Move template files into HTML block templates and a theme.json — a migration path that doesn’t break your content. In this themes piece we go past the headline and into what actually matters when you sit down to do the work on a real site.
Why this matters
The WordPress ecosystem moves fast, and it is easy to act on a change before understanding its trade-offs. We tested this on production-scale sites so you do not have to learn the hard way.
Always test major changes on a staging site first. A five-minute clone can save you hours of downtime.
How to get started
Start small and measure. The steps below cover the essentials without turning a quick task into an afternoon.
- Back up the site (files and database) before you change anything.
- Apply the change on staging and confirm nothing regresses.
- Measure the before/after — load time, errors, and Core Web Vitals.
The bottom line
For most sites this is worth doing after a quick staging test. The wins are real, and the risk is manageable when you follow the steps above.
Aria focuses on themes, full-site editing, and design systems for editorial and commerce sites.