AWS ACM 64 character limit

Question

I'm trying to add a pubic certificate in AWS ACM but its saying there is a 64 chracter limit which seems too small. I'm only trying to register domain name "www.shortenthisurlasitiswaytoolongandashorteronewouldbeappreciated.info"

Is it possible to remove this arbitrary limit?

Riku_Kobayashi · Answer

As stated in this document, the first domain to be registered cannot exceed 64 characters including periods.  
https://docs.aws.amazon.com/acm/latest/APIReference/API_RequestCertificate.html  
> In compliance with RFC 5280, the length of the domain name (technically, the Common Name) that you provide cannot exceed 64 octets (characters), including periods. To add a longer domain name, specify it in the Subject Alternative Name field, which supports names up to 253 octets in length.

So we will need to take measures such as shortening the domain name.

AWS ACM 64 character limit

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