diff --git a/src/index.ts b/src/index.ts
index ab1b20f..fbd343a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,6 +7,7 @@ let resolver: ResolverModule;
 export function setup(rm: ResolverModule) {
   addHandler("resolve", handleResolve);
   addHandler("register", handleRegister);
+  addHandler("getSupportedTlds", handleGetSupportedTlds);
   onmessage = handleMessage;
   resolver = rm;
 }
@@ -42,4 +43,8 @@ async function handleResolve(aq: ActiveQuery) {
   aq.respond(ret);
 }
 
+function handleGetSupportedTlds(aq: ActiveQuery) {
+  aq.respond(resolver.getSupportedTlds());
+}
+
 export * from "./resolverRegistry.js";
diff --git a/src/resolverRegistry.ts b/src/resolverRegistry.ts
index d167bd5..e4e4087 100644
--- a/src/resolverRegistry.ts
+++ b/src/resolverRegistry.ts
@@ -71,6 +71,14 @@ export class ResolverModule {
       return resolverError(err);
     }
 
+    return ret;
+  }
+  async getSupportedTlds(): Promise<string[]> {
+    const [ret, err] = await callModule(this.domain, "getSupportedTlds");
+    if (err) {
+      throw new Error(err);
+    }
+
     return ret;
   }
 }