Add DNS record to forward test.domain.com to ip:port/folder/ ?

Suppose I have an URL which is like this: ip:port/folder/ and have a domain like this: domain.com
How can I create a DNS record which makes test.domain.com forward to ip:port/folder ?
Note that I only have access to the DNS records (Cloudflare). CNAME isn't an option since doesn't allow ports.