What is the http://go2.wordpress.com/ redirect?

It seems to be generated by API for affiliate service.

See this topic Link redirection through go2.wordpress.com:

The redirection is for a skimlinks ad
service we are running.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)