diff --git a/bbot/core/helpers/misc.py b/bbot/core/helpers/misc.py
index f128cf004..92c9e523f 100644
--- a/bbot/core/helpers/misc.py
+++ b/bbot/core/helpers/misc.py
@@ -559,13 +559,12 @@ def is_port(p):
     return p and p.isdigit() and 0 <= int(p) <= 65535
 
 
-def is_dns_name(d, include_local=True):
+def is_dns_name(d):
     """
     Determines if the given string is a valid DNS name.
 
     Args:
         d (str): The string to be checked.
-        include_local (bool): Consider local hostnames to be valid (hostnames without periods)
 
     Returns:
         bool: True if the string is a valid DNS name, False otherwise.
@@ -575,17 +574,12 @@ def is_dns_name(d, include_local=True):
         True
         >>> is_dns_name('localhost')
         True
-        >>> is_dns_name('localhost', include_local=False)
-        False
         >>> is_dns_name('192.168.1.1')
         False
     """
     if is_ip(d):
         return False
     d = smart_decode(d)
-    if include_local:
-        if bbot_regexes.hostname_regex.match(d):
-            return True
     if bbot_regexes.dns_name_validation_regex.match(d):
         return True
     return False
diff --git a/bbot/core/helpers/regexes.py b/bbot/core/helpers/regexes.py
index ee488ed7b..adf8abb65 100644
--- a/bbot/core/helpers/regexes.py
+++ b/bbot/core/helpers/regexes.py
@@ -43,10 +43,6 @@
 dns_name_extraction_regex = re.compile(_dns_name_regex, re.I)
 dns_name_validation_regex = re.compile(r"^" + _dns_name_regex + r"$", re.I)
 
-# dns names without periods
-_hostname_regex = r"(?!\w*\.\w+)\w(?:[\w-]{0,100}\w)?"
-hostname_regex = re.compile(r"^" + _hostname_regex + r"$", re.I)
-
 _email_regex = r"(?:[^\W_][\w\-\.\+']{,100})@" + _dns_name_regex
 email_regex = re.compile(_email_regex, re.I)
 
@@ -61,14 +57,12 @@
 
 _open_port_regexes = (
     _dns_name_regex + r":[0-9]{1,5}",
-    _hostname_regex + r":[0-9]{1,5}",
     r"\[" + _ipv6_regex + r"\]:[0-9]{1,5}",
 )
 open_port_regexes = [re.compile(r, re.I) for r in _open_port_regexes]
 
 _url_regexes = (
     r"https?://" + _dns_name_regex + r"(?::[0-9]{1,5})?(?:(?:/|\?).*)?",
-    r"https?://" + _hostname_regex + r"(?::[0-9]{1,5})?(?:(?:/|\?).*)?",
     r"https?://\[" + _ipv6_regex + r"\](?::[0-9]{1,5})?(?:(?:/|\?).*)?",
 )
 url_regexes = [re.compile(r, re.I) for r in _url_regexes]
@@ -83,10 +77,7 @@
         for k, regexes in (
             (
                 "DNS_NAME",
-                (
-                    r"^" + _dns_name_regex + r"$",
-                    r"^" + _hostname_regex + r"$",
-                ),
+                (r"^" + _dns_name_regex + r"$",),
             ),
             (
                 "EMAIL_ADDRESS",
diff --git a/bbot/modules/github_org.py b/bbot/modules/github_org.py
index 5b8571874..5417a4e2d 100644
--- a/bbot/modules/github_org.py
+++ b/bbot/modules/github_org.py
@@ -206,11 +206,7 @@ async def validate_org(self, org):
         for k, v in json.items():
             if (
                 isinstance(v, str)
-                and (
-                    self.helpers.is_dns_name(v, include_local=False)
-                    or self.helpers.is_url(v)
-                    or self.helpers.is_email(v)
-                )
+                and (self.helpers.is_dns_name(v) and "." in v or self.helpers.is_url(v) or self.helpers.is_email(v))
                 and self.scan.in_scope(v)
             ):
                 self.verbose(f'Found in-scope key "{k}": "{v}" for {org}, it appears to be in-scope')
diff --git a/bbot/test/test_step_1/test_helpers.py b/bbot/test/test_step_1/test_helpers.py
index 2eb67cd13..9cec29194 100644
--- a/bbot/test/test_step_1/test_helpers.py
+++ b/bbot/test/test_step_1/test_helpers.py
@@ -122,7 +122,7 @@ async def test_helpers_misc(helpers, scan, bbot_scanner, bbot_httpserver):
     assert not helpers.is_dns_name("evilcorp.com:80")
     assert not helpers.is_dns_name("http://evilcorp.com:80")
     assert helpers.is_dns_name("evilcorp")
-    assert not helpers.is_dns_name("evilcorp", include_local=False)
+    assert helpers.is_dns_name("evilcorp.")
     assert helpers.is_dns_name("ドメイン.テスト")
     assert not helpers.is_dns_name("127.0.0.1")
     assert not helpers.is_dns_name("dead::beef")