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Regular Expression Details

Title Test Find Domain Name
Expression
(?:[^0-9][a-zA-Z0-9]+(?:(?:\-|\.)[a-zA-Z0-9]+)*)
Description
This is a little regex to verify domain style names per RFC952. This is also found in RFC1034 and both use the terms domain name and host name interchangeably even though I believe there may be a difference. Only alpha, digit, and dashes allowed with a dot as delimiter. Must begin with alpha and not end with a dash or dot. No spaces.
Matches
abc.123 | abc-xyz | my-name.for.me
Non-Matches
123.abc | abc- | abc..
Author Rating: Not yet rated. CharlesDemo
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