Hi, I'm new here! I'd just like to know if "Welcome on our website" is correct, as well as "Welcome in a country" or "welcome at somewhere" etc... and if you prefer that form to the typical "welcome to" to give some variety.
May I ask what situations?
In most cases I use Welcome to. But in spoken English I've heard welcome at\in\on too.
As the other have said, 'to' is the normal prepostion, but in a pharse like 'You are welcome to/on our website', the use of 'on' would be fine.