cdnjs

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cdnjs
CDNJS Logo - Web, Dark Variant.png
Developer(s)Ryan Kirkman, Thomas Davis, Matt Cowley, Sven Sauleau, Tyler Caslin
Initial releaseFebruary 25, 2011; 10 years ago (2011-02-25)[1]
Repositorygithub.com/cdnjs/cdnjs
Written inJavaScript, Go
Operating systemCross-platform
TypeFOSS CDN
LicenseMIT License[2]
Websitecdnjs.com

cdnjs is a free and open-source software (FOSS) content delivery network (CDN) hosted by Cloudflare.[3][4] As of May 2021, it serves 4,013 JavaScript and CSS libraries, which are stored publicly on GitHub.[5][6][7] It is included in millions of websites, or 12.4% of the websites on the Internet, making it the second most popular CDN for JavaScript.[8][9][10]

History[]

In January 2011, Ryan Kirkman and Thomas Davis created the service,[11] launching it on GitHub on February 25, 2011.[12][13][14] It initially served content through Amazon CloudFront.[12][15] On June 15, 2011,[16] cdnjs partnered with Cloudflare, who provided the CDN and subdomain cdnjs.cloudflare.com for the project.[12][13][14][17]

On November 1, 2019, the founders turned over control of cdnjs to Cloudflare, citing "technical and commercial reasons."[18] According to the community maintainers, the project was difficult to manage because of limited access to the GitHub repository, inactive founders, and a small budget.[18][19][20] It is estimated the annual budget at the time was approximately $50/yr.[18][21]

Operation[]

The service is maintained by the community and Cloudflare.[4] As of May 2021, there have been 1,443 contributors to the main GitHub repository, and 88 contributors to the newer package configuration GitHub repository.[6][22]

It is also sponsored by DigitalOcean, Algolia, Heroku, Atlassian, Sentry, and Lean20.[23][24][25]

There is a public JSON API for developers to query cdnjs library metadata.[26][27]

Resources on cdnjs can be loaded using a number of connection protocols – HTTP/2, HTTP, HTTPS or SPDY.[5][25][28]

The cdnjs.cloudflare.com domain is part of the HSTS preload list.[29]

There exist websites that host clones of cdnjs libraries on their own servers:

References[]

  1. ^ "cdnjs/cdnjs GitHub API". GitHub. Retrieved 8 July 2019.
  2. ^ "cdnjs/LICENSE at master · cdnjs/cdnjs". Retrieved 17 April 2019.
  3. ^ "libraries - cdnjs.com - The best FOSS CDN for web related libraries to speed up your websites!". Retrieved 17 April 2019.
  4. ^ a b "Sponsorships". Cloudflare. Retrieved September 3, 2020.
  5. ^ a b "Top 4 CDN services for hosting open source libraries | opensource.com". opensource.com. Retrieved 18 April 2019.
  6. ^ a b "cdnjs/cdnjs: