Just would like some advice on this one. I have at least 3 sites doing this. After having some ranking jumps naturally they are dropping 5-10 spots on average for their main keywords without any reason.
I then go into WMT - force crawl and get the page re-indexed which instantly restores them to the position they were before the drop.
Then a day or so later they have dropped again.
I have repeated this process multiple times and the same thing happens every single time
has anyone else seen this or know why this happens?