Originally Posted by
itsblitz
the only thing i could think of was the way i was redirecting mobile users to a single page on my site for mobile casino bonus offers
I encountered the same problem twice.
Some years ago I installed a redirection script from the mobile to the regular website (95% of my traffic is mobile). It resulted in a massive drop in rankings, so I removed the script. After that, rankings picked up again.
Recently I tried it once more and within a few weeks again a massive drop. After the second removal, rankings increased again.
Although an auto-redirect script is very convinient for visitors, from a SEO pov I won't use it again.
"Depend on the rabbit's foot if you like, but remember it didn't work for the rabbit." R.E. Shay