No, but better than nothing. I worked a lot of suicides. 99% of them never told anyone or threatened. Most who threaten want personal attention. I doubt a website is what they need, but most are not going to kill themselves anyway.
I remember one night I was working at the Sheriffs office. It was shift change. We got a call of a man threatening suicide. I handed it off to the third shift captain since I was clocking out in a few minutes. He told the man "GA. Supreme Court threw out the suicide statute. It is legal to kill yourself. If you decide to, please call back right before you do it so we can get you cleaned up before you start stinking."
The man is still alive today by the way.
I said "That's cold ain't it Cap?"
He said "Since I had to kill someone that wanted to do suicide by cop, I don't answer suicide threat calls unless an innocent person is in danger. Besides, they don't have problems, I have problems. I see kids faces every night that I killed in Nam. Little b......s trying to walk up to me with bombs. I got problems, that ------ ------ on the phone don't." I said, ok Cap, have a good night. Catch you at shift change.