Zero-downtime deployment
A deployment strategy that brings new software versions into production without any user interruption. Realized through blue-green, canary or rolling deployment patterns combined with health checks.
ZDD
A deployment strategy that brings new software versions into production without any user interruption. Realized through blue-green, canary or rolling deployment patterns combined with health checks.
Derivatives & related terms
- Blue-green deployment
- Canary Release
- Rolling Deployment
- Feature Flags
- CI/CD pipeline
- GitHub Actions
- rollback strategy
- Immutable Deployments
- Atomic Deploy
- Shadow Traffic
SEO tip
Googlebot can crawl your site at any time. A 503 error during deployment instead of zero downtime signals unavailability and may result in the removal of affected URLs from the index.
Source: Georgia Business & Technology Glossary by Del-Ops Technology & Consulting Team. Last Updated: February 2026.