Subdomain A Record Pointing to Root Domain

[fathuzzaman]

I have two A records, one for my root domain example[dot]com, another is for blog[dot]example[dot]com. However the blog subdomain doesn’t work, and using traceroute and sites like mxtoolbox I found it lead to example[dot].com’s IP.
If I switch from proxied to DNS-only, it pointed to the right IP, and switching it back to proxied returned it to example[dot]com’s IP.

I also tried installing origin certificate as instructed in https://support.cloudflare.com/hc/en-us/articles/115000479507

Did I make some mistake somewhere?

I’ve seen some threads in this forum with similar problem, but most of them ended without successful answer.

[sdayman]

So it’s not working? What’s the full hostname of that subdomain?

[cs-cf]

@fathuzzaman

I have two A records, one for my root domain example[dot]com, another is for blog[dot]example[dot]com. However the blog subdomain doesn’t work, and using traceroute and sites like mxtoolbox I found it lead to example[dot].com’s IP.
If I switch from proxied to DNS-only, it pointed to the right IP, and switching it back to proxied returned it to example[dot]com’s IP.

Cloudflare is a reverse proxy. The IP address of a site when will not correspond to the IP address of the origin. That’s fine/expected?

What error, specifically are you receiving?

[fathuzzaman]

Cloudflare is a reverse proxy. The IP address of a site when will not correspond to the IP address of the origin. That’s fine/expected?

Right, I just realized it’s not pointing to root domain as well, but always to cloudflare’s IP. I have two A record, one pointing to a sample placeholder site on Azure and another to webmail (zoho), so I thought it will just work when I added the third one. I guess I still haven’t fully grasped how Cloudflare works.

So it’s not working? What’s the full hostname of that subdomain?

It’s blog[dot]fathuzzaman[dot]id. Accessing directly via IP address works, but I get Host Error via cloudflare proxied