My website had poor on page SEO which I found out after realizing I could not rank for my primary keyword. I made the necessary adjustments and I started improvement in in Google for the primary and several other long tail keywords. One of my websites on the same server (Just host shared hosting) saw a spike in traffic as a result of my photo report of a historic event in my hometown. The account was suspended by Just Host for 16 hours. When it was all over, all of my sites plunged in the serps including my main site that was doing so well. Traffic has almost dried up as a result. Can anyone tell me if this is a temporary setback or will I have to rebuild my ranking in the serps? If so, what SEO strategy is best to get back on-track?
Most likely a temporary set back. Now that your sites are back online, it should only take a few days to get those SERPs back.