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Shopify Speed and Migration Guides

Shopify handles the parts of commerce that are genuinely hard to build: checkout, payments, fraud, tax, compliance. The guides here are about the layer above that, which is where most store performance problems actually live.

Two costs dominate this cluster. The first is the app stack, where a store accumulates a dozen subscriptions that each inject scripts into every page, and the monthly total is rarely written down anywhere. The second is the theme, where a design built for a demo catalogue meets a real one and starts losing to its own image handling. Both are measurable before anything is rebuilt, and several of these posts are about how to measure them properly rather than by feel.

Headless comes up constantly and deserves a straight answer: it is a real option, it is not a default, and it moves work rather than removing it. A decoupled storefront gives you control over rendering and payload, and in exchange you own more of the frontend than a theme ever asked you to. That trade is worth making for some catalogues and not for others.

For a store where the diagnosis is already done and the question is what a rebuild involves, our commerce engineering service covers the scope and the handover terms.

PandaCodeGen builds from $1,500 at a fixed price agreed before work starts, has no minimum project size, and the source code, design files and production accounts are yours at the end.

Topic introduction written by Hassan Jamal, Lead Engineer, from the scoping and handover work behind these guides. How claims here are sourced, dated and corrected is set out in our editorial policy.

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Past the reading stage?

These guides describe the decision. If you have made it and want the work scoped against your own site, the commercial terms, acceptance criteria, and exclusions are on one page.

See the commerce engineering service