diff --git a/server/routers/siteResource/createSiteResource.ts b/server/routers/siteResource/createSiteResource.ts
index d2bb1665..c103b09e 100644
--- a/server/routers/siteResource/createSiteResource.ts
+++ b/server/routers/siteResource/createSiteResource.ts
@@ -68,7 +68,7 @@ const createSiteResourceSchema = z
                 const domainRegex =
                     /^(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)*[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$/;
                 const isValidDomain = domainRegex.test(data.destination);
-                const isValidAlias = data.alias && domainRegex.test(data.alias);
+                const isValidAlias = data.alias !== undefined && data.alias !== null && data.alias.trim() !== "";
 
                 return isValidDomain && isValidAlias; // require the alias to be set in the case of domain
             }
diff --git a/server/routers/siteResource/updateSiteResource.ts b/server/routers/siteResource/updateSiteResource.ts
index 17a4033e..c3360e6f 100644
--- a/server/routers/siteResource/updateSiteResource.ts
+++ b/server/routers/siteResource/updateSiteResource.ts
@@ -78,7 +78,7 @@ const updateSiteResourceSchema = z
                 const domainRegex =
                     /^(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)*[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$/;
                 const isValidDomain = domainRegex.test(data.destination);
-                const isValidAlias = data.alias && domainRegex.test(data.alias);
+                const isValidAlias = data.alias !== undefined && data.alias !== null && data.alias.trim() !== "";
 
                 return isValidDomain && isValidAlias; // require the alias to be set in the case of domain
             }