Hello friend, I'm not new in seo field. I have 3 years experience in seo and I have good knowledge of all seo techniques and methods. But many time I have faced this kind of problem. I have client from USA and many time my client says that keyword ranking is down. when I have checked this they show same position. My client checked it on local data center. Can You suggest Usa local data center URL. Awaiting for your reply. Thanks
You can use google keyword tool->Ad preview and diagnose. There you can set the country and region you wanna check the keyword rank.
www.google.com/ncr This is an alternative web address for Google.com that always takes you to Google.com without redirecting you.