What do I need before I can launch? A checklist

Launching is exciting, and excitement makes people skip the boring checks that prevent the embarrassing problems. This is the short, honest list of what genuinely needs to be true before you tell the world your thing is open. Work through it once and you launch with confidence rather than crossed fingers.

Step by step

1. The foundations: domain, host, deployConfirm you own your domain in your own account, that your site is deployed to a real host, and that visiting your domain loads the site. This is the baseline of being live at all. If any of these is missing, you are not ready to launch, you are ready to finish setting up. Check them first because everything else assumes they are done.
2. The padlock and the settingsConfirm HTTPS is active, so your address shows a padlock and no "not secure" warning. Then confirm every secret setting your app needs is configured on the live host, not just in your preview, because a missing one breaks the live app quietly. Load the live site and actually use it: a green deploy is not proof it works, using it is.
3. If you collect any data, do the data basicsIf your site takes names, emails, messages or payments, you need a privacy policy explaining what you collect and why, and your database must be locked down so strangers cannot read it. Check that no secret keys are visible in your code or pages. In Australia, collecting personal information carries real obligations, so this is not optional politeness, it is the baseline for handling other people's data.
4. Test like a strangerGo through the whole thing as a first-time visitor on the live site: every page loads, every link works, every form submits and actually reaches you, and any payment completes with a test transaction. Do it on your phone as well as your computer, on mobile data not just wifi. Most launch-day embarrassments are a broken form or a dead link that two minutes of testing would have caught.
5. Have a way back and a way to be reachedMake sure you can undo a bad change: know how to roll back to a working version, and keep a backup of anything you cannot afford to lose. Confirm there is a clear way for visitors to contact you, and that those messages actually arrive. Then launch. If working through this list surfaced things you are not sure about, especially around data and security, that uncertainty is a good reason to get a second opinion before real customers arrive.