If you or your web marketing company track your website rankings then you may become aware of a sudden drop at times in some of your main key phrases. This can happen for a number of reasons and often requires some in depth investigating to find out what has caused the change.
It may be that the search engine such as Google has introduced a new part or update to their ranking algorithm with has caused your site to drop. If not, then it is possible that your competitors have up’ed their game recently leaving your trailing behind.
All rankings do go up and down daily and also can vary dependant on what device you are using, if you are logged in to a Google account, your browsing history and also your geographical location, so when comparing rankings week by week you need to ensure that the results are accurate.