you can look at the traffic profile of pretty much any of the major tube and the trend is unmistakable since this summer, but going back to early this year:
Pornhub.com Analytics - See Traffic Ranking & Stats
Youporn.com Analytics - See Traffic Ranking & Stats
Xvideos.com Analytics - See Traffic Ranking & Stats
Xhamster.com Analytics - See Traffic Ranking & Stats
Porntube.com Analytics - See Traffic Ranking & Stats
http://www.similarweb.com/website/porn.com#overview
http://www.similarweb.com/website/redtube.com#overview
http://www.similarweb.com/website/xnxx.com#overview
they are losing anywhere from 20-30% of traffic since this summer. more since jan/feb.
i believe this is all google traffic. it's not that easy to spot unless you run one of the sites which have been trending up, as the impact mostly touches long tail queries.
try looking for keywords like these:
https://www.google.com/search?q=bust...utf-8&oe=utf-8
https://www.google.com/search?q=bust...+creampie+tube
https://www.google.com/search?q=bust...video+hardcore
etc
prior to this summer, those results were dominated by the video pages of big tubes. now they get 20-30% of first page results TOPS.
so who are the winners? it's hard to identify, since the volume seems split between many smaller sites, but they seem to be tube aggregators and mgp type tube sites, like:
http://www.similarweb.com/website/iwank.tv#overview
http://www.similarweb.com/website/esmatube.com#overview
so are we coming full circle? back to mgp and linklist style sites outranking content pages? any thoughts? if you run a tube site, does this analysis confirm the trends you see?