diff --git a/tests/domains.test.js b/tests/domains.test.js
index abb88004..03e2ccba 100644
--- a/tests/domains.test.js
+++ b/tests/domains.test.js
@@ -1,3 +1,18 @@
+const t = require("ava");
+const fs = require("fs-extra");
+const path = require("path");
+
+const domainsPath = path.resolve("domains");
+const files = fs.readdirSync(domainsPath);
+
+// Extract valid root domains dynamically from the files, ignoring specific TLDs
+const validRootDomains = Array.from(
+    new Set(
+        files
+            .map((file) => file.split(".").slice(-2).join("."))
+    )
+);
+
 t("Nested subdomains should not exist without a valid parent domain", (t) => {
     files.forEach((file) => {
         // Skip directories and process only .json files
@@ -13,7 +28,7 @@ t("Nested subdomains should not exist without a valid parent domain", (t) => {
             // Get the parent domain (remove the first part of the subdomain)
             const parentSubdomain = subdomain.split(".").slice(1).join(".");
 
-            // Ensure the parent subdomain exists
+            // Ensure the parent subdomain exists in the list of files
             t.true(
                 files.includes(`${parentSubdomain}.json`),
                 `${file}: Parent domain ${parentSubdomain}.json does not exist`
@@ -34,7 +49,7 @@ t("Nested subdomains should not exist if the parent domain has NS records", (t)
 
         const subdomain = file.replace(/\.json$/, "");
 
-        // Skip first-level subdomains (i.e., subdomains with only one part like "599.is-cool.dev")
+        // Skip first-level subdomains (i.e., subdomains with only one part like "dibster.is-cool.dev")
         if (subdomain.split(".").length > 2) {
             // Get the parent domain (remove the first part of the subdomain)
             const parentSubdomain = subdomain.split(".").slice(1).join(".");