Go to Publish.
Change URL to Use my own domain.
Enter your domain name exactly as you want it to appear in the address bar (either
www.domain.ext). The version you don't use will automatically forward to the other; in other words, using
domain.ext will automatically redirect
www.domain.ext to it (and vice versa).
Scroll down a bit to locate your host records. These will "point" your domain to your Carrd site and usually need to be set up over at your domain registrar. For most domains, you'll be asked to add the following records:
@to the target IP address given below (eg.
wwwback to your bare domain (eg.
Not sure how to do this? Select your domain registrar for provider-specific instructions:
Back at Carrd, click Publish Changes.
You're done ... almost. Wait a little while and try visiting your site. If all went according to plan, you should now be able to access it using your custom domain (and do so via SSL, courtesy of Let's Encrypt).