diff --git a/knowledge base/cloud computing/aws/route53.md b/knowledge base/cloud computing/aws/route53.md
index 4b91a69..9dd5397 100644
--- a/knowledge base/cloud computing/aws/route53.md	
+++ b/knowledge base/cloud computing/aws/route53.md	
@@ -47,9 +47,10 @@ Allows to use the same domain name for both **internal** _and_ **external** uses
 
 Procedure:
 
+1. Enable DNS resolution and DNS hostnames for any VPC involved.
 1. Create public **and** private hosted zones with the same name.<br/>
    Split-view DNS will still work if using an external DNS service for the public hosted zone.
-1. Associate one or more VPCs with the private hosted zone.<br/>
+1. Associate one or more VPCs with the **private** hosted zone.<br/>
    Route 53 Resolver will use the private hosted zone to route DNS queries in the associated VPCs.
 1. Create records in each hosted zone.
 
@@ -58,12 +59,23 @@ Procedure:
 
 1. Use Route 53 Resolver to perform name resolution of **both** the associated VPC **and** on-premises workloads.
 
+DNS queries for **public** DNS record from VPCs attached to private hosted zone will **not** resolve and will give back
+`NXDOMAIN` errors.<br/>
+If a record doesn't exist in the private hosted zone, the DNS query **cannot** be forwarded to a public hosted zone.
+
+Resolve public DNS records from VPCs associated with private hosted zones by replicating all public records in the
+private hosted zone along with private records.<br/>
+Any query coming from a public DNS record will be resolved from the private hosted zone.
+
 ## Further readings
 
+- [Documentation]
+
 ### Sources
 
-- [What is Amazon Route 53?]
 - [Split-view DNS]
+- [Split-view DNS using Amazon Route 53]
+- [How do I use Route 53 to access an internal version of my website with the same domain name that is used publicly?]
 
 <!--
   Reference
@@ -75,6 +87,8 @@ Procedure:
 <!-- Files -->
 <!-- Upstream -->
 [split-view dns]: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/hosted-zone-private-considerations.html
-[what is amazon route 53?]: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/Welcome.html
+[documentation]: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/
+[how do i use route 53 to access an internal version of my website with the same domain name that is used publicly?]: https://repost.aws/knowledge-center/internal-version-website
 
 <!-- Others -->
+[split-view dns using amazon route 53]: https://tutorialsdojo.com/split-view-dns-using-amazon-route-53/