Cutover is the moment customers notice migration work. With preparation, many sites switch with brief DNS propagation delay rather than hours of hard downtime. The techniques below apply to WordPress, static sites, and custom applications.
Staging that matches production
Test migrations on environments with the same PHP version, database size, and plugin set as production. Surprises during cutover usually mean staging was not representative. Validate integrations — payment gateways, CRM webhooks, email — against real credentials in a controlled window.
DNS and TTL planning
Lower DNS TTLs several days before cutover so changes propagate quickly. Keep the old environment running until you confirm traffic on the new stack. Document every hostname and certificate so nothing is orphaned.
Data sync strategy
For databases that change continuously, plan a final sync window: quiesce writes briefly, copy delta, verify counts, then switch. Static sites simplify this — build artifacts deploy atomically to CDN origins.
Rollback readiness
Rollback is not failure; it is risk management. Maintain the previous environment with a known-good snapshot until stability is proven — often 48–72 hours for critical systems. Clear communication to stakeholders beats silent heroics.
Hosting Llama schedules cutovers with monitoring in place and a documented rollback path. Contact us to review downtime tolerance for your specific environment.