Homies be ScaleScale, Bootstrap, Real Python, nixCraft & Fort Awesome. Mad Love - Curated tweets by getBootstrapCDN. The folks over at MaxCDN graciously provide CDN support for Bootstrap's CSS and JavaScript. Just use these Bootstrap CDN links. Stackpath now owns MaxCDN services, but you can still use their CDN link to host bootstrap CSS and JS files on MaxCDN. As you can see in the speed test result that MaxCDN has been fast in several locations except a few. Many users already have downloaded Bootstrap 4 from MaxCDN when visiting another site. As a result, it will be loaded from cache when they visit your site, which leads to faster loading time. Also, most CDN's will make sure that once a user requests a file from it, it will be served from the server closest to them, which also leads to faster loading time.
If you are a web developer and coding your website on bootstrap framework, then it is always great to use CDN link for the bootstrap files. We use bootstrap because it is lightweight and customizable. Not only this bootstrap is compatible with almost all major browsers and is responsive in nature. So, we can say that Bootstrap is readymade and open-source framework to build a quick website design.
First of all, we need to understand why we need a bootstrap CDN link in the first place. A Bootstrap CSS is a type of HTML file which is responsible for the overall design, and it loads whenever a user tries to open a webpage. So, in order to minimize this continuous load from the primary server, we use a CDN link of this CSS file. Because Bootstrap is a very popular framework, there are many CDN links available. Moreover, all the listed CDN links have SSL enabled (secured) and are also minified (takes less size).
Here are some of the fastest Bootstrap 4 CDN link
CSS Minified Link
JS Minified Link
The fastest Bootstrap CDN link is provided by Microsoft Ajax (a premium CDN network) according to our test results. I would highly recommend you to go with Microsoft CDN links because the performance has been stable in major locations worldwide. It beats Cloudflare in terms of CDN latency time and full load time.
CSS Minified Link
JS Minified Link
Cloudflare has the second fastest bootstrap CDN link (as compared to Microsoft Ajax CDN) which servers the latest 4.3 version. Cloudflare is free and servers the JS and CSS files from its 165 data-center around the globe. Here is the speed test result of Cloudflare CDN.
CSS Minified Link
JS Minified Link
Stackpath is one of the globally known and new CDN networks. You can take advantage of Stackpath by hosting the Bootstrap files in Stackpath servers. It serves your CDN files from 45 Edge Locations worldwide so that you don’t feel any connectivity issue and get lower latency possible.
CSS Minified Link
JS Minified Link
Stackpath now owns MaxCDN services, but you can still use their CDN link to host bootstrap CSS and JS files on MaxCDN. As you can see in the speed test result that MaxCDN has been fast in several locations except a few.
CSS Minified Link
JS Minified Link
NetDNA has a promising bootstrap CDN links which have a fast loading speed across various locations. However, the main concern with NetDNA is the latency time in few regions and it performs very poorly. If you want to serve your website files in limited locations (mentioned as green locations) then you can go with the NetDNA CDN link.
So these are the fastest free bootstrap CDN links that are quite promising and widely used. If you are looking for more free WordPress CDN or maybe the best image CDN services, click on the links.