diff --git a/.strict-typing b/.strict-typing
index 3d777a11acf..e1c0d905621 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -24,6 +24,7 @@ homeassistant.components.canary.*
 homeassistant.components.cover.*
 homeassistant.components.device_automation.*
 homeassistant.components.device_tracker.*
+homeassistant.components.dnsip.*
 homeassistant.components.dunehd.*
 homeassistant.components.elgato.*
 homeassistant.components.fitbit.*
diff --git a/homeassistant/components/dnsip/sensor.py b/homeassistant/components/dnsip/sensor.py
index 01d6e2f4f2a..2fb0e30da90 100644
--- a/homeassistant/components/dnsip/sensor.py
+++ b/homeassistant/components/dnsip/sensor.py
@@ -1,4 +1,6 @@
 """Get your own public IP address or that of any host."""
+from __future__ import annotations
+
 from datetime import timedelta
 import logging
 
@@ -8,7 +10,10 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
 from homeassistant.const import CONF_NAME
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -36,57 +41,44 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-async def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
+async def async_setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    async_add_devices: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the DNS IP sensor."""
     hostname = config[CONF_HOSTNAME]
     name = config.get(CONF_NAME)
-    if not name:
-        if hostname == DEFAULT_HOSTNAME:
-            name = DEFAULT_NAME
-        else:
-            name = hostname
     ipv6 = config[CONF_IPV6]
-    if ipv6:
-        resolver = config[CONF_RESOLVER_IPV6]
-    else:
-        resolver = config[CONF_RESOLVER]
 
-    async_add_devices([WanIpSensor(hass, name, hostname, resolver, ipv6)], True)
+    if not name:
+        name = DEFAULT_NAME if hostname == DEFAULT_HOSTNAME else hostname
+    resolver = config[CONF_RESOLVER_IPV6] if ipv6 else config[CONF_RESOLVER]
+
+    async_add_devices([WanIpSensor(name, hostname, resolver, ipv6)], True)
 
 
 class WanIpSensor(SensorEntity):
     """Implementation of a DNS IP sensor."""
 
-    def __init__(self, hass, name, hostname, resolver, ipv6):
+    def __init__(self, name: str, hostname: str, resolver: str, ipv6: bool) -> None:
         """Initialize the DNS IP sensor."""
-
-        self.hass = hass
-        self._name = name
+        self._attr_name = name
         self.hostname = hostname
         self.resolver = aiodns.DNSResolver()
         self.resolver.nameservers = [resolver]
         self.querytype = "AAAA" if ipv6 else "A"
-        self._state = None
 
-    @property
-    def name(self):
-        """Return the name of the sensor."""
-        return self._name
-
-    @property
-    def state(self):
-        """Return the current DNS IP address for hostname."""
-        return self._state
-
-    async def async_update(self):
+    async def async_update(self) -> None:
         """Get the current DNS IP address for hostname."""
-
         try:
             response = await self.resolver.query(self.hostname, self.querytype)
         except DNSError as err:
             _LOGGER.warning("Exception while resolving host: %s", err)
             response = None
+
         if response:
-            self._state = response[0].host
+            self._attr_state = response[0].host
         else:
-            self._state = None
+            self._attr_state = None
diff --git a/mypy.ini b/mypy.ini
index 231f7f40384..8de49a59259 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -275,6 +275,17 @@ no_implicit_optional = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.dnsip.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+no_implicit_optional = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.dunehd.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true