I use a 3 level silo structure for my website:
L1 = homepage
L2 = keyword page
L3 = supporting keyword pages
I used to rank top 5 on most of my keywords with L2 pages.
I'm seeing the following on some L2 keywords… rankins are slowly dropping to top 20 and than suddenly to page 5 of Google… when this happens I don't rank with L2 pages anymore but with a L3 supporting keyword page.
WTF is going on here Google?