diff --git a/pyproject.toml b/pyproject.toml
index 4471913e..83b6d633 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,6 +50,7 @@ include = ["CHANGES.md", "docs/*", "docs/validators.1", "validators/py.typed"]
 [tool.poetry.dependencies]
 python = "^3.8"
 eth-hash = {extras = ["pycryptodome"], version = "^0.5.2"}
+requests = "^2.31.0"
 
 [tool.poetry.group.docs]
 optional = true
diff --git a/tests/test_domain.py b/tests/test_domain.py
index bfea791d..765e7c20 100644
--- a/tests/test_domain.py
+++ b/tests/test_domain.py
@@ -49,6 +49,8 @@ def test_returns_true_on_valid_domain(value: str, rfc_1034: bool, rfc_2782: bool
         ("123.123", False, False),
         ("123.123.123.", True, False),
         ("123.123.123.123", False, False),
+        ("sanpellegrino-corporate.itOLDWEBSITE", False, False),
+        ("sanpellegrino-corporate.itOLDWEBSITE.", True, False),
     ],
 )
 def test_returns_failed_validation_on_invalid_domain(value: str, rfc_1034: bool, rfc_2782: bool):
diff --git a/validators/domain.py b/validators/domain.py
index 3866ab4f..733c271c 100644
--- a/validators/domain.py
+++ b/validators/domain.py
@@ -3,9 +3,23 @@
 
 # standard
 import re
+import requests
 
 # local
-from .utils import validator
+from validators.utils import validator
+
+
+# Function to download the TLD list and create a set of valid TLDs
+def get_valid_tlds():
+    """Return a set of regularly updated valid TLDs from inaa.org ."""
+    response = requests.get("https://data.iana.org/TLD/tlds-alpha-by-domain.txt", timeout=30)
+    if response.status_code != 200:
+        return None
+    tlds = response.text.strip().split("\n")[1:]
+    return tlds
+
+
+VALID_TLDS = get_valid_tlds()
 
 
 @validator
@@ -42,11 +56,25 @@ def domain(value: str, /, *, rfc_1034: bool = False, rfc_2782: bool = False):
         - *In version 0.10.0*:
             - Added support for internationalized domain name (IDN) validation.
 
-    > *New in version 0.9.0*.
+        - *In version 0.21.0*:
+            - Added active TLD validation.
+
+    > *New in version 0.21.0*.
     """
     if not value:
         return False
     try:
+        # Check if the TLD is active
+        if rfc_1034 and value.endswith("."):
+            tld = value.rstrip(".")
+            _, tld = tld.rsplit(".", 1)
+        else:
+            _, tld = value.rsplit(".", 1)
+
+        if VALID_TLDS:
+            if tld.upper() not in VALID_TLDS:
+                return False
+
         return not re.search(r"\s", value) and re.match(
             # First character of the domain
             rf"^(?:[a-zA-Z0-9{'_'if rfc_2782 else ''}]"
diff --git a/validators/email.py b/validators/email.py
index 4ad23137..f1dd8b67 100644
--- a/validators/email.py
+++ b/validators/email.py
@@ -5,8 +5,8 @@
 import re
 
 # local
-from .hostname import hostname
-from .utils import validator
+from validators.hostname import hostname
+from validators.utils import validator
 
 
 @validator