Redirect subdomain to a third-party website

[DavidSalomonDev]

Hi, I have both domains: david-salomon.com and davidsalomon.dev and I have a blog on Hashnode with blog.davidsalomon.dev and I want to make blog.david-salomon.com redirect to my Hashnode blog.

However, I've tried several solutions and I can't make blog.david-salomon.com redirecting to blog.davidsalomon.dev here's what I've tried.

1. Creating an alias in david-salomon.com in DNS UI
   For some reason it doesn't work

2. Create a vercel.json with the value

"redirects": [
      { "source": "blog.david-salomon.com", "destination": "https://blog.davidsalomon.dev" }
    ]

3. Create a redirection from the 'Redirect' menu as per https://vercel.com/changelog/domains-can-now-be-redirected-with-a-custom-status-code
   The 'Edit' option or the 'Domains' option are not available
   

Any help will be appreciated.

[fu-sen]

This is probably what you're expecting in vercel.json:

{
  "redirects": [
   { "source": "/(.*)", "destination": "https://blog.davidsalomon.dev/$1", "permanent": true }
  ]
}

When using redirects, ▲Vercel does not provide 301. You can use 308 instead.

The lack of the Domains option is another issue.
You are looking at your account page. Not there: https://vercel.com/account

Did you assign the domain to the project?
If you're doing git push or vercel --prod, you should have created that project.
see the project page. There is View Domains there: https://vercel.com/dashboard/projects

[fu-sen]

Note: I'm using Windows, so it's nslookup:

PS C:\Users\balloon> nslookup david-salomon.com
Non authoritative answer:
Name:    david-salomon.com
Address:  76.76.21.21

PS C:\Users\balloon> nslookup blog.david-salomon.com
Non authoritative answer:
Name:    cname.vercel-dns.com
Address:  76.76.21.21
Aliases:  blog.david-salomon.com

PS C:\Users\balloon> ▄

These are correctly directed to ▲Vercel. The name server has a cache, so you had to wait for the server reference to change.

[brianshano]

Did you solve this?
I was trying to do similar but from the vercel configuration level.
Following this https://vercel.com/support/articles/pointing-subdomains-to-external-services

When I add the subdomain with the CNAME value to redirect to, I get this error message:
"Your Domain isn't using Vercel nameservers. In order for the changes to your DNS Records to get applied, however, it needs to. Learn More"

[fu-sen]

This problem occurs not only in Vercel but also in the name server settings of the domain.
The name server has a cache called TTL. Therefore, please note that even if you set it, it will not refer to the new server immediately.
After changing the server, it may take hours to days for it to take effect.
Make sure the domain you set refers to the name server, as shown above. for example:
https://toolbox.googleapps.com/apps/dig/