Hello, i have a temporary working JIMDO website domain (a European small business hosting service), and it works when i created the DNS CNAME record on Squarespace, where i host my main domain (email, etc) and pointed a subdomain blog to the Jimdo working site -- photos-3.jimdosite.com

My CNAM record looks correct (its 4 Hour TTL, defaults) and points blog (domain.com) to this photos-3.jimdosite.com. I can reach photos-3.jimdosite.com directly , that works and its published. I can see the change now with nslookup too. However when i try to access blog.domain.com i get the following Cloudflare error. I raised a Service Case number also with JIMDO. What could be the reason here for the Cloudflare error and how do we address it?

Error 1001

 Ray ID: a123966f6cc3f443 • 2026-06-27 09:57:27 UTC

DNS resolution error

What happened?

You've requested a page on a website

Cloudflare is currently unable to resolve your requested domain 

• Most likely: if the owner just signed up for Cloudflare it can take a few minutes for the website's information to be distributed to our global network.
• Less likely: something is wrong with this site's configuration. Usually this happens when accounts have been signed up with a partner organization (e.g., a hosting provider) and the provider's DNS fails.

Please see https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/error-1001/ for more details.