diff --git a/package-lock.json b/package-lock.json
index 4f86780..bbfe28b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,8 @@
       "version": "3.9.0",
       "license": "MIT",
       "dependencies": {
-        "punycode": "^2.3.0"
+        "punycode": "^2.3.0",
+        "tldts": "^6.1.18"
       },
       "devDependencies": {
         "@babel/core": "^7.21.3",
@@ -14896,6 +14897,22 @@
       "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==",
       "dev": true
     },
+    "node_modules/tldts": {
+      "version": "6.1.18",
+      "resolved": "https://registry.npmjs.org/tldts/-/tldts-6.1.18.tgz",
+      "integrity": "sha512-F+6zjPFnFxZ0h6uGb8neQWwHQm8u3orZVFribsGq4eBgEVrzSkHxzWS2l6aKr19T1vXiOMFjqfff4fQt+WgJFg==",
+      "dependencies": {
+        "tldts-core": "^6.1.18"
+      },
+      "bin": {
+        "tldts": "bin/cli.js"
+      }
+    },
+    "node_modules/tldts-core": {
+      "version": "6.1.18",
+      "resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-6.1.18.tgz",
+      "integrity": "sha512-e4wx32F/7dMBSZyKAx825Yte3U0PQtZZ0bkWxYQiwLteRVnQ5zM40fEbi0IyNtwQssgJAk3GCr7Q+w39hX0VKA=="
+    },
     "node_modules/tmp": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
@@ -27147,6 +27164,19 @@
       "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==",
       "dev": true
     },
+    "tldts": {
+      "version": "6.1.18",
+      "resolved": "https://registry.npmjs.org/tldts/-/tldts-6.1.18.tgz",
+      "integrity": "sha512-F+6zjPFnFxZ0h6uGb8neQWwHQm8u3orZVFribsGq4eBgEVrzSkHxzWS2l6aKr19T1vXiOMFjqfff4fQt+WgJFg==",
+      "requires": {
+        "tldts-core": "^6.1.18"
+      }
+    },
+    "tldts-core": {
+      "version": "6.1.18",
+      "resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-6.1.18.tgz",
+      "integrity": "sha512-e4wx32F/7dMBSZyKAx825Yte3U0PQtZZ0bkWxYQiwLteRVnQ5zM40fEbi0IyNtwQssgJAk3GCr7Q+w39hX0VKA=="
+    },
     "tmp": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
diff --git a/package.json b/package.json
index 655c8d1..fa32ec8 100644
--- a/package.json
+++ b/package.json
@@ -43,6 +43,7 @@
     "webpack-merge": "^5.8.0"
   },
   "dependencies": {
-    "punycode": "^2.3.0"
+    "punycode": "^2.3.0",
+    "tldts": "^6.1.18"
   }
 }
diff --git a/src/ExtendedURL/__tests__/ExtendURL.spec.js b/src/ExtendedURL/__tests__/ExtendURL.spec.js
index 044bfc9..c0c53b0 100644
--- a/src/ExtendedURL/__tests__/ExtendURL.spec.js
+++ b/src/ExtendedURL/__tests__/ExtendURL.spec.js
@@ -8,5 +8,33 @@ describe('utils', () => {
     expect(eUrl.tld).toEqual('com');
   });
 
+  it('should ignore IP addresses', function() {
+    const eUrl = new ExtendedURL('https://192.0.2.123');
+    expect(eUrl.domain).toEqual('192.0.2.123');
+    expect(eUrl.tld).toEqual('192.0.2.123');
+  });
+
+  it('should understand second-level TLDs', function() {
+    const eUrl = new ExtendedURL('https://amazon.co.uk');
+    expect(eUrl.domain).toEqual('amazon');
+    expect(eUrl.tld).toEqual('co.uk');
+  });
+
+  it('should understand public suffix TLDs', function() {
+    const eUrl = new ExtendedURL('https://kintesh.github.io');
+    expect(eUrl.domain).toEqual('kintesh');
+    expect(eUrl.tld).toEqual('github.io');
+  });
+
+  it('should ignore localhost', function() {
+    const eUrl = new ExtendedURL('https://localhost');
+    expect(eUrl.domain).toEqual('localhost');
+    expect(eUrl.tld).toEqual('localhost');
+  });
 
+  it('accepts unknown domains', function() {
+    const eUrl = new ExtendedURL('https://some.fake_host.test_test');
+    expect(eUrl.domain).toEqual('fake_host');
+    expect(eUrl.tld).toEqual('test_test');
+  });
 });
diff --git a/src/ExtendedURL/index.js b/src/ExtendedURL/index.js
index fab9f84..a05e51c 100644
--- a/src/ExtendedURL/index.js
+++ b/src/ExtendedURL/index.js
@@ -1,12 +1,18 @@
+import { parse } from 'tldts';
+
 export default class ExtendedURL extends URL {
   constructor(url) {
     super(url);
-    const split = this.hostname.split('.');
-    this.tld = split[split.length - 1];
-    if (split.length > 1) {
-      this.domain = split[split.length - 2];
+    const parseResult = parse(this.hostname, {
+      allowPrivateDomains: true,
+      extractHostname: false,
+    });
+
+    if (parseResult.isIp) {
+      this.domain = this.tld = parseResult.hostname;
     } else {
-      this.domain = this.tld;
+      this.tld = parseResult.publicSuffix;
+      this.domain = parseResult.domainWithoutSuffix || this.hostname;
     }
   }
 }