Cloudflare says that, as of June 23, 2026, cdnjs runs exclusively on its Developer Platform after a large-scale migration. The company presents cdnjs as a demanding internal customer and says the project exposed platform limits that were addressed during the work. cdnjs reportedly reaches roughly 12% of websites and represents 48.3% of the JavaScript CDN market. It averages 108,000 requests per second, about 9 billion requests per day, across more than 330 Cloudflare data centers, with a 98.6% cache-hit rate. These figures are company-provided operational claims.
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