I think it would be better to fix those regular expressions from `$` to `\Z` . ``` $ pip freeze | grep validators validators==0.12.2 $ python Python 3.6.5 (default, Jun 16 2018, 01:20:19) [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import validators >>> validators.domain("""example.com ... """) True ```