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
Create a new repository on GitHub (recommended name: status).
Add a blank index.html file (n8n workflow will later update this file).
Go to your repository → Settings → Pages.
Under Source, select the branch (main or master) and folder (/root).
Save changes.
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
Schedule Trigger → Runs every 2 minutes.
HTTP Request → Pings your website URL.
Switch Node → Evaluates the response status (200 OK vs error/503).
Code Node → Generates a dynamic HTML status page (Up/Down). 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. GitHub Node → Updates/commits the index.html file in your repository.
Gmail Node → Sends an email alert if the site is down.

🚀 How to Use
Import the workflow JSON into your n8n instance.
Configure credentials for:
GitHub (Personal Access Token with repo permissions).
Gmail (or your preferred email service).
Replace the following:
https://app.yourdomain.com/health → with your own website URL.
example@gmail.com → with your email address (or distribution list).
GitHub repo details → with your repository where index.html will live.
Deploy the workflow.
(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.