Yes online dating websites do work.
When doing online dating make sure you use a well known and trusted dating website.
Also do not meet up with the girlfriend or boyfriend right away.
You should chat with the boyfriend or girlfriend for at least 6 months to a year before you actually do decide to meet up.
Get to know each other through the online dating website and get to where you can trust that person.
I found my wife though Match.com but there are plenty of other websites for online dating such as eharmony.com and other websites such as Bumble, EliteSingles, OKcupid and Hinge.
There are plenty more of those online dating websites but those are the ones that I can think of right now.