Top 5 ranking only from 1 machine - not logged in to Google Account

[atlantis76]

Hi all

My site is 5 months old. While I do update its content, and have quite a few very quality links to it, the site wasn't on top 50 for < a common single keyword >. Which basically makes sense.

Surpisingly today, I could see my site on top 5 for this keyword. I got the same SERPS on other searches I did from machines on the same IP.

I wasn't logged in to any google account while searching.

When I make searches from other IP's - I see my site on positions 20-30. Sometimes below.

My question:
How come I see my site in such extremely high positions on my machine?

I remind that this is a quite popular single word on which I compete here.

I'd love to hear your thoughts and comments.

Regards
Assaf

[edited by: tedster at 3:42 pm (utc) on Mar. 26, 2008]

[tedster]

If you see this again, try dumping your Google cookies. I'm guessing you may have been logged in and closed the window without logging out. I've done it a couple times, and I try very hard never to do a Google Search while logged in to any Google account anywhere. So I know how easy a slip it is, because I am almost a maniac about this.

[atlantis76]

I did Signed Out (as I'm obsessive about that as well), and cleaned cookies, but the site is still there.

Which is good, but doesn't seem realistic.

[tedster]

It's possible that the different computers are getting routed to different data centers. See:

How Do I Know Which Google Center I am Looking At [webmasterworld.com]

If that's the case, it's a very positive sign about your rankings.