It leaves quite a large gap between SiteGround (72%) and pretty much everyone else still in the shared hosting space (<60%).
I do wonder if this is a bellwether for shared hosting becoming a thing of the past. There are still millions of people on it and in all likelihood will continue to be. But we've seen the rise of all sorts of specialty hosting which is likely eating up a lot of the market. The rise of developer oriented providers like Amazon, Azure, Digital Ocean have opened up the floodgates for building services on top of them. We've seen numerous companies built on top of these companies and targeting niches, especially WordPress like FlyWheel, Pagely. We've even seen configurable providers like CloudWays which lets you select the cloud provider of your choice and install and manage your websites on them.
These new hosting providers are charging more and giving different experiences to users. Developers have flocked to them and are building the next generation of web hosting services. High quality companies seem to be moving up market, charging more and providing more where I'm guessing the margins are substantially better than in the shared hosting space unless you're trying to upsell everything.
It will be interesting to to follow, will we continue to see more consolidation ala EIG and GoDaddy? Is there room for another great shared hosting provider that grows very large? Or will shared hosting slowly fade away as superior technologies (VPS) and specialized companies eat away at it providing the specific services people really want. We've also seen non-webhosts like SquareSpace, Wix and Weebly gain large market shares. On the BuiltWith estimates ranging from 880,000-1.6m websites for each of them.
The one trend I am not a fan of is that there are fewer and fewer really good choices in the shared hosting space that are of significant scale.