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Shopify headless migration

Shopify → headless, only when the numbers justify it

Migration steps, what breaks, cost/benefit thresholds, before/after Core Web Vitals.

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Pain points

Where you lose money

Headless is sold as a cure-all

Agencies pitch headless as the fix for every speed problem, when often a well-optimised theme would get you there for a fraction of the cost. Teams commit to a rebuild before anyone measured whether the theme was actually the bottleneck.

What breaks is never scoped

App integrations, Shopify's native checkout, subscriptions and loyalty all behave differently once you go headless. The migration quote rarely accounts for rebuilding what those apps did for free.

Maintenance cost gets hidden

Headless trades Shopify's managed simplicity for a codebase you now own and must keep running. Nobody mentions the ongoing developer time until the first framework upgrade lands.

The threshold is never explained

Headless pays off past a certain scale and traffic, but 'when' is left vague, so smaller stores over-invest and larger ones migrate too late.

Channel mix

What we'd run

Measure before migratingfoundation

We baseline current Core Web Vitals and checkout conversion first, so the headless decision rests on data, not on whether the theme could be optimised instead for a fraction of the cost.

Scope what breaksfoundation

We map every app, integration and checkout dependency that changes under headless, and price rebuilding what those apps did for free, before you commit.

Staged rebuildprimary

We migrate in stages with the redirect map in place, so nothing goes dark and SEO holds through the move.

Maintenance plancompounding

We set up the ongoing developer cadence headless demands, so the framework upgrades and dependency updates don't become a surprise cost.

FAQ

Do I actually need to go headless?

Usually not until the theme is the real bottleneck. Headless buys speed and design freedom but adds build and maintenance cost. We decide from your measured Core Web Vitals, not a pitch.

What do I lose going headless?

Some app compatibility and the visual theme editor. We map every app you depend on first and confirm there's a headless-safe path before committing, no surprises mid-build.

Will SEO survive the migration?

Yes if it's planned: preserved URLs, redirects, server-rendered pages and metadata parity. Migrations only tank rankings when redirects and rendering are an afterthought, they aren't here.

Who maintains it after launch?

You own all code and can hand it to any developer. Headless needs a developer to change structure, we document it so you're not locked to us.

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