diff --git a/APIDOCS.md b/APIDOCS.md
index 8001e43c..609fd390 100644
--- a/APIDOCS.md
+++ b/APIDOCS.md
@@ -4767,7 +4767,7 @@ WHERE:
 - `zones` (optional): Set to `true` to backup DNS zone files. Default value is `false`.
 - `allowedZones` (optional): Set to `true` to backup allowed zones file. Default value is `false`.
 - `blockedZones` (optional): Set to `true` to backup blocked zones file. Default value is `false`.
-- `dnsSettings` (optional): Set to `true` to backup DNS settings and certificate files. The Web Service or Optional Protocols TLS certificate (.pfx) files will be included in the backup only if they exists within the DNS server's config folder. Default value is `false`.
+- `dnsSettings` (optional): Set to `true` to backup DNS settings and certificate files. The Web Service or Optional Protocols TLS certificate (.pfx) files will be included in the backup only if they exist within the DNS server's config folder. Default value is `false`.
 - `logSettings` (optional): Set to `true` to backup log settings file. Default value is `false`.
 - `authConfig` (optional): Set to `true` to backup the authentication config file. Default value is `false`.
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26d53b1f..d622508a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -100,7 +100,7 @@ Release Date: 12 August 2023
 
 - Added support for DNS over [PROXY protocol](https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt) version 1 and 2 for both UDP and TCP transports. This feature allows using a load balancer or reverse proxy in front of the DNS server such that the client's IP address information is passed to the DNS server. This can also be used to provide DNS-over-TLS service with a TLS terminating reverse proxy that forwards request to TCP-PROXY protocol port.
 - Updated TLS certificate implementation to allow the TLS handshake to always send the certificate chain.
-- Updated Backup and Restore feature to include Web Service and Optional Protocols certificate files when they exists within the DNS server's config folder.
+- Updated Backup and Restore feature to include Web Service and Optional Protocols certificate files when they exist within the DNS server's config folder.
 - Added DNS server uptime info in the About section.
 - Multiple other minor bug fixes and improvements.
 
diff --git a/DnsServerCore/Dns/ZoneManagers/CacheZoneManager.cs b/DnsServerCore/Dns/ZoneManagers/CacheZoneManager.cs
index 4878dfaf..516c2d56 100644
--- a/DnsServerCore/Dns/ZoneManagers/CacheZoneManager.cs
+++ b/DnsServerCore/Dns/ZoneManagers/CacheZoneManager.cs
@@ -558,7 +558,7 @@ namespace DnsServerCore.Dns.ZoneManagers
             if (minimumEntriesToRemove < 1)
                 return; //no need to remove
 
-            //remove stale records if they exists
+            //remove stale records if they exist
             if (serveStale)
                 minimumEntriesToRemove -= RemoveExpiredRecordsInternal(false, minimumEntriesToRemove);
 
diff --git a/DnsServerCore/www/index.html b/DnsServerCore/www/index.html
index 01e538e1..ea2ab260 100644
--- a/DnsServerCore/www/index.html
+++ b/DnsServerCore/www/index.html
@@ -5216,7 +5216,7 @@ MII...
                         </div>
                     </div>
 
-                    <p><b>Note!</b> The Web Service or Optional Protocols TLS certificate (.pfx) files will be included in the backup only if they exists within the DNS server's config folder.</p>
+                    <p><b>Note!</b> The Web Service or Optional Protocols TLS certificate (.pfx) files will be included in the backup only if they exist within the DNS server's config folder.</p>
 
                     <p><b>Note!</b> It may take several minutes to generate the backup zip file if log files are selected to be backed up which will depend on the size of the log files on the disk.</p>