Is a wildcard CNAME possible?

Is it possible to create a wildcard CNAME somehow?

I'm trying to setup

*.lms.currics.com -> currics.talentlms.com

But that's not valid according to squarespace even though it should be.
Any way around this without creating bunches of specific CNAMES for customers?

If you are talking about URL redirects, this isn't a valid format within Squarespace. You must specify each one, page by page. 

If you're referring to DNS, that's a question for your DNS provider. If your domain is registered with Squarespace, you can get assistance with this by contacting Squarespace Customer Care. You can reach out to them here.
 

Nope it's a DNS question.

Stuff that happens before a request hits squarespace (or some other place as in my case).

Any updates about this?

1 hour ago, gmoreli said:

Any updates about this?

If it's a question about Squarespace domains, you can get assistance from Squarespace Customer Care.

You can reach out to them here.

I ended up creating specific CNAME-entries for each customer.

Not optimal, but not a big deal for me either.