Lost position in Google

[FromBelgium]

I own example.com and sell blue widgets. Ten years ago I was at position #1 for blue widgets. Now I am at #10. (still #1 in Bing and Yahoo). I have thousands of natural backlinks.

Since a year a competitor's site ranks #1: blueexample.com, a domain that I once owned and abandoned because I did not believe in keyword domains. This site has only one real backlink and is basically a poor quality copy-paste site (text from wikipedia and from my site). Why is this site at #1? Could it benefit from the fact that I redirected blueexample.com to example.com years ago?

[edited by: brotherhood_of_LAN at 9:37 pm (utc) on Apr 29, 2014]
[edit reason] example.com [/edit]

[goodroi]

Did you check for current 301 redirects?

[FromBelgium]

I let blueexample.com expire and somebody else bought it and put a new site on it. How can I check that there are any redirects?

[goodroi]

You said

This site has only one real backlink

How did you check for backlinks? Did you use a paid service? Most paid services will also report on 301 redirects.

[abiabiah]

domain name keyword match is the reason that website is number one in Google.

If you think how search query in mysql works, you can understand that what is the reason that website is on the top.

What about the competition out there for your targeted keyword?