Companies Using Cloudflare

We detect Cloudflare on 9,236,181 domains, including Amazon Literary Partnership, Accenture PLC, Cognizant Technology Solutions Corporation. A detection means the technology is present on that domain, which for large organisations is often a single storefront or subdomain rather than a company-wide deployment. Among domains we matched to a company with a resolved industry, the most common is Retail (4.99%).

We detect 9,236,181 domains running Cloudflare across our monthly crawl of live business domains. Company data could be matched for 4,008,345 of them (43.4%), and every company-size, industry and country breakdown on this page describes that matched subset rather than the full detected base. A further 128,948 domains carried a Cloudflare detection previously and no longer do.

Cloudflare holds 47.33% of the CDN category, ranking #1. This is a share of the domains we detect running a platform in this category — not a share of all websites, and not a share of spending — so it is not directly comparable to figures published on other denominators.

The top alternatives to Cloudflare include cdnjs (11.12% market share), jsDelivr (11.05% market share), Google Hosted Libraries (8.15% market share), Google Cloud CDN (6.68% market share) — measured as a share of the domains we detect running a platform in this category.

United States leads with 1,512,583 matched Cloudflare domains, followed by United Kingdom (349,414), Canada (171,566), Australia (162,890), Brazil (159,271). These are counts within the 4,008,345 domains we could match to a company record, not the full detected base.

The most common company size is 1-10 employees, representing 65.32% of the Cloudflare domains we could match to a company record and size — a subset of 4,008,345 matched companies, not of all 9,236,181 detected domains. This is followed by 11-50 employees (22.85%) and 51-200 employees (7.48%).

Among the Cloudflare domains we could match to a company with a known founding date, the largest group was founded in the 2010s (40.54%), followed by the 2020s (23.22%). That matched subset is drawn from 4,008,345 companies and is not representative of all 9,236,181 detected domains. This suggests Cloudflare is most popular among relatively young companies.

The ideal Cloudflare customer is: Company Size: Any - 65% under 10 employees, Location: Global; US is only 40% of placeable companies, Industry: No vertical skew - nothing above 5%, Platform: Often arrives with Shopify or a host, not by choice, Buying Trigger: Free tier; DNS move or a host's default — based on our analysis of 4,008,345 enriched companies at TechnologyChecker.io.

Cloudflare is a network that sits between visitors and a website's origin server. Traffic resolves to Cloudflare first, which serves cached content, filters attacks and bots, terminates TLS, and forwards what is left to the origin. Founded in 2009, it now runs in 348 cities across more than 100 countries. The entry tier is free, which is the single most important fact for reading any number on this page.

Cloudflare reported $696.1 million of revenue for the quarter ending June 2026, up 36% year over year, alongside a $205.7 million GAAP operating loss. Those are company figures, not ours. Set against the 9,236,181 domains we detect, they are a reminder that domain count and customer count are different measurements: most of the domains here are on the free tier and pay nothing.

We detect Cloudflare on 9,236,181 domains in our August 2026 crawl, more than any other technology we track. It holds 47.33% of the CDN category, more than every other member of that category combined.

It means the domain is served through Cloudflare's network rather than straight from its origin server. We detect that from response headers (cf-ray, server: cloudflare) or from nameservers delegated to Cloudflare. It does not tell you which plan the site is on, and Cloudflare's entry tier is free.

No, and this is the most important caveat on the page. In a hand-classified sample of 155 domains, 51.6% had Cloudflare nameservers (the owner chose it) but 27.1% were proxied through Cloudflare with their nameservers elsewhere, meaning a platform or host put Cloudflare in front of them. The clearest case is Shopify: 2,274,911 Cloudflare domains are Shopify stores, 99.33% of all the Shopify stores we detect, and the Cloudflare relationship there belongs to Shopify.

Cloudflare appears on 9,236,181 of the domains in our index. Within the CDN category it holds 47.33%. We would not extrapolate that to "percentage of the whole web" from our corpus, because which domains get crawled changes month to month.

Organisations we currently detect include Accenture, IBM, JPMorgan Chase, DHL Express, Starbucks, Allianz, Wells Fargo and Abbott. Each is verifiable in a single request, because the detection is a response header.

Among whole-site proxies and CDNs the alternatives are Amazon CloudFront (397,677 domains), Bunny (144,294), Fastly (94,725) and Akamai (48,553). Note that cdnjs, jsDelivr and jQuery CDN rank above those in the same category but are public library hosts, used alongside Cloudflare rather than instead of it.

Gaining, against every commercial peer we measured. Since March 2026 we recorded 19,713 domains arriving from Bunny against 673 leaving, 13,376 from Imgix against 126, and 4,493 from Amazon CloudFront against 2,605. The one corridor running the other way is Hostinger CDN (16,737 out, 5,448 in), which is a hosting provider moving its own customers onto its own CDN.

It is the most reliable we run. Because it reads HTTP response headers and DNS records, no JavaScript needs to execute: on active domains our detection-to-scan ratio is 1.000, so Cloudflare is found on every scan where it is present. Churn is the weak side - 128,948 domains have dropped it since March 2026, but 65.5% of those were seen only once, so that number is directional.

Because the entry tier is free. 65.32% of the 4,008,345 enriched companies we match employ ten people or fewer, and another 22.85% employ 11-50. The same product also serves Accenture and JPMorgan Chase, which is why the size table and the notable-companies list look like they describe two different products.