When dealing with a decline in traffic it is important to determine the source of the problem. Is the change something indirect that you can't control such as change in a search algorithm or a new competitor in the market, or is the change due to something more direct, like recent (well intentioned) changes to your site or a a server outage?
The clues are all in your Analytics data.
Is the loss from a single referer (Google, Yahoo, Bing)?
Is the traffic loss clustered around a specific ...
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