I have problem with my wordpress - not domain

Before today, my wordpress loading time is under 7seconds roughly.

But today, it will load after 45seconds and it will load fast.
I did not add any plugin or post since yesterday.

I have backup my sql and files.
Reinstall it back and the same problem occurs.

Can anyone help me with my wordpress?
I have check all the domain hosted on the same server and they got no problem with the slow loading. All the advertisement (java) is ok when I checked other sites that using the same advert.

My site is http://xbrain.biz

Please help me

 

Yes, it is loading super slow.

Just ran a service scan on your domain. It reports http port-80 timing out.
Also, there looks like a dns problem and also no reverse dns set up.
I would contact your host

 

thanx cyanide - what is no reverse dns set up?

 

Well, reverse dns is a lookup, to see that your domain traces back to your ip address. Sometimes when a new hosting account is set up, the reverse dns is pointing to the server ip, and not yours. This happens quite often if you have a dedicated ip.

Also, reverse dns usually doesn't affect the website, it is mostly used for email purposes. But since I detect several dns issues, it might be worthwhile to check out.

 

oo, what you mean is the nslookup command is it?
teach me how to do a reserve nslookup?

and how do you do the scan service

 

Now your site is not coming up at all.

You can do the dns search here http://www.dnsstuff.com/
Just enter your domain xbrain.biz in the first box,
and then after enter your ip address in the third box for reverse dns