My site used to rank well for a keyword. My site doesn't got much content on that page, It only have 1 or 2 sentence. But after I update my site, the most recent content links also appear on my right hand side sidebar, then my google ranking dropped suddenly. I rank around 670 for that keyword now. So I just thinking the main reason of my drop in ranking is related to my sidebar links. Does anyone have any idea?
I really don't think so, probably just a bug from google. wait for some days and should get back to normal.
I might know the possible reason why my site ranking drop suddenly. Because I use a plugin which show certain post at the front page (using wordpress). And I comment out the code which shows the normal post. But I don't know that even I comment out the normal post code, the posts are still in the index page but they just become hidden text. So I got a lot of hidden text in the front page that I don't know. I just corrected this and see how's things are going.