- _VALID_URL = r'https?://(?:(?:(?P<sub_domain>%s)\.)?go|(?P<sub_domain_2>abc|freeform|disneynow))\.com/(?:(?:[^/]+/)*(?P<id>vdka\w+)|(?:[^/]+/)*(?P<display_id>[^/?#]+))'\
- % '|'.join(list(_SITE_INFO.keys()))
+ _VALID_URL = r'''(?x)
+ https?://
+ (?:
+ (?:(?P<sub_domain>%s)\.)?go|
+ (?P<sub_domain_2>abc|freeform|disneynow)
+ )\.com/
+ (?:
+ (?:[^/]+/)*(?P<id>[Vv][Dd][Kk][Aa]\w+)|
+ (?:[^/]+/)*(?P<display_id>[^/?\#]+)
+ )
+ ''' % '|'.join(list(_SITE_INFO.keys()))