I've been trying to get an API key. When I get to the 'Domain Confirmation' page, I do everything correctly and add the file to my domain root. But the page still responds as 'Failed'. I can see the file if I go to the url shown on the page. Below is the text copied and pasted in the file:
Phrase: "#" File: "ydnPx0Nyg.html" Url to Check: "http://mysite.com/ydnPx0Nyg.html"
I noticed that the 'Phrase' has only one character but should have a phrase.