diff --git a/app/config.py b/app/config.py
index 6ad0184..65d44aa 100644
--- a/app/config.py
+++ b/app/config.py
@@ -1 +1,19 @@
-"""Typed settings."""
+from functools import lru_cache
+from typing import Literal
+
+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, ge=0.1, le=30.0)
+    max_redirects: int = Field(default=5, ge=0, le=10)
+    max_monitors: int = Field(default=1000, ge=1, le=100_000)
+    log_level: Literal["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"] = "INFO"
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()