Depends on the website. An hour you gonna have to use a template and you’ll need to have your content ready to go.
Then your choices are website builders like Framer, webflow, squarespace etc, or cms with a theme like Wordpress, ghost, whatever. Coding is not happening in an hour, you’ll need that for design and content.
It won’t be super unique but you’ll have something online very quickly.
Note: 15$ might be enough to get you online but you are like to pay more monthly/annually. Cheapest is probably Wordpress on some cheap hosting.
aws amplify free tier, upload a zip with some html. Attaching a domain is the only thing that could take a few minutes.
Check who has the cheapest year 1 domain at domcomp. Use Cloudflare pages for free with Bootstrap or roll your own.
you can publish google doc or notion and point domain on it
p.s. you still will have 45 minutes free and probably 11USD left for coffee
Route 53 + S3 static site?
mmm.page seems like it would help in a pinch
Webflow probably.
Reminds me of a question in Facebook in it's early days:
Urgent PLS HELP I prepared food and it catched fire and now my kitchen is on fire. What to do? Pls help what should I do my kitchen is burning.
Yeah... Enjoy the show, I would say.
You can try to use Google for your question. It seems to be a legit use case for me.
Or, do I misinterpreting your question and you want to learn how to do a landing page for under 15 USD in under 1h?
Just take a free website designer that come along the hosting companies. Or, may be ask YouTube
https://m.youtube.com/watch?v=dVHhIJBAUfM