There seems to a lot of product related stuff hit.
Just checked a couple of searches for "product type + reviews" - first 3 pages are almost all Amazon.co.uk results (first place was a newspaper article and 3rd page had a couple of other sites). That's a solid 25+ pages from a single domain in the top 30. Haven't seen SERPs flooded with a single domain like this since the days of 500k+ page spam sites with spun content.
Searches for "product name + reviews" are the same. One search only has 7k results (pretty niche product). 9/10 are Amazon reviews. 8 are different size variants of the product, one is a competing brand. 10th place is my site. Seen this for a few niche / uncompetitive product searches.
More competitive stuff has a similar breakdown, but with slightly less Amazon stuff and more other review site pages.
Then there is this: [
twitter.com...]
Is Google possibly taking a swing at lowish content affiliate review sites?
What's interesting about Amazon's performance is that their product titles are generally stupidly over-optimised by retailers trying to game their internal search. I wonder what impact that is having on Google SERPs - the scale of that over-optimisation would likely sink other domains, but it's likely benefiting Amazon.
Run Amazon .co.uk and .com through SEMrush or other ranking tool. UK showing a 30%ish increase year on year in top 10 rankings / COM showing 50% increase. COM is 20% up in March 18 compared to Jan 18. Those are massive gains.