Mobile adverts without mobile websites

I am completed flawed by the Daily Mail (MailOnline) and not in a good way.I clicked on a link on my mobile device and unfortunately was taken to the MailOnline website. What I was greeted with was a popup generic iPhone notification which the MailOnline had pushed onto my device .The part that flawed me is the site behind the advert isn't even mobile optimised.Way to get it wrong.