Node.jsProductionDeploymentSecurity

Node.js Production Checklist

20 essential steps to ensure your Node.js application is production-ready, secure, and reliable.

Published: February 28, 2026

7 min read

Updated: 2026

Deploying a Node.js application to production is more than just uploading your code to a server. It requires careful attention to security, performance, reliability, and monitoring. This comprehensive checklist covers 20 essential steps across six critical categories to ensure your application is production-ready.

Security (4 items)

Install Helmet for HTTP headers

Helmet.js secures your Express/Node.js app by setting HTTP response headers.

javascript

npm install helmet

import helmet from 'helmet';
app.use(helmet());

Implement rate limiting

Protect against brute force and DDoS attacks with express-rate-limit.

javascript

import rateLimit from 'express-rate-limit';

const limiter = rateLimit({
  windowMs: 15 * 60 * 1000, // 15 minutes
  max: 100 // limit each IP to 100 requests per windowMs
});

app.use('/api/', limiter);

Configure CORS properly

Restrict cross-origin requests to prevent unauthorized access.

javascript

import cors from 'cors';

app.use(cors({
  origin: process.env.ALLOWED_ORIGINS?.split(','),
  credentials: true
}));

Validate and sanitize input

Prevent injection attacks with express-validator.

javascript

import { body, validationResult } from 'express-validator';

app.post('/user',
  body('email').isEmail().normalizeEmail(),
  body('password').isLength({ min: 8 }),
  (req, res) => {
    const errors = validationResult(req);
    if (!errors.isEmpty()) return res.status(400).json({ errors });
  }
);

Performance (4 items)

Enable cluster mode

Use all CPU cores with PM2 cluster mode or Node.js cluster module.

bash

pm2 start app.js -i max --name "myapp"

Implement caching strategies

Use Redis for session management, caching, and rate limiting.

javascript

import redis from 'redis';
const client = redis.createClient();

// Cache expensive DB queries
const cachedUser = await client.get(`user:${id}`);
if (!cachedUser) {
  const user = await db.getUser(id);
  await client.setEx(`user:${id}`, 3600, JSON.stringify(user));
}

Enable gzip compression

Reduce response size for faster transmission.

javascript

import compression from 'compression';
app.use(compression());

Optimize database queries

Add indexes, use query optimization, avoid N+1 problems.

javascript

// Bad: N+1 queries
const users = await User.find();
for (let user of users) {
  user.posts = await Post.find({ userId: user.id });
}

// Good: Use .populate() or JOIN
const users = await User.find().populate('posts');

Reliability (4 items)

Use PM2 for process management

Automatically restart crashed processes and manage app lifecycle.

bash

npm install -g pm2
pm2 start app.js --name "myapp"
pm2 startup
pm2 save

Implement health check endpoints

Allow load balancers to verify app is alive and healthy.

javascript

app.get('/health', (req, res) => {
  res.status(200).json({
    status: 'ok',
    uptime: process.uptime(),
    timestamp: new Date().toISOString()
  });
});

Handle graceful shutdown

Close connections cleanly on SIGTERM signals.

javascript

let server = app.listen(3000);

process.on('SIGTERM', () => {
  console.log('SIGTERM signal received: closing server');
  server.close(() => {
    console.log('HTTP server closed');
    process.exit(0);
  });

  // Force exit after 10 seconds
  setTimeout(() => process.exit(1), 10000);
});

Set resource limits

Configure memory and file descriptor limits.

javascript

// PM2 ecosystem.config.js
module.exports = {
  apps: [{
    name: 'app',
    script: './app.js',
    max_memory_restart: '500M',
    node_args: '--max-old-space-size=512'
  }]
};

Logging (2 items)

Use structured logging

Log JSON for easier parsing and analysis with Winston or Pino.

javascript

import winston from 'winston';

const logger = winston.createLogger({
  level: 'info',
  format: winston.format.json(),
  transports: [
    new winston.transports.File({ filename: 'error.log', level: 'error' }),
    new winston.transports.File({ filename: 'combined.log' })
  ]
});

logger.info('User logged in', { userId: 123, timestamp: new Date() });

Configure log rotation

Prevent logs from consuming unlimited disk space.

javascript

import 'winston-daily-rotate-file';

const transport = new winston.transports.DailyRotateFile({
  filename: 'application-%DATE%.log',
  datePattern: 'YYYY-MM-DD',
  maxSize: '20m',
  maxFiles: '14d'
});

logger.add(transport);

Monitoring (3 items)

Monitor uptime

Use Datadog, New Relic, or Prometheus to track application availability.

Track memory and CPU usage

Set alerts for resource thresholds to prevent out-of-memory crashes.

Monitor error rates

Use error tracking (Sentry, Bugsnag) to catch issues in production.

Infrastructure (3 items)

Set up Nginx reverse proxy

Load balance between multiple Node.js instances and handle static files.

nginx

upstream nodejs {
  server 127.0.0.1:3000;
  server 127.0.0.1:3001;
  server 127.0.0.1:3002;
}

server {
  listen 80;
  server_name example.com;

  location / {
    proxy_pass http://nodejs;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
  }
}

Enable SSL/TLS certificates

Use Let's Encrypt for free HTTPS, auto-renew with certbot.

bash

sudo certbot certonly --nginx -d example.com
sudo certbot renew --dry-run  # Test auto-renewal

Configure firewall rules

Use UFW to restrict inbound traffic to necessary ports.

bash

sudo ufw allow 22/tcp     # SSH
sudo ufw allow 80/tcp     # HTTP
sudo ufw allow 443/tcp    # HTTPS
sudo ufw enable

How DeployWise Handles Infrastructure

DeployWise automates the entire infrastructure checklist for you. Our platform automatically configures Nginx reverse proxies, SSL certificates, firewall rules, and monitors all critical metrics. Focus on your application code while we handle production reliability.

Start with DeployWise

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