The recommended CDN for Bootstrap, Font Awesome and Bootswatch powered by jsDelivr


BootstrapCDN was founded in 2012 by David Henzel and Justin Dorfman at MaxCDN. Today, BootstrapCDN is used by over 7.9 million sites delivering over 70 billion requests a month.

Previous maintainers:

Core Values

1. Security

We agree with StackPath, security should be built in, not bolted on.

  • Our DNS & CDN is managed by StackPath.
  • Our origin server is Amazon S3.
  • This website is hosted by Heroku.
  • We enforce 2-factor authentication on all services (including GitHub, MarkMonitor, AWS & Gmail).
  • Our production branch on GitHub is protected to prevent force pushing, prevent branches from being deleted, and require status checks to pass before merging.
  • Our domain is managed by MarkMonitor, an ICANN-accredited registrar and recognized industry leader since 1999. They have security measures in place such as registry locking and IP restrictions to help reduce security vulnerabilities and minimize the likelihood of successful domain hijacking.
  • By default we include Subresource Integrity (SRI) hashes when users copy a code snippet from this site.

2. Reliability

Reliable services require reliable people.

  • StackPath's network is monitored 24/7/365 and any incidents are posted to their status page in real-time.
  • Twitter is monitored for any mentions of the terms "BootstrapCDN", "#BootstrapCDN", "Bootstrap CDN".
  • There is someone always on call and has direct access to the StackPath support team via a private Slack channel. As mentioned above, we only use services that are secure & reliable.
  • Every Pull Request requires our whole test suite to pass. This includes checking every file we deliver, making ~26K tests in total, to make sure all of the HTTP headers are correct and the SRI hashes match.
  • If for some reason you are experiencing issues, please fill out our debug form.

3. Accessibility

We must do everything we can to make sure this service is accessible to all. We do that by providing IPv6 support, we are also whitelisted in Google AMP & the "Great Firewall of China".

Last but not least, we have Points of Presence (POPs) in North America, South America, Europe & Asia-Pacific region (view network map).

4. Sustainability

In May 2018, we created an organization on Open Collective. We use the collective for any money we make from ethical advertisements (CodeFund) and affiliate commissions (Themes and Books. This allows us to do the following:

  • Reimburse any expenses that are paid out of pocket.
  • Pay for any work that requires a lot of hours.
  • Rainy day fund for the unexpected.

Without the help of our in-kind partners (StackPath, this service would not be able to exist. Please support us by supporting them.