diff --git a/src/registrar/config/urls.py b/src/registrar/config/urls.py
index 1487d372a..7caa64e5c 100644
--- a/src/registrar/config/urls.py
+++ b/src/registrar/config/urls.py
@@ -90,11 +90,6 @@ urlpatterns = [
         views.DomainNameserversView.as_view(),
         name="domain-dns-nameservers",
     ),
-    path(
-        "domain/<int:pk>/dns/subdomains",
-        views.DomainSubdomainsView.as_view(),
-        name="domain-dns-subdomains",
-    ),
     path(
         "domain/<int:pk>/dns/dnssec",
         views.DomainDNSSECView.as_view(),
diff --git a/src/registrar/forms/domain.py b/src/registrar/forms/domain.py
index eb71a00fe..d0cbb9980 100644
--- a/src/registrar/forms/domain.py
+++ b/src/registrar/forms/domain.py
@@ -199,11 +199,6 @@ class DomainDsdataForm(forms.Form):
         #     )
         # ],
     )
-    
-    # delete = forms.BooleanField(
-    #     required=False,
-    #     label="Delete",
-    # )
 
     # TODO: Conditional DS Key Data fields
     
@@ -217,12 +212,6 @@ DomainDsdataFormset = formset_factory(
 class DomainKeydataForm(forms.Form):
 
     """Form for adding or editing DNSSEC key data."""
-    # TODO: ds key data
-    # has_ds_key_data = forms.TypedChoiceField(
-    #     required=True,
-    #     label="DS Data record type",
-    #     choices=[(False, "DS Data"), (True, "DS Data with Key Data")],
-    # )
 
     flag = forms.TypedChoiceField(
         required=True,
@@ -235,13 +224,6 @@ class DomainKeydataForm(forms.Form):
         label="Protocol",
         choices=PROTOCOL_CHOICES,
     )
-    # protocol = forms.IntegerField(
-    #     max_value=3,
-    #     min_value=3,
-    #     initial=3,
-    #     required=True,
-    #     disabled=True,
-    # )
 
     algorithm = forms.TypedChoiceField(
         required=True,
@@ -253,15 +235,7 @@ class DomainKeydataForm(forms.Form):
         required=True,
         label="Pub key",
     )
-    
-    # delete = forms.BooleanField(
-    #     required=False,
-    #     label="Delete",
-    # )
 
-    # TODO: Conditional DS Key Data fields
-    
-    
 
 DomainKeydataFormset = formset_factory(
     DomainKeydataForm,
diff --git a/src/registrar/models/domain.py b/src/registrar/models/domain.py
index 34f23261d..56a1a53cb 100644
--- a/src/registrar/models/domain.py
+++ b/src/registrar/models/domain.py
@@ -291,7 +291,7 @@ class Domain(TimeStampedModel, DomainHelper):
             return None
 
     @dnssecdata.setter  # type: ignore
-    def dnssecdata(self, _dnssecdata: extensions.DNSSECExtension):
+    def dnssecdata(self, _dnssecdata: dict):
         updateParams = {
             "maxSigLife": _dnssecdata.get("maxSigLife", None),
             "dsData": _dnssecdata.get("dsData", None),
diff --git a/src/registrar/templates/domain_dns.html b/src/registrar/templates/domain_dns.html
index c793df5e9..0133a8b07 100644
--- a/src/registrar/templates/domain_dns.html
+++ b/src/registrar/templates/domain_dns.html
@@ -14,9 +14,6 @@
   {% url 'domain-dns-nameservers' pk=domain.id as url %}
   <p><a href="{{ url }}">DNS name servers</a></p>
 
-  {% url 'domain-subdomains' pk=domain.id as url %}
-  <p><a href="{{ url }}">Subdomain records</a></p>
-
   {% url 'domain-dnssec' pk=domain.id as url %}
   <p><a href="{{ url }}">DNSSEC</a></p>
 
diff --git a/src/registrar/templates/domain_sidebar.html b/src/registrar/templates/domain_sidebar.html
index e81186c43..d31ce613a 100644
--- a/src/registrar/templates/domain_sidebar.html
+++ b/src/registrar/templates/domain_sidebar.html
@@ -27,15 +27,6 @@
             </a>
           </li>
 
-          <li class="usa-sidenav__item">
-            {% url 'domain-dns-subdomains' pk=domain.id as url %}
-            <a href="{{ url }}"
-              {% if request.path == url %}class="usa-current"{% endif %}
-            >
-                Subdomain records
-            </a>
-          </li>
-
           <li class="usa-sidenav__item">
             {% url 'domain-dns-dnssec' pk=domain.id as url %}
             <a href="{{ url }}"
diff --git a/src/registrar/templates/domain_subdomains.html b/src/registrar/templates/domain_subdomains.html
deleted file mode 100644
index 9f5aa6f81..000000000
--- a/src/registrar/templates/domain_subdomains.html
+++ /dev/null
@@ -1,16 +0,0 @@
-{% extends "domain_base.html" %}
-{% load static field_helpers url_helpers %}
-
-{% block title %}Subdomain records | {{ domain.name }} | {% endblock %}
-
-{% block domain_content %}
-
-  <h1>Subdomain records</h1>
-
-  <p>Subdomains allow you to host multiple services under the same domain and create subsets of your website. For example, blogs are often set up as a subdomain (blog.example.gov).</p>
-
-  <p>Subdomains cannot be requested through the .gov registrar. Those must be set up ... NEED ADDITIONAL COPY HERE</p>
-
-  <p>If you use subdomains, enter those records (also known as glue records) below.</p>
-
-{% endblock %}  {# domain_content #}
diff --git a/src/registrar/views/__init__.py b/src/registrar/views/__init__.py
index 8a04fa186..5bca4e1d5 100644
--- a/src/registrar/views/__init__.py
+++ b/src/registrar/views/__init__.py
@@ -5,7 +5,6 @@ from .domain import (
     DomainOrgNameAddressView,
     DomainDNSView,
     DomainNameserversView,
-    DomainSubdomainsView,
     DomainDNSSECView,
     DomainDsdataView,
     DomainKeydataView,
diff --git a/src/registrar/views/domain.py b/src/registrar/views/domain.py
index 2c61248b6..53dd0714c 100644
--- a/src/registrar/views/domain.py
+++ b/src/registrar/views/domain.py
@@ -227,13 +227,6 @@ class DomainNameserversView(DomainPermissionView, FormMixin):
         return super().form_valid(formset)
 
 
-class DomainSubdomainsView(DomainPermissionView):
-
-    """Domain subdomains editing view."""
-
-    template_name = "domain_subdomains.html"
-
-
 class DomainDNSSECView(DomainPermissionView, FormMixin):
 
     """Domain DNSSEC editing view."""