The preview
The preview is not a picture. It is your app, running, at an address only you have.
It is the real thing
Buttons work. Forms save. The data you enter is really stored and comes back when you reload.
So test it the way a customer would. Fill the booking form. Put something in the cart. That is the only way to find what is missing.
While it builds
You see the file being written and the work ticking off as it finishes. It is there so you know it is alive, not so you have to read it.
Nothing is lost if you close the window. Come back later and it has carried on without you.
How long it takes
We built seven real businesses end to end and timed every one. The fastest was 221 seconds, the slowest 616, and the average was 370.
Bigger asks take longer. A site with more pages and more data takes more time than a single landing page.
One job at a time
One job runs at a time. Ask for a second while the first is going and it lines up behind it rather than being turned away.
The tray at the top shows what is running and what is waiting, so a queued job never looks like a button that did nothing.
The address does not change
Every change rebuilds the preview, but the address stays the same one it started with.
So you hand it to someone once. When they reload, they get the newest version without you sending anything again.
Open it on your phone
The preview address works anywhere, so open it on your own phone before anyone else sees it.
Most of what people notice on a small screen — text too small, something running off the side — you will spot in ten seconds there.
Preview is not published
The preview address is for you and the people you hand it to. It is not the address you give customers.
For that, publish. Publishing runs the checks and gives you an address meant to be shared.