CDN Usage Distribution in the Top 1 Million Sites

Distribution for websites using CDN technologies

Technology	Websites	%
GStatic Google Static Content	443,947	22.43
Content Delivery Network	309,850	15.66
AJAX Libraries API	248,167	12.54
BootstrapCDN	146,733	7.41
Facebook CDN	138,398	6.99
CDN JS	130,603	6.6
CloudFront	97,653	4.93
jQuery CDN	74,228	3.75
Cloudflare	65,620	3.32
WordPress Grid	63,025	3.18
Twitter CDN	48,681	2.46
OSS CDN	48,276	2.44
jsDelivr	29,218	1.48
Akamai	19,556	0.99
Vimeo CDN	16,851	0.85
Amazon S3	15,624	0.79
Yahoo Image CDN	9,128	0.46
Rackspace CDN	7,013	0.35
Microsoft Ajax Content Delivery Network	6,660	0.34
RawGit	6,204	0.31