Sometimes it is really difficult to identify cloned sites and scammers are too smart in copying the original site. They even use the same brand logo and features from the original sites. Small steps like checking the correct address of the site, presence of padlock sign, beginning with https etc. could help us a lot. We can also use plugins like WOT(Web of Trust) which gives a trust score of the site to us while browsing. It is a score based on the reviews given by users. In case of a suspicious site color of WOT icon changes accordingly. Green means safe, yellow shows moderately safe and red indicates that the site is not at all safe to use. Have you ever used any extensions like WOT and Avast Web Reputations?