Cloudflare vs jsDelivr

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

CDN, DDoS protection, and security services.

Category
CDN
Detection signals
4
In our index
249 websites
Official site
cloudflare.com
Learn more about Cloudflare

Free CDN for open-source packages.

Category
CDN
Detection signals
2
In our index
29 websites
Official site
jsdelivr.com
Learn more about jsDelivr

Used together

12 websites in our index use both Cloudflare and jsDelivr, so they aren't always an either/or choice.

How Tech Stack Detector detects each

Cloudflare

  • HeaderCF-Ray header is Cloudflare-specific
  • HeaderServer: cloudflare
  • HeaderCF-Cache-Status header
  • DNSCloudflare nameservers

jsDelivr

  • Script SrcjsDelivr script source
  • Link HrefjsDelivr stylesheet

Websites using each

Frequently asked questions

What is the difference between Cloudflare and jsDelivr?

Cloudflare is a content delivery network (CDN) (CDN, DDoS protection, and security services), while jsDelivr is a content delivery network (CDN) (Free CDN for open-source packages). Both are CDN technologies, so they are often considered alternatives.

Can a website use both Cloudflare and jsDelivr?

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

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