Is it possible to create a subdomain without a hosting subscription?

How do you do it?

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No it is not possible

Yes, it is possible to create a subdomain without a hosting subscription, but with some limitations depending on your setup:

Domain Registrar Support:
If your domain registrar (e.g., GoDaddy, Namecheap) provides DNS management services, you can create subdomains without a hosting subscription. Many registrars allow you to add DNS records, such as A, CNAME, or others, for your domain. This means you can create a subdomain and point it to an IP address or another domain without a hosting plan.

Directly at the registrar of the domain via DNS Managment

Use cloudflare for DNS management easy and free

Thanks a lot good people I have found how to use Cloudflare

At any DNS provider:
- your domain registrar
- you hosting provider
- third-party service like CloudFlare

Yes, it is possible to create it through your DNS without a hosting provider.
Add a new DNS record in your DNS management panel
- Use A Record If you want your subdomain to point to an IP address, create an A record. Enter the subdomain name (e.g., `subdomain.yoursite.com`) and the IP address you want it to point to.
- Use CNAME Record If you want your subdomain to point to another domain name, create a CNAME record. Enter the subdomain name and the domain name you want it to point to (e.g., `subdomain.yoursite.com` pointing to `yoursite.com`).
Although, you need a hosting provider to show the website.