We currently don't support hosting external websites on Strikingly. Since Strikingly's code is unique from other website-building platforms. The way our templates/sites are coded makes them incompatible with other platforms.
Don't worry, you can always build your website with us! And, If you have a domain outside Strikingly, you have the option to connect it to your Strikingly website.
If you need help recreating your site, feel free to check our Kickstart program, and shoot us a line at support@strikingly.com for any questions.