my domain has .html and for reasons of being 8 years old I want to keep .html. Is it possible to place the html in the webflow urls without having to export?
I don’t believe you have any granular control over how domains are shown when using Webflow hosting so you’d probably need to host externally if it’s something you want to keep.
That said, I’d strongly recommend you consider ripping off that Band-Aid at some point. As with any change to your domain you’d probably see a temporary drop in terms of SEO, but it’s a fairly old-school way of doing things and I don’t see them “coming back”.
Your redirected pages will work as soon as you set them up. When Google crawls the site it will see the 301’s and start updating the index shortly afterward. How fast depends on the crawl rate of your site. Google has a section of Search Central about this very subject (301 redirects).