Automated website uptime monitor with email alerts & GitHub status page update

🖥️ Automated Website Uptime Monitor with Email Alerts & GitHub Status Page Update

This n8n workflow continuously monitors your website’s availability, sends email alerts when the server goes down, and automatically updates a status page (index.html) in your GitHub repository to reflect the live status.

📌 Good to Know

• The workflow checks your website every 2 minutes (interval configurable).
• If the website is down (503, bad response, or error) → it sends an email alert and updates the GitHub-hosted status page to show Down.
• If the website is up (200) → it updates the GitHub-hosted status page to show Up.
• The email notification includes an HTML-formatted alert page.
• You can use GitHub Pages to host the status page publicly.

ℹ️ What is GitHub Pages?

• GitHub Pages is a free hosting service provided by GitHub that lets you publish static websites (HTML, CSS, JS) directly from a GitHub repository.
• You can use it to make your index.html status page publicly accessible with a URL like:

⚡ How to Set Up GitHub Pages for Your Status Page

1. Create a new repository on GitHub (recommended name: status).
2. Add a blank index.html file (n8n workflow will later update this file).
3. Go to your repository → Settings → Pages.
4. Under Source, select the branch (main or master) and folder (/root).
5. Save changes.
6. Your status page will now be live at: https://<USERNAME>.github.io/status

✅ Prerequisites

• An n8n instance (self-hosted or cloud).
• A GitHub account & repository (to host the status page).
• A Gmail account (or any email service supported by n8n – example uses Gmail).
• Access to the target website URL you want to monitor.

⚙️ How it Works

1. Schedule Trigger → Runs every 2 minutes.
2. HTTP Request → Pings your website URL.
3. Switch Node → Evaluates the response status (200 OK vs error/503).
4. Code Node → Generates a dynamic HTML status page (Up/Down).
5. GitHub Repo & File → Github Repo Name Should be https://github.com/<OWNER_NAME>/status (recommended) & Must have(required) a blank file named as index.html before triggering this flow.
6. GitHub Node → Updates/commits the index.html file in your repository.
7. Gmail Node → Sends an email alert if the site is down.

🚀 How to Use

1. Import the workflow JSON into your n8n instance.
2. Configure credentials for:
   • GitHub (Personal Access Token with repo permissions).
   • Gmail (or your preferred email service).
3. Replace the following:
   • https://app.yourdomain.com/health → with your own website URL.
   • [email protected] → with your email address (or distribution list).
   • GitHub repo details → with your repository where index.html will live.
4. Deploy the workflow.
5. (Optional) Enable GitHub Pages on your repo to serve index.html as a live status page.

🛠 Requirements

• n8n v1.0+
• GitHub personal access token
• Gmail API credentials (or SMTP/email service of your choice)

🎨 Customising this Workflow

• Interval → Change schedule from 2 minutes to any desired frequency.
• Email Content → Modify HTML alert template in the Gmail node.
• Status Page Styling → Edit the HTML/CSS in the Code node to match your branding.
• Error Handling → Extend Switch node for other status codes (e.g., 404, 500).
• Multiple Websites → Duplicate HTTP Request + Switch nodes for multiple URLs.

👤 Who Can Use It?

• DevOps & SRE Engineers → For automated uptime monitoring.
• Freelancers/Developers → To monitor client websites.
• Startups & SMEs → For a free, lightweight status page without paid tools.
• Educators/Students → As a hands-on learning project with n8n.

🌟 Key Features

• 🔄 Automated uptime checks (configurable interval).
• 📧 Email notifications on downtime.
• 📝 Dynamic HTML status page generation.
• 🌍 GitHub Pages integration for public visibility.
• ⚡ Lightweight & cost-effective (no paid monitoring tool needed).

🔗 Tools Integration

• n8n – Orchestration & automation.
• GitHub – Version control + hosting of status page.
• Gmail – Email notifications.
• HTTP Request – Website availability check.

📈 Example Use Cases

• Personal website monitoring with public status page.
• Monitoring SaaS apps & notifying support teams.
• Internal company services uptime dashboard.