A Cloud Launch Checklist for Web Applications

1. Separate environments

Keep at least separate development, preview or staging, and production environments, each with its own database and configuration. Preview deployments for every change let you review features on real infrastructure before they reach users.

Make sure preview environments are not indexed by search engines and do not send real emails, payments, or notifications.

2. Manage secrets and configuration properly

API keys, database passwords, and tokens belong in the hosting platform's secret store or a dedicated secrets manager, never in the code repository. Use different credentials for each environment and limit each one to the permissions it needs.

Document every environment variable the application requires, so a new environment can be created without guesswork.

3. Automate deployments and plan rollback

Every release should go through the same automated pipeline: install, lint, test, build, and deploy. Manual deployments are where most launch-day mistakes happen.

Know how to roll back before you need to. Many platforms keep previous deployments available for instant rollback; database changes need their own plan, such as backward-compatible migrations.

4. Set up logging, monitoring, and alerts

You cannot fix what you cannot see. At launch you should have application error tracking, request and server logs that are searchable, uptime checks for key pages and APIs, and alerts that reach a person when something breaks.

• Error tracking for front end and back end, with release versions attached.
• Uptime monitoring for the homepage, sign-in, and core API endpoints.
• Alerts for error spikes, slow responses, and failed background jobs.
• Dashboards for traffic, response times, and resource usage.

5. Back up data and test restores

Enable automatic database backups with a retention period that matches the business need, and store uploaded files in durable storage. Then actually restore a backup to a separate environment. A backup that has never been restored is only a hope.

6. Cover security basics

Serve everything over HTTPS with HSTS, set security headers, validate all input on the server, and protect forms and APIs with rate limiting. Use least-privilege access for team members and services, enable multi-factor authentication on hosting and code accounts, and keep dependencies updated.

7. Check performance and SEO

Test real pages on a mid-range mobile phone and a slow connection. Optimise images, cache static assets, and keep Core Web Vitals in the good range.

For public pages, confirm unique titles and descriptions, canonical URLs, a sitemap submitted to Google Search Console, a robots.txt that allows important pages, and redirects from old URLs to new ones.

8. Assign incident ownership

Decide who is on call during and after launch, how they are alerted, and where incidents are discussed. Write a short runbook for the most likely problems: the site is down, a deployment broke something, a third-party service is failing, or data needs to be restored.

Pre-launch checklist

Tick every item before you announce the launch.

• Separate environments with their own data and configuration
• Secrets stored outside the repository, scoped per environment
• Automated CI/CD pipeline and a tested rollback path
• Error tracking, logs, uptime checks, and alerts
• Automatic backups with a successful test restore
• HTTPS, security headers, input validation, and rate limiting
• Mobile performance, Core Web Vitals, and SEO basics checked
• An on-call owner and a runbook for common incidents