This regex is a duplicate of another one, but with a minor modification to support subdomains with one or more "-" in it. ie:

Spamlord assignment: this regex detects phone numbers in text.

Spamlord assignment: this regex detects email addresses in text.

Define los parámetros para la consulta de los datos del departamento.

Regex to find product codes that are usually all upper case with numbers or all numbers with possible hyphens, slashes or dots as delimiters. Anything that matches the date format ##/##/##?? with various delimiters will not match. Require that the code contains at least 1 number. ...

Match % signs of sequences that aren't valid "percent-encoded"

Originally used as a search and replace in database fields to change the URL strings to point to .jpg's instead of .png's. Can be used generically as a search and replace in URL's.

Cannot enter 0 or a proper fraction

Regex to detect Degrees Minutes in coordinate system WGS84