I have hosted several web sites which members must login..

But, by some problem..
for example, partition full, DB down... etc,
website can be accessed but can't login..

So, my customer requested that I must visit the sites and check login well or not per every hour. But as you know, I can't do.

So, I 'm going to buy or gain some monitoring solution which have these functions.

-. visit some websites and auto login check
-. If can't login well, alarm(e-mail or popup etc.) is required.

Whta'sup and other solutions just monitors the site up or down.
but I need login monitoing program...

Anyone who knows these solution(commercial or freeware all good to me)?