Ask HN: Are there any free Cloudflare competitors?

I really like Cloudflare and use it on all my sites because of their generous free plan. But I'm not sure how to feel about one company routing 20 % of internet traffic and counting.

Is there any competitor worth a look?

Edit: It's 20 % of all websites supposedly, not of all web traffic, but I think the point still stands

https://w3techs.com/technologies/details/cn-cloudflare