CDN Usage Distribution in the Top 1 Million Sites

Distribution for websites using CDN technologies

Technology	Websites	%
Content Delivery Network	531,267	53.13
GStatic Google Static Content	528,933	52.89
AJAX Libraries API	250,536	25.05
CDN JS	189,974	19
Cloudflare	174,358	17.44
StackPath BootstrapCDN	160,368	16.04
Facebook CDN	140,521	14.05
CloudFront	106,038	10.6
jQuery CDN	91,161	9.12
WordPress Grid	67,653	6.77
jsDelivr	62,171	6.22
OSS CDN	57,399	5.74
Twitter CDN	41,869	4.19
Akamai	27,198	2.72
Amazon S3	21,593	2.16
Vimeo CDN	15,814	1.58
UNPKG	15,145	1.51
Microsoft Ajax Content Delivery Network	11,838	1.18
Azure Edge	9,753	0.98
Yahoo Image CDN	9,148	0.91