In case you were curious, from Wikipedia[1]: > Each label may contain up to 63 characters. The full domain name may not exceed a total length of 253 characters

In case you were curious, from Wikipedia[1]: > Each label may contain up to 63 characters. The full domain name may not exceed a total length of 253 characters in its external dotted-label specification. In this context "label" means a segment of the name, so in "www.example.com." "www", "example", and "com" are all labels. The next sentence: > In practice, some domain registries may have shorter limits. alludes to your problem somewhat ;) [1]: http://en.wikipedia.org/wiki/Domain_Name_System http://en.wikipedia.org/wiki/Domain_Name_System