Looks like a 12-year old manages setti website.
I added my HLDS server to setti and after a couple of days it doesn't show up in the server list.
Also, your online stats say that the server is offline for 3 months ! WTF ? The server is up and running !
Ok, I had to ask my provider to change the IP of the gameserver and added it again. Same result, after 3-4 days, the server shows as offline for 3 months.
What's going on here ?