this post was submitted on 17 Aug 2026
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Something like 40% of the top 100k sites use Cloudflare. Builtwith says 44%: https://trends.builtwith.com/websitelist/Cloudflare/High-Traffic-Volume
The pricing on their paid plans is very competitive. For small to medium sites, it's orders of magnitude cheaper than Akamai. The WAF and DDoS protection is pretty good too.
The largest sites like Google, Facebook, Netflix, etc have their own CDNs, including servers they provide to large ISPs for free since it significantly reduces upstream bandwidth usage (Netflix call this Open Connect; Meta's is Facebook/Meta Network Appliance). Outside of the largest sites, you'd be surprised how many companies rely on Cloudflare. It's kinda scary.
Doesn't your link show top 100k sites that use Cloudflare? I mean it's Home -> Trends -> Content Delivery Network -> Websites using Cloudflare -> Top 100k Sites by Traffic there.
That same site says CF is ~35% https://trends.builtwith.com/cdn
Which is a lot more than I thought(and a lot less than the entire world), probably misunderstood CF own claim of 20% of the Internet as sites when it's for traffic.
What surprised me is that 95% is not shared by CF, AWS(just 8% seems sus), Azure(not even in their stats), by their stats almost half of the Internet is run by smaller CDNs(if I interpret their Other correctly). To me personally it sounds way too good and suspicious, maybe there is some survivorship bias at play there.
The title of the page I linked to is "Websites using Cloudflare in the Top 100k Sites by Traffic" so I think my interpretation was correct.
Also, one domain can use multiple CDNs (eg one subdomain uses Cloudflare while another uses Bunny) so I'm not sure how their percentages work.
I'm also not sure how they count sites that use Cloudflare but not the CDN product (for example, if they disable caching and only use the WAF). That looks identical from a client side so there's probably no way to tell.
Maybe I shouldn't trust their data.
The chart wouldn't be showing all of AWS, just Cloudfront (their CDN). There's plenty of services that use AWS EC2 or Lightsail but front it with Cloudflare.