diff --git a/app/config.py b/app/config.py
index 6ad0184..fa82d71 100644
--- a/app/config.py
+++ b/app/config.py
@@ -1 +1,18 @@
-"""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")
+
+    request_timeout_seconds: float = Field(default=5.0, gt=0, le=30)
+    max_redirects: int = Field(default=5, ge=0, le=10)
+    max_monitors: int = Field(default=1000, gt=0, le=100_000)
+    log_level: str = Field(default="INFO", pattern="^(DEBUG|INFO|WARNING|ERROR|CRITICAL)$")
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()