diff --git a/readthedocs/settings/base.py b/readthedocs/settings/base.py
index 64f11e30a47..604c88f2564 100644
--- a/readthedocs/settings/base.py
+++ b/readthedocs/settings/base.py
@@ -248,7 +248,6 @@ def INSTALLED_APPS(self):  # noqa
             'readthedocs.notifications',
             'readthedocs.integrations',
             'readthedocs.analytics',
-            'readthedocs.sphinx_domains',
             'readthedocs.search',
             'readthedocs.embed',
             'readthedocs.telemetry',
diff --git a/readthedocs/sphinx_domains/__init__.py b/readthedocs/sphinx_domains/__init__.py
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/readthedocs/sphinx_domains/admin.py b/readthedocs/sphinx_domains/admin.py
deleted file mode 100644
index a92b5a30e58..00000000000
--- a/readthedocs/sphinx_domains/admin.py
+++ /dev/null
@@ -1,16 +0,0 @@
-"""Domain Admin classes."""
-from django.contrib import admin
-
-from .models import SphinxDomain
-
-
-class SphinxDomainAdmin(admin.ModelAdmin):
-    list_filter = ('type',)
-    list_display = ('__str__', 'version', 'build')
-    search_fields = ('doc_name', 'name', 'project__slug', 'version__slug', 'build')
-    readonly_fields = ('created', 'modified')
-    raw_id_fields = ('project', 'version', 'html_file')
-    list_select_related = ('project', 'version', 'version__project')
-
-
-admin.site.register(SphinxDomain, SphinxDomainAdmin)
diff --git a/readthedocs/sphinx_domains/apps.py b/readthedocs/sphinx_domains/apps.py
deleted file mode 100644
index b20999dbd13..00000000000
--- a/readthedocs/sphinx_domains/apps.py
+++ /dev/null
@@ -1,8 +0,0 @@
-"""Sphinx domains app."""
-
-from django.apps import AppConfig
-
-
-class SphinxDomainsConfig(AppConfig):
-    default_auto_field = "django.db.models.BigAutoField"
-    name = "readthedocs.sphinx_domains"
diff --git a/readthedocs/sphinx_domains/migrations/0001_initial.py b/readthedocs/sphinx_domains/migrations/0001_initial.py
deleted file mode 100644
index 19b2bbef34c..00000000000
--- a/readthedocs/sphinx_domains/migrations/0001_initial.py
+++ /dev/null
@@ -1,39 +0,0 @@
-# Generated by Django 1.11.20 on 2019-02-27 16:23
-import django.db.models.deletion
-import django_extensions.db.fields
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    initial = True
-
-    dependencies = [
-        ('builds', '0006_add_config_field'),
-        ('projects', '0040_increase_path_max_length'),
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='SphinxDomain',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('created', django_extensions.db.fields.CreationDateTimeField(auto_now_add=True, verbose_name='created')),
-                ('modified', django_extensions.db.fields.ModificationDateTimeField(auto_now=True, verbose_name='modified')),
-                ('commit', models.CharField(max_length=255, null=True, verbose_name='Commit')),
-                ('domain', models.CharField(max_length=255, verbose_name='Domain')),
-                ('name', models.CharField(max_length=255, verbose_name='Name')),
-                ('display_name', models.CharField(max_length=255, verbose_name='Display Name')),
-                ('type', models.CharField(max_length=255, verbose_name='Type')),
-                ('doc_name', models.CharField(max_length=255, verbose_name='Doc Name')),
-                ('anchor', models.CharField(max_length=255, verbose_name='Anchor')),
-                ('project', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='sphinx_domains', to='projects.Project')),
-                ('version', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='sphinx_domains', to='builds.Version', verbose_name='Version')),
-            ],
-            options={
-                'ordering': ('-modified', '-created'),
-                'get_latest_by': 'modified',
-                'abstract': False,
-            },
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/0002_increase_max_length.py b/readthedocs/sphinx_domains/migrations/0002_increase_max_length.py
deleted file mode 100644
index 8901f8d3a01..00000000000
--- a/readthedocs/sphinx_domains/migrations/0002_increase_max_length.py
+++ /dev/null
@@ -1,32 +0,0 @@
-# Generated by Django 1.11.20 on 2019-02-27 16:50
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('sphinx_domains', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='sphinxdomain',
-            name='anchor',
-            field=models.CharField(max_length=4092, verbose_name='Anchor'),
-        ),
-        migrations.AlterField(
-            model_name='sphinxdomain',
-            name='display_name',
-            field=models.CharField(max_length=4092, verbose_name='Display Name'),
-        ),
-        migrations.AlterField(
-            model_name='sphinxdomain',
-            name='doc_name',
-            field=models.CharField(max_length=4092, verbose_name='Doc Name'),
-        ),
-        migrations.AlterField(
-            model_name='sphinxdomain',
-            name='name',
-            field=models.CharField(max_length=4092, verbose_name='Name'),
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/0003_additional_indexed_fields.py b/readthedocs/sphinx_domains/migrations/0003_additional_indexed_fields.py
deleted file mode 100644
index dafc3c53c4d..00000000000
--- a/readthedocs/sphinx_domains/migrations/0003_additional_indexed_fields.py
+++ /dev/null
@@ -1,22 +0,0 @@
-# Generated by Django 1.11.20 on 2019-03-01 14:25
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('sphinx_domains', '0002_increase_max_length'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='sphinxdomain',
-            name='doc_display',
-            field=models.CharField(max_length=4092, null=True, verbose_name='Doc Display'),
-        ),
-        migrations.AddField(
-            model_name='sphinxdomain',
-            name='type_display',
-            field=models.CharField(max_length=4092, null=True, verbose_name='Type Display'),
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/0004_add-build-field.py b/readthedocs/sphinx_domains/migrations/0004_add-build-field.py
deleted file mode 100644
index dcb6f47ce6d..00000000000
--- a/readthedocs/sphinx_domains/migrations/0004_add-build-field.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# Generated by Django 1.11.21 on 2019-06-13 18:03
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('sphinx_domains', '0003_additional_indexed_fields'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='sphinxdomain',
-            name='build',
-            field=models.IntegerField(null=True, verbose_name='Build id'),
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/0005_htmlfile-sphinx-domain-integration.py b/readthedocs/sphinx_domains/migrations/0005_htmlfile-sphinx-domain-integration.py
deleted file mode 100644
index 4c1b5d010a9..00000000000
--- a/readthedocs/sphinx_domains/migrations/0005_htmlfile-sphinx-domain-integration.py
+++ /dev/null
@@ -1,19 +0,0 @@
-# Generated by Django 1.11.20 on 2019-06-25 23:18
-import django.db.models.deletion
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('projects', '0043_add-build-field'),
-        ('sphinx_domains', '0004_add-build-field'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='sphinxdomain',
-            name='html_file',
-            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='sphinx_domains', to='projects.HTMLFile'),
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/0006_update_timestamp_fields.py b/readthedocs/sphinx_domains/migrations/0006_update_timestamp_fields.py
deleted file mode 100644
index f7b2193a80b..00000000000
--- a/readthedocs/sphinx_domains/migrations/0006_update_timestamp_fields.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# Generated by Django 2.2.14 on 2020-07-13 20:00
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('sphinx_domains', '0005_htmlfile-sphinx-domain-integration'),
-    ]
-
-    operations = [
-        migrations.AlterModelOptions(
-            name='sphinxdomain',
-            options={'get_latest_by': 'modified'},
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/0007_alter_sphinxdomain_id.py b/readthedocs/sphinx_domains/migrations/0007_alter_sphinxdomain_id.py
deleted file mode 100644
index cf61d3631d3..00000000000
--- a/readthedocs/sphinx_domains/migrations/0007_alter_sphinxdomain_id.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# Generated by Django 3.2.13 on 2022-08-08 20:23
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ("sphinx_domains", "0006_update_timestamp_fields"),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name="sphinxdomain",
-            name="id",
-            field=models.BigAutoField(
-                auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
-            ),
-        ),
-    ]
diff --git a/readthedocs/sphinx_domains/migrations/__init__.py b/readthedocs/sphinx_domains/migrations/__init__.py
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/readthedocs/sphinx_domains/models.py b/readthedocs/sphinx_domains/models.py
deleted file mode 100644
index 5c0d9f36504..00000000000
--- a/readthedocs/sphinx_domains/models.py
+++ /dev/null
@@ -1,106 +0,0 @@
-"""
-Sphinx Domain modeling.
-
-http://www.sphinx-doc.org/en/master/usage/restructuredtext/domains.html
-"""
-
-from django.db import models
-from django.utils.translation import gettext_lazy as _
-
-from django_extensions.db.models import TimeStampedModel
-
-from readthedocs.builds.models import Version
-from readthedocs.core.resolver import resolve
-from readthedocs.projects.models import Project, HTMLFile
-from readthedocs.projects.querysets import RelatedProjectQuerySet
-
-
-class SphinxDomain(TimeStampedModel):
-
-    """
-    Information from a project about it's Sphinx domains.
-
-    This captures data about API objects that exist in that codebase.
-    """
-
-    project = models.ForeignKey(
-        Project,
-        related_name='sphinx_domains',
-        on_delete=models.CASCADE,
-    )
-    version = models.ForeignKey(
-        Version,
-        verbose_name=_('Version'),
-        related_name='sphinx_domains',
-        on_delete=models.CASCADE,
-    )
-    html_file = models.ForeignKey(
-        HTMLFile,
-        related_name='sphinx_domains',
-        null=True,
-        on_delete=models.CASCADE,
-    )
-    commit = models.CharField(_('Commit'), max_length=255, null=True)
-    build = models.IntegerField(_('Build id'), null=True)
-
-    domain = models.CharField(
-        _('Domain'),
-        max_length=255,
-    )
-    name = models.CharField(
-        _('Name'),
-        max_length=4092,
-    )
-    display_name = models.CharField(
-        _('Display Name'),
-        max_length=4092,
-    )
-    type = models.CharField(
-        _('Type'),
-        max_length=255,
-    )
-    type_display = models.CharField(
-        _('Type Display'),
-        max_length=4092,
-        null=True,
-    )
-    doc_name = models.CharField(
-        _('Doc Name'),
-        max_length=4092,
-    )
-    doc_display = models.CharField(
-        _('Doc Display'),
-        max_length=4092,
-        null=True,
-    )
-    anchor = models.CharField(
-        _('Anchor'),
-        max_length=4092,
-    )
-    objects = RelatedProjectQuerySet.as_manager()
-
-    def __str__(self):
-        ret = f'''
-            SphinxDomain [{self.project.slug}:{self.version.slug}]
-            [{self.domain}:{self.type}] {self.name} ->
-            {self.doc_name}
-        '''.strip()
-        if self.anchor:
-            ret += f'#{self.anchor}'
-        return ret
-
-    @property
-    def role_name(self):
-        return f'{self.domain}:{self.type}'
-
-    @property
-    def docs_url(self):
-        path = self.doc_name
-        if self.anchor:
-            path += f'#{self.anchor}'
-        full_url = resolve(
-            project=self.project,
-            version_slug=self.version.slug,
-            filename=path,
-        )
-        return full_url