---
title: "Page Not Found"
url: "https://develop.sentry.dev/self-hosted/optional-features/err"
---

# Page Not Found

The page `/self-hosted/optional-features/err` does not exist.

## Pages in Self-Hosted Optional Features

- [Self-Hosted Errors-Only](https://develop.sentry.dev/self-hosted/optional-features/errors-only.md)
- [Self-Hosted Content Security Policy (CSP)](https://develop.sentry.dev/self-hosted/optional-features/csp.md)

## Find what you need

- [Site index](https://develop.sentry.dev/llms.txt) — LLM-optimized page listing
- [Documentation root](https://develop.sentry.dev/index.md) — full docs overview
- [Platforms](https://develop.sentry.dev/platforms.md) — all SDK platforms