What is cdnjs?

CDN

cdnjs is a content delivery network (CDN): Free open-source CDN by Cloudflare. Tech Stack Detector identifies cdnjs on any website by analysing script URLs and stylesheet and link tags.

cdnjs is a content delivery network (CDN) (CDN), detected on 34 websites in our index. See websites using cdnjs ↓

CategoryCDN
Official sitecdnjs.com
Detection signals2 signals
In our index34 websites

How Tech Stack Detector detects cdnjs

cdnjs is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.

  • Script Srccdnjs script source
  • Link Hrefcdnjs stylesheet

Websites using cdnjs

Recently scanned websites where we detected cdnjs. Open one to see its full technology stack.

appybrain.pt12 technologies · 2 h ago araco.com.bd11 technologies · 3 h ago muraddrivingschool.co.uk5 technologies · 3 h ago cocoonsangli.in8 technologies · 7 h ago www.relate.kr13 technologies · 7 h ago www.schrodingo.in11 technologies · 10 h ago chittortech.in13 technologies · 12 h ago syaratc.online13 technologies · 14 h ago tradebib.com4 technologies · 18 h ago trancedk.me5 technologies · 21 h ago karhi.fi7 technologies · 2 d ago www.heroku.com12 technologies · 2 d ago muthalcorporation.pages.dev5 technologies · 2 d ago boom.tech6 technologies · 3 d ago ilahitravels.com12 technologies · 3 d ago vinayakamissions.edu.in9 technologies · 4 d ago topwebpositions.com6 technologies · 4 d ago www.digibundles.in9 technologies · 6 d ago

View all websites using cdnjs

Often used with cdnjs

Technologies most frequently detected alongside cdnjs across scanned websites.

Font AwesomeFont22 sitesGoogle FontsFont20 sitesBootstrapUI Library20 sitesPHPLanguage15 sitesjQueryUI Library15 sitesCloudflareCDN12 sitesjsDelivrCDN11 sitesGoogle Tag ManagerAnalytics10 sites

Alternatives to cdnjs

Other CDN technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.

CloudflareCDN247 sitesjsDelivrCDN28 sitesFastlyCDN27 sitesAmazon CloudFrontCDN17 sitesAkamaiCDN14 sitesUNPKGCDN13 sitesGoogle Hosted LibrariesCDN7 sitesBunny.netCDN1 siteKeyCDNCDN

Compare cdnjs

Side-by-side comparisons of cdnjs with other CDN technologies.

cdnjs vs Cloudflare cdnjs vs jsDelivr cdnjs vs Fastly cdnjs vs Amazon CloudFront cdnjs vs Akamai

Popular technologies

The technologies most often detected across all websites scanned on Tech Stack Detector.

CloudflareCDN247 sitesGoogle FontsFont215 sitesTailwind CSSUI Library170 sitesReactFramework165 sitesProgressive Web AppOther147 sitesPHPLanguage139 sitesNode.jsLanguage136 sitesNext.jsFramework124 sitesBootstrapUI Library119 sitesGoogle WorkspaceOther110 sites

Frequently asked questions

What is cdnjs?

cdnjs is a content delivery network (CDN): Free open-source CDN by Cloudflare. Tech Stack Detector identifies cdnjs on any website by analysing script URLs and stylesheet and link tags. Its official website is https://cdnjs.com.

How can I tell if a website uses cdnjs?

Enter any URL into Tech Stack Detector and it reports whether cdnjs is present, with a confidence score and the exact evidence it matched. Detection is based on script URLs and stylesheet and link tags. No login or crawling of the site is required.

How many websites use cdnjs?

cdnjs has been detected on 34 websites in the public Tech Stack Detector scan index. This reflects sites that visitors have analysed here, not global market share.

What are some alternatives to cdnjs?

Other CDN technologies Tech Stack Detector detects include Cloudflare, jsDelivr, Fastly, Amazon CloudFront, Akamai and UNPKG. You can compare any of them side by side with cdnjs.

Data last updated October 20, 2026 · based on 618 recently scanned websites.