cdnjs vs Fastly

cdnjs is a content delivery network (CDN) and Fastly is a content delivery network (CDN). Here's how they compare, how Tech Stack Detector detects each, and how many scanned websites use them.

Free open-source CDN by Cloudflare.

Category
CDN
Detection signals
2
In our index
35 websites
Official site
cdnjs.com
Learn more about cdnjs

Edge cloud platform and CDN.

Category
CDN
Detection signals
2
In our index
27 websites
Official site
fastly.com
Learn more about Fastly

Used together

2 websites in our index use both cdnjs and Fastly, so they aren't always an either/or choice.

How Tech Stack Detector detects each

cdnjs

  • Script Srccdnjs script source
  • Link Hrefcdnjs stylesheet

Fastly

  • HeaderFastly cache server header
  • HeaderFastly request ID header

Websites using each

Frequently asked questions

What is the difference between cdnjs and Fastly?

cdnjs is a content delivery network (CDN) (Free open-source CDN by Cloudflare), while Fastly is a content delivery network (CDN) (Edge cloud platform and CDN). Both are CDN technologies, so they are often considered alternatives.

Can a website use both cdnjs and Fastly?

Yes. Tech Stack Detector detects each technology independently when you scan a site, so a single page can report both cdnjs and Fastly when both are present.

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