If you run whois (or jwhois) on the domain and find that it's registered for only a year or two, it's probably fake. Especially if it claims to have been around for a decade, but was registered last month, it's fake. (This doesn't apply, of course, to political campaign sites.) Example:
$ jwhois inehoilandgas.ru
[Cached]
[whois.ripn.net]
% By submitting a query to RIPN's Whois Service
% you agree to abide by the following terms of use:
%
http://www.ripn.net/about/servpol.html#3.2 (in Russian)
%
http://www.ripn.net/about/en/servpol.html#3.2 (in English).
domain: INEHOILANDGAS.RU
nserver: ns1.hosting.reg.ru.
nserver: ns2.hosting.reg.ru.
state: REGISTERED, DELEGATED, UNVERIFIED
org: INEH OIL AND GAS
registrar: REGRU-REG-RIPN
admin-contact:
http://www.reg.ru/whois/admin_contactcreated: 2013.08.07
paid-till: 2014.08.07
free-date: 2014.09.07
source: TCI
If you're going to be dealing with Russian companies, you should learn some Russian. I know a little Russian; my vocabulary is not extensive, but my grammar is good enough to write an understandable report. Ineh claims to be in Moscow, but the site is in Ukrainian.
Those are just a few of the signs that a site is fake. Browse this site, and you'll find plenty.
... ni los estafadores heredarĂ¡n el reino de Dios. 1 Cor. 6:10