GoKawiilanalysis
A content delivery network sits in front of a website. Requests hit the CDN's edge servers first, which serve cached content, terminate TLS, filter traffic, and pass the rest back to the origin. That means the CDN is a shared dependency: if it goes down, every site behind it goes down together, whether or not those sites have anything else in common.
I went through CipherCue's tracked European companies to see which CDN fronts their websites. Of the 44,143 companies where we detected a CDN at all, 39,547 are behind Cloudflare. That is 89.6%.
89.6% of 44,143 European companies with a detected CDN sit behind Cloudflare
For a reference point, W3Techs put Cloudflare at 84.1% of sites where the reverse proxy provider can be identified, as of 28 July 2026 (w3techs.com). Our 89.6% is measured the same way, as a share of the identified set rather than of all sites, so the two are close; the European cut here runs a little higher.
I only counted companies that actually run a CDN. If a company serves its site straight from its own origin, it is not in these numbers at all. So this is not "Cloudflare vs the entire web"; it is who the CDN users went with.
First place and everyone else
The four CDN vendors we classify, counted as distinct companies where each was detected:
39,547 Cloudflare 3,112 Amazon 1,299 Fastly 396 Akamai Distinct European companies where each CDN vendor was detected (a company can appear under more than one vendor)
Amazon is second at 3,112, but that number needs a caveat. We detect Amazon through CloudFront, and Amazon is also a general cloud host, so some of these are companies whose origin happens to sit on AWS rather than companies that deliberately chose CloudFront as their front door. Fastly does not have that ambiguity. It is a pure CDN, and it comes third at 1,299, which is roughly one company for every thirty behind Cloudflare. Akamai, the oldest name in the category, is fourth at 396.
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