Creating a 2nd Subdomain

[user17356]

Hi. My domain is in GoDaddy and is pointing to Cloudflare. I already have a subdomain and I’d like to add a 2nd subdomain. Can I do it directly in Cloudflare? How? Thanks.

[fritex]

@user17356

I already have a subdomain and I’d like to add a 2nd subdomain

May I ask if you have got subA.domain.com and want subB.domain.com?
Or rather have sub.domain.com and want sub.sub.domain.com?

Nevertheless, you have to create the desired “sub” or “sub-sub” domain at your Web hosting interface.

Therefore, you have to add an A type DNS like A sub record pointed to your web hosting IP address to the DNS tab of Cloudflare dashboard for your domain name.

Below I am sharing helpful articles which include instructions how to preoperly manage DNS records at Cloudflare:

Adding DNS Records

This tutorial covers adding general DNS records and specifically A, AAAA, CNAME, MX and TXT records. Go to the DNS app of your Cloudflare dashboard. Enter your credentials and click ‘Log In’ Click the domain in question Click [image] [Please note, the content of the records below are solely for example purposes and should be replaced by valid records with content provided by your web host] Please select which record you need help adding:

A Record

<a class="lightbox" href=&quot…

Editing DNS Records

This tutorial covers editing DNS records. Go to the DNS app of your Cloudflare dashboard. Enter your credentials and click ‘Log In’ Click the domain in question On this page, you will see a list of the DNS records for your domain. This page is where you edit them. You will see the list of records like this: [DNS Page] You can click the edit button to the right of any record to change it, then click ‘save’ when you’re done. There is also a tutorial on Adding DNS Records Tutorial Refer…

Kindly, consider having a valid SSL certificate for your sub(sub)-domain installed at your origin host/server first.

If using “sub-sub” like 4th level sub-domain, please read below article as you might have an issue:

Subdomain too deep

This tutorial covers a possible reason for the SSL_ERROR_NO_CYPHER_OVERLAP and ERR_SSL_VERSION_OR_CIPHER_MISMATCH errors (Firefox and Chrome respectively) when seen on a subdomain. The Cloudflare universal certificates cover example.com and *.example.com. This means that it covers any subdomain one level below the domain you signed up with. It will cover www.example.com and subdomain.example.com, as these are one level below the root domain, example.com. The certificate will not cover www.sub…

[user17356]

Thank you. Yes, I would like to add sub b.domain.com. Also, will I have to add any page rules? Thanks

[fritex]

I do not know if you are using cPanel, Plesk, or not at all, but you would have to add the needed on the origin host/server first, like the vhost file configuration for subB-domain, etc.

Therefore, add a DNS record A subB pointed to your hosting/server IP address at the DNS tab of your domain name at Cloudflare dashboard in your Cloudflare account.

@user17356

will I have to add any page rules

I believe it depends on what you will need for “to-do” later with it.

[user17356]

So I would need to add really two A records how it is shown in these instructions (see attached) in Cloudflare

[fritex]

For a sub-domain, at the DNS tab of Cloudflare dashboard, you may need only one A type, name “mysub”, value “IP address of your hosting” and TTL “automatic/default”, proxy .

From your above screenshot the @ symbol is the A type mydomain.com (at my screenshot below).

Also from your above screenshot, the “myexample” is the sub-domain (at my screenshot below it’s “mysub”).

Example:

[user17356]

Right, I am trying then to use it to host my online course. The platform gave me these instructions. Meaning, I will be creating a subdomain app.mydomain.com and it will be used to host my course which truly is located at Gurucan.com. Currently the location is mtt.gurucan.com, but I am trying to “replace it” with the my subdomain that I am discussing here which will be app.mydomain.com. Gurucan gave me instuctions I posted above. Seems like the IP of 34.235.6.209 is their IP that they want me to point things to. So the question is if I’d need both of those A values or just the bottom one? Thanks.

[fritex]

Hm, okay.
That is a new information.
If that is the case, you might want to use a CNAME setup for your sub-domain, and not A type.

Which might go:
CNAME app and the target should be “mtt.gurucan.com” and proxy set to (DNS-only)

Did they gave you the below article for instructions? - they use example of a domain on GoDaddy:

How to connect your domain?

[user17356]

Yes, here is the article below. In their tech interface seems like I just have to enter my subdomain like app.mydomain.com once the subdomain is created in the DNS settings:
How to connect your domain? | Gurucan.Com Help Center