Kathy C.
An agency, not a gov site
This is a company that expedites visa applications. It’s a very fast service for not an enormous cost. I used them accidentally because their website is set up to look very like the official one and I didn’t realise until too late that i was dealing with an agent. Then I was very worried I’d been scammed but it’s not a scam, it’s just a clever business that looks very like the official government site. If you have an uncomplicated and non urgent ESTA application like me, then it’s a waste of money and you’ll get your visa cheaper by going direct to the official site. But if your application is more complicated then I’d imagine you would find this service very good and useful. They do what they say. My only concern is how long they hold copies of all my documents. I have emailed them to ask them to destroy them but have not heard back yet.