# The most used CDN and edge networks As of October 2026, the most used of the 16 CDN and edge networks runsonwhat tracks is Cloudflare, found at 678,287 companies, ahead of Fastly (52,106) and Amazon CloudFront (49,675). A content delivery network sits between visitors and a company's servers. It caches pages and files in data centers around the world, absorbs attacks and often terminates TLS. Cloudflare is by far the most common choice on the open web; Akamai, Fastly and Amazon CloudFront are common at large enterprises and media companies. Many sites use a CDN without choosing one directly, because hosting platforms put their own edge network in front of every deployment. The counts below include both. ## CDN and edge networks ranked by companies using them | # | Tool | Companies | Share of category | Last 30 days | Most popular with | |---|---|---|---|---|---| | 1 | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | 678,287 | 83% | +128 −7 | – | | 2 | [Fastly](https://www.runsonwhat.com/reverse/fastly) | 52,106 | 6.4% | +20 −3 | Education Management (1.4×) | | 3 | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | 49,675 | 6.1% | +111 −7 | 1–10 employees (2.3×) | | 4 | [Akamai](https://www.runsonwhat.com/reverse/akamai) | 19,446 | 2.4% | +11 −8 | 10,000+ employees (14×) | | 5 | [Bunny.net](https://www.runsonwhat.com/reverse/bunny) | 11,157 | 1.4% | +5 | Construction (1.8×) | | 6 | [Tencent Cloud](https://www.runsonwhat.com/reverse/tencent-cloud) | 737 | <0.1% | +7 −2 | Internet (8.8×) | | 7 | [Huawei Cloud](https://www.runsonwhat.com/reverse/huawei-cloud) | 340 | <0.1% | +15 | 1–10 employees (7.1×) | | 8 | [Wangsu (CDNetworks)](https://www.runsonwhat.com/reverse/wangsu) | 215 | <0.1% | −1 | 10,000+ employees (23×) | | 9 | [Azion](https://www.runsonwhat.com/reverse/azion) | 195 | <0.1% | +1 | 1,001–5,000 employees (6.3×) | | 10 | [CDN77](https://www.runsonwhat.com/reverse/cdn77) | 144 | <0.1% | +1 | 51–200 employees (1.7×) | | 11 | [NGENIX](https://www.runsonwhat.com/reverse/ngenix) | 126 | <0.1% | – | – | | 12 | [smoxy](https://www.runsonwhat.com/reverse/smoxy) | 116 | <0.1% | – | – | | 13 | [KeyCDN](https://www.runsonwhat.com/reverse/keycdn) | 56 | <0.1% | +1 | – | | 14 | [Baidu AI Cloud CDN](https://www.runsonwhat.com/reverse/baidu-cdn) | 54 | <0.1% | +1 −2 | – | | 15 | [Gcore](https://www.runsonwhat.com/reverse/gcore) | 44 | <0.1% | +1 | – | | 16 | [Edgio (Limelight)](https://www.runsonwhat.com/reverse/edgio) | 6 | <0.1% | – | – | Share is each tool's part of all 812,704 matches in this category; a company using two tools counts for both. ## How to compare CDN and edge networks - Security features bundled in: DDoS protection, web application firewall and bot management. - Edge compute, if you want to run code close to users. - Coverage in the regions your customers are in, including mainland China. - Pricing by bandwidth versus flat plans. ## How runsonwhat finds CDN and edge networks CDNs show up in DNS (name servers and CNAMEs that point at the network), in the IP ranges a site resolves to, and in response headers such as cf-ray, x-served-by and x-amz-cf-id. ## FAQ ### What are the most popular CDN and edge networks? As of October 2026, the most popular CDN and edge networks by number of companies using them are Cloudflare (678,287 companies), Fastly (52,106 companies) and Amazon CloudFront (49,675 companies), according to runsonwhat. Cloudflare alone accounts for 83% of the 812,704 CDN & Edge matches runsonwhat has, and the top three together for 96%. 16 CDN and edge networks have at least one confirmed customer. ### Cloudflare vs Fastly: which is more popular? Cloudflare is more popular: 678,287 companies show public evidence of Cloudflare, against 52,106 for Fastly (13× as many), according to runsonwhat (October 2026). Amazon CloudFront is third with 49,675. ### Which CDN and edge networks do small businesses use most? Among companies with up to 50 employees, the most used CDN and edge networks are Cloudflare (346,542 companies), Fastly (23,955 companies) and Amazon CloudFront (18,553 companies), according to runsonwhat (October 2026). The counts cover companies with a known headcount; see each tool's page for the full size breakdown. ### Which CDN and edge networks do large companies use most? Among companies with more than 1,000 employees, the most used CDN and edge networks are Cloudflare (25,414 companies), Amazon CloudFront (3,501 companies) and Akamai (3,287 companies), according to runsonwhat (October 2026). Large companies often run more than one tool in a category, so the same company can count for several. ### Which CDN and edge networks are most popular in the United States? In the United States, the most used CDN and edge networks are Cloudflare (219,069 companies), Fastly (23,618 companies) and Amazon CloudFront (13,952 companies), based on companies runsonwhat has located there (October 2026). Cloudflare has 82% of the CDN & Edge matches among companies based in the United States. ### Which CDN and edge networks are most popular in the United Kingdom? In the United Kingdom, the most used CDN and edge networks are Cloudflare (43,924 companies), Amazon CloudFront (2,901 companies) and Fastly (2,614 companies), based on companies runsonwhat has located there (October 2026). Cloudflare has 86% of the CDN & Edge matches among companies based in the United Kingdom. ### Which CDN and edge networks do IT services companies use? IT services is the industry with the most CDN & Edge matches, and its companies use Cloudflare (47,020 companies), Fastly (4,074 companies) and Amazon CloudFront (3,532 companies) most, according to runsonwhat (October 2026). Each tool's page breaks its customers down by industry, so you can check where a tool over-indexes. ### Which CDN and edge networks are companies adopting right now? In the 30 days to October 2026, the most new adoptions runsonwhat recorded were for Cloudflare (128 companies), Amazon CloudFront (111 companies) and Fastly (20 companies). A start is counted when a recheck finds a tool that the previous check of the same company, done the same way, did not. ### Which CDN and edge networks are losing customers? In the 30 days to October 2026, more companies stopped than started using Baidu AI Cloud CDN (2 stopped, 1 started), according to runsonwhat's rechecks. Short-term moves are small next to each tool's total, so read them as signals rather than trends. ### What is Cloudflare's market share among CDN and edge networks? Cloudflare has 83% of the CDN & Edge matches runsonwhat has found (678,287 companies of 812,704), as of October 2026; Fastly has 6.4%. This is share of companies with public evidence of each tool, not share of revenue or seats, and a company that runs two tools counts for both. ### How does runsonwhat rank CDN and edge networks? runsonwhat counts the companies where a public record shows each tool in use and ranks by that count. CDNs show up in DNS (name servers and CNAMEs that point at the network), in the IP ranges a site resolves to, and in response headers such as cf-ray, x-served-by and x-amz-cf-id. A company counts only when a direct record backs it up. The full method is at https://www.runsonwhat.com/methodology. ## Related categories - [Hosting & Cloud](https://www.runsonwhat.com/tools/cloud-hosting.md) - [DNS](https://www.runsonwhat.com/tools/dns-providers.md) --- Source: runsonwhat, https://www.runsonwhat.com/tools/cdn (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.