <li class="nav-item dropdown">
           <a class="nav-link dropdown-toggle" href="#" id="dropdown07" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
@@ -233,7 +233,7 @@
         <a class="nav-link" href="#">Link</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link disabled" href="#">Disabled</a>
+        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
       </li>
       <li class="nav-item dropdown">
         <a class="nav-link dropdown-toggle" href="#" id="dropdown08" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>