---
title: "Deploy Changedetection"
description: "Monitor and detect website changes with alerts."
category: "Other"
url: https://railway.com/deploy/changedetection
---

# Deploy Changedetection

Monitor and detect website changes with alerts.

**[Deploy Changedetection on Railway](https://railway.com/template/changedetection)**

- **Creator:** Protemplate
- **Category:** Other
- **Total deploys:** 14

## Template content

### ChangeDetection https://somi-public-assets.s3.ap-southeast-1.amazonaws.com/railway/changedetection-logo.svg

- **Image:** dgtlmoon/changedetection.io:latest
- **Health check:** /worker-health
- **Public domain:** Yes

### SockpuppetBrowser https://somi-public-assets.s3.ap-southeast-1.amazonaws.com/railway/chromium-logo.png

- **Image:** dgtlmoon/sockpuppetbrowser:latest

## Documentation

# Deploy and Host Changedetection.io on Railway

Changedetection.io is a self-hosted website change detection and notification service. It monitors web pages for content changes—tracking price drops, restocks, content updates, and API modifications—then sends instant alerts via Discord, Slack, Email, Telegram, or webhooks.

## About Hosting Changedetection.io

Hosting Changedetection.io requires a containerized deployment with persistent storage for watch configurations and notification history. The application runs as a Python-based web service on port 8080, storing all data in a `/datastore` directory. For JavaScript-heavy websites, this template includes SockpuppetBrowser for full page rendering via private networking. Railway's single-volume architecture works well here since all application data consolidates under one mount point.

![Changedetection.io Homepage](https://zyugzloemocjcxmspsso.supabase.co/storage/v1/object/public/static-assets/changedetection-homepage.png)

![Changedetection.io Configuration](https://zyugzloemocjcxmspsso.supabase.co/storage/v1/object/public/static-assets/changedetection-config.png)

![Changedetection.io Diff View](https://zyugzloemocjcxmspsso.supabase.co/storage/v1/object/public/static-assets/changedetection-diff.png)

![Changedetection.io Screenshot](https://zyugzloemocjcxmspsso.supabase.co/storage/v1/object/public/static-assets/changedetection-screenshot.png)

## Common Use Cases

- **Price monitoring and deal alerts** - Track e-commerce products for price drops, restocks, or availability changes
- **Content change detection** - Monitor news sites, documentation, competitor pages, or regulatory updates for modifications
- **API and JSON monitoring** - Watch REST APIs or JSON endpoints using JSONPath/jq filters for data changes
- **Compliance and legal tracking** - Monitor terms of service, privacy policies, or legal documents for updates

## Dependencies for Changedetection.io Hosting

- **Persistent volume** - Required for `/datastore` to preserve watches, configurations, and notification history
- **SockpuppetBrowser service** - Included for JavaScript rendering on dynamic websites via private networking

### Deployment Dependencies

- [Changedetection.io GitHub Repository](https://github.com/dgtlmoon/changedetection.io)
- [Official Docker Image](https://hub.docker.com/r/dgtlmoon/changedetection.io)
- [SockpuppetBrowser Docker Image](https://hub.docker.com/r/dgtlmoon/sockpuppetbrowser)
- [Changedetection.io Documentation](https://changedetection.io/docs)

### Implementation Details

**Template Architecture:**
- **ChangeDetection** - Main application service with public networking and volume (`dgtlmoon/changedetection.io:latest`)
- **SockpuppetBrowser** - Browser rendering service for JavaScript sites (`dgtlmoon/sockpuppetbrowser:latest`, private networking only)

Key environment variables for Railway deployment:

| Variable | Description | Default |
|----------|-------------|---------|
| `TZ` | Timezone for scheduled checks | UTC |
| `HIDE_REFERER` | Hide referer header when fetching pages | true |
| `LOGGER_LEVEL` | Application log level | INFO |
| `FETCH_WORKERS` | Number of parallel fetch workers | 10 |
| `PLAYWRIGHT_DRIVER_URL` | SockpuppetBrowser endpoint via private network | (configured) |

SockpuppetBrowser connection via Railway private networking:
```
PLAYWRIGHT_DRIVER_URL=ws://${{SockpuppetBrowser.RAILWAY_PRIVATE_DOMAIN}}:3000
```

## Why Deploy Changedetection.io on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying Changedetection.io on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.


## Similar templates

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- [Foundry Virtual Tabletop](https://railway.com/deploy/X5tR6G) — A Self-Hosted & Modern Roleplaying Platform
- [Letta Code Remote](https://railway.com/deploy/letta-code-remote) — Run a Letta Code agent 24/7. No inbound ports, just deploy.

Open this page in a browser: https://railway.com/deploy/changedetection