diff --git a/app/config.py b/app/config.py
index 6ad0184..9fb28df 100644
--- a/app/config.py
+++ b/app/config.py
@@ -1 +1,19 @@
-"""Typed settings."""
+from functools import lru_cache
+
+from pydantic import Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_prefix="MONITOR_", extra="ignore")
+
+    host: str = "0.0.0.0"
+    port: int = Field(default=8000, ge=1, le=65535)
+    log_level: str = "INFO"
+    check_timeout_seconds: float = Field(default=5.0, gt=0, le=30)
+    max_redirects: int = Field(default=3, ge=0, le=10)
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()