Skip to main content
Publishing gives your project a public address such as your-name.r21.dev. Anyone with the link can open the site without a Mythos account. Your workspace Preview and your published site are separate. You can keep editing privately while the current public version stays unchanged. The live site updates only when you choose Update.
A published site is public and does not include password protection. Remove private information and review the security status before sharing the link.

​
Before you publish

Make sure the latest Preview is the version you want visitors to see. Check the main pages on desktop and mobile, test important links and forms, and confirm that any connected service uses the intended project. For search details and an icon, open More → SEO & AI search before publishing. You can also connect a domain you own from More → Domains. Publishing and updating a site do not spend credits.

​
Publish the first version

1

Open Publish

Select Publish in the top-right of the workspace Preview. The panel shows the site address, public access, and security status.
2

Choose the address

Select the pencil beside Website URL to edit the *.r21.dev name. Save a name when Mythos shows that it is available.
3

Review public access

Confirm that anyone with the URL may view the site. If the security review reports an issue, return to the project and remove the exposed value before publishing.
4

Select Publish

Mythos puts the version you reviewed online. When the panel shows Your site is live, select Visit site or copy the URL.
Visitor analytics begins on the live site when Visitor analytics is enabled. It is on by default and can be changed under More → Project settings → Publishing. Preview traffic is not counted.

​
Update a live site

Editing in chat or the code editor does not immediately change the public site. Review the new Preview, open Publish, and select Update when it is ready. The previous version remains live while Mythos prepares the update. If the update fails, visitors keep seeing that previous version. Resolve the message shown in the panel, confirm Preview is ready, and try Update again.
This separation lets you continue working without showing unfinished changes to visitors.

​
Change the address or use your own domain

You can edit the Mythos subdomain after publishing. The new address replaces the old one, so update bookmarks and links you have already shared. To use an address such as www.yourbrand.com, connect a domain you already own. See Custom domains.

​
Unpublish

Open the Publish menu, choose Unpublish, and confirm the action. The public URL stops serving the site, but your Mythos project and Preview remain available. You can publish it again later.

​
Good to know

  • Each project has one current public version.
  • Publishing supports the frontend projects created by Mythos. Data and accounts can come from a connected Supabase project.
  • A custom domain serves the same published project as its Mythos URL.
  • Search engines and social platforms may keep older titles or previews in their own caches after a change.

​
Troubleshooting

Open Publish and select Update. Saving or building a new version does not update the public site automatically.
Read the message in the Publish panel, confirm the latest Preview is ready, and try again. If the project was already live, the previous version stays available.
Choose Unpublish immediately. Remove the private content, review the project, and publish again only when it is safe to share.