joined:Apr 11, 2013
I have one page that was ranking good for 2 keywords, one was 4th and other was 11th. The second one was the most important one so I decided to optimize the main page for the second keyword as well (previously it was optimized only for 1st keyword).
I have changed the title a bit, <h1>, added new keyword to content and updated some image names and alt tags.
Today I've noticed that the second keyword dropped rankings but as it looks only on google US for now, while it remains same on other google markets.
What does this mean and why did it drop only on Google-US so far? Will other follow? Shall I change everything back as it was before?