garyr_h - 10:58 pm on Apr 22, 2012 (gmt 0)
Our traffic took a bit of a nose dive also on the 20th. Yet our serps seem ok strangely.
That's because of the different databases being served up. Since the 20th I've seen two completely different databases being served up.
Strange thing is that doesn't even make complete sense, because it seems that I'm getting some traffic from database A while other traffic from database B, but it depends on the keywords.
So I have no idea what's going on, but just know that there are different databases being served up and that is the reason why your traffic is so different even though that you see the same results.