.b2b-crm.com
- Should start with a letter or number.
- Should have at least one letter.
- All letters should be English and lower-case.
- No spaces.
- Can accept hyphens. But not followed by another hyphen.
- Should end with a letter or number.
Valid subdomain examples: "coolcompany", "cool-company", "cool-2", "cool2"
Invalid subdomain examples: "-coolcompany", "cool--company", "cool-", "COOL2"