The most seo question the seo webmasters asked them self are “When Seo Algorithm Changes Occur ?”
Your rankings can improve or get worse. Many people rush off to change things right away when the algorithms change. Sometimes the search engines new algorithms can be aggressively at first and later updated the changes to minor changes. search engines are always trying to fight forms spam and links spam to determine how aggressive to be with there new algorithms unless they sometimes go too far with them and changed there algorithm again to minor changes.
If you are unsure of what just happened, don’t to anything !, don’t rush and make changes to your site until you figure what’s going or what are you doing wrong. Sometimes when algorithms are rolled back or made less aggressive, many sites still do not rank well because their webmasters changed things that were helping them. Nobody is owed a good rank, and just because a ranking temporarily changes does not mean that a site has been penalized.

One of the greatest SEO techniques is knowing when to do nothing at all.

All SEO techniques are just a balance of risk versus reward, and while you want to rank at or near the top of the search results, you probably do not want to use techniques that are exceptionally aggressive as compared to the other top-ranking sites if you intend to build a site for long-term profits.