Traffic Disappears for Main Domain, but Continues at Subdomain

Google Traffic dissappear for 1 week and 3 days

[Ken_Xu]

Hi, guys.

It's my first time posting a thread here at webmasterworld. I would like to know if anyone have an idea about my situation.
I have one main blog at example.com and one blog at a subdomain.
the the problem is located in the main domain blog. Google (since Jan 7th) suddenly stop sending traffic to the blog. I have checked with tool at GWT and I found nothing wrong. Since this blog rely 100% on google traffic, I'm really panic and I have sent lots of email to my friends but still get no answer that could fix this problem.

What strange is, the blog at the subdomain keep getting a good traffic from google!
Anyone have any idea about this? a help would be appreciated!

Regards,

Ken

[edited by: tedster at 2:19 pm (utc) on Jan. 16, 2008]
[edit reason] switch to example.com-it can never be owned [/edit]

[Robert Charlton]

Is this the same blog at two different urls, or is it different blogs?

[Ken_Xu]

Hi, Robert.
both of them are hosted in a same domain. The one that the traffic disappears is on the root of the domain (www.example.com) while the blog in subdomain keep getting good traffic from google.

I have checked with Google Webmaster Tools and found nothing wrong except the "404 not found pages" and "restricted pages by robot.txt" which has some number on it.

Previously before the incident, I got around 200 steady traffic from Google for my targeted keywords. Now, I got zero traffic from google organic search, except some from google's image search (around 2-5 a day).

[Robert Charlton]

Ken,

What I was trying to get at was whether this was the same content showing up on two different domains, or whether it's different content. Your answer "both of them" suggests that maybe they're different, but I'm not sure of that.

If they are different blogs, the other questions I'd ask is whether they're closely related in subject matter, whether you were getting traffic on the same searches or on different searches, and whether their external inbounds are independent of each other (or whether they're from the same inbound linking sources).

[Ken_Xu]

Both of my blogs have a different topic. One is about blogging and life and the other one is about computer hardware. I guess the inbound links I get are also from different sites and blogs.

Thanks in advance for help, Robert. I'm really confuse and kinda dumb about google.

Regards.