How do I verify if my CNAME is correctly added?

Firstly, add a CNAME in your DNS settings as explained in the article here: https://www.qrcodechimp.com/create-cname-record/

Now, to check whether the CNAME was added correctly or not, follow the below-mentioned steps w.r.t. your OS:

OS: Windows

1- Press the WINDOWS key.

2- Type cmd in the search bar and press Enter key to open the command prompt.

3- Type ping<space>YOUR-SUBDOMAIN-NAME  (e.g., ping qr.yourcompany.com) and press enter key. Wait to see the ping statistics.

4- Now type ping<space>cname.qrcodechimp.com and press enter key.

5- If the CNAME is properly set, the IP address of both commands should match.

See the below image for reference:

OS: Mac

1- Press Command + Space Bar on your Mac keyboard.

2- Type Terminal in the search bar and press Enter key to open the command prompt.

3- Type ping<space>YOUR-SUBDOMAIN-NAME  (e.g., ping qrcodechimp.neurotags.in) and press enter key. Wait to see the ping statistics.

4- Now type ping<space>cname.qrcodechimp.com and press enter key.

5- If the CNAME is properly set, the IP address of both commands should match.

Please take a look at the above image for reference.