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Shopify rebuilds without the downtime

Greatbase6 min read

Shopify rebuilds without the downtime

The risk of a live migration

Shopify stores process orders around the clock. A rebuild that takes the store offline — even for a few hours — has a real cost. We have developed a migration approach that keeps the live store trading while the new one is built.

The parallel build model

We run the new store in parallel on a separate development store. All development and testing happens there. The live store continues trading without modification.

Theme vs headless: the decision framework

For most brands, a well-built Shopify OS2 theme outperforms a headless setup on every metric: cost, speed to market, maintenance burden. Headless makes sense when you need full frontend control, complex integrations, or sub-100ms page loads at scale.

The cutover

We switch DNS in a planned maintenance window — typically 2am local time, with a 15-minute window. Pre-launch testing on the production environment (using a password-protected store) means the risk at cutover is minimal.

Post-launch monitoring

The first 48 hours post-launch are high-attention. We monitor conversion rates, checkout completion, and payment success in real time. Any regression triggers an immediate investigation.

Conclusion

Shopify rebuilds are manageable risk when the process is structured. The parallel build model means the business never stops trading, and the cutover is a well-rehearsed procedure, not a moment of improvisation.

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