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cdnjs on new websites

Cloudflare-operated free public CDN that hosts open-source JavaScript and CSS libraries.

#2 of 37 in Package CDN In our data since Apr 2026 Last seen: Oct 16, 2026 Most recent launch: Sixty, Oct 16, 2026 Website: cdnjs.com

255,415 sites

249,913 found by StackScope, 5,502 via launch platforms

StackScope Wider Web 234,951 StackScope Discovery (Indie) 14,962 Product Hunt 4,716 PeerPush 286 Other 268 Hacker News 232
  • StackScope Wider Web 234,951
  • StackScope Discovery (Indie) 14,962
  • Product Hunt 4,716
  • PeerPush 286
  • Other 268
  • Hacker News 232
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web

About 1 in 25 websites that went live in the last 30 days use cdnjs (3.6%).

These figures cover websites that went live since April 2026, not the web as a whole.

Stackdar alerts

Get told when a new site ships with cdnjs.

69,017 new sites with cdnjs first seen in the last 30 days.

Stackdar watches every launch we detect and sends you the ones using cdnjs, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

Share of new sites using cdnjs

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026.

3.5%
last 7 days
-0.1pp vs prior week
3.6%
30 days to Oct 15
-1.0pp vs 30 days before
255,415
sites all time
since Apr 2026
cdnjs daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 10 September 2026: we improved our infrastructure to index new sites much sooner, often on the day they go live, so the cohort this share is measured against changes here. 7% 3% 0% Apr May Jun Jul Aug Sep Oct Weekly averages before this point, daily after. Jul 18 · 1391 / 24609 = 5.7% Jul 19 · 1499 / 27593 = 5.4% Jul 20 · 1228 / 23834 = 5.2% Jul 21 · 1257 / 22939 = 5.5% Jul 22 · 1256 / 24370 = 5.2% Jul 23 · 883 / 18096 = 4.9% Jul 24 · 691 / 13976 = 4.9% Jul 25 · 436 / 9549 = 4.6% Jul 26 · 1127 / 21745 = 5.2% Jul 27 · 1813 / 37226 = 4.9% Jul 28 · 2311 / 41880 = 5.5% Jul 29 · 2618 / 53556 = 4.9% Jul 30 · 2336 / 48247 = 4.8% Jul 31 · 2994 / 56047 = 5.3% Aug 1 · 2871 / 54880 = 5.2% Aug 2 · 2890 / 53845 = 5.4% Aug 3 · 2967 / 52612 = 5.6% Aug 4 · 2215 / 40700 = 5.4% Aug 5 · 1880 / 35345 = 5.3% Aug 6 · 1952 / 39147 = 5.0% Aug 7 · 1920 / 40246 = 4.8% Aug 8 · 2125 / 42802 = 5.0% Aug 9 · 1681 / 37772 = 4.5% Aug 10 · 1589 / 32322 = 4.9% Aug 11 · 1856 / 34554 = 5.4% Aug 12 · 1786 / 37131 = 4.8% Aug 13 · 2794 / 55464 = 5.0% Aug 14 · 2881 / 56751 = 5.1% Aug 15 · 2906 / 55905 = 5.2% Aug 16 · 2875 / 56267 = 5.1% Aug 17 · 2081 / 45391 = 4.6% Aug 18 · 2789 / 56519 = 4.9% Aug 19 · 2444 / 51663 = 4.7% Aug 20 · 3418 / 68939 = 5.0% Aug 21 · 4622 / 93833 = 4.9% Aug 22 · 5035 / 94184 = 5.3% Aug 23 · 4549 / 93580 = 4.9% Aug 24 · 4080 / 81702 = 5.0% Aug 25 · 3692 / 71523 = 5.2% Aug 26 · 3421 / 66852 = 5.1% Aug 27 · 4222 / 87822 = 4.8% Aug 28 · 4119 / 87900 = 4.7% Aug 29 · 4332 / 88057 = 4.9% Aug 30 · 4595 / 100664 = 4.6% Aug 31 · 4336 / 100233 = 4.3% Sep 1 · 4681 / 103410 = 4.5% Sep 2 · 4807 / 108908 = 4.4% Sep 3 · 4821 / 103273 = 4.7% Sep 4 · 4569 / 98525 = 4.6% Sep 5 · 4632 / 102849 = 4.5% Sep 6 · 4115 / 89270 = 4.6% Sep 7 · 4205 / 86115 = 4.9% Sep 8 · 3398 / 77960 = 4.4% Sep 9 · 3499 / 75504 = 4.6% Sep 10 · 3554 / 83627 = 4.2% Sep 11 · 3590 / 85538 = 4.2% Sep 12 · 2382 / 56758 = 4.2% Sep 13 · 2169 / 57984 = 3.7% Sep 14 · 2044 / 59221 = 3.5% Sep 15 · 2295 / 58178 = 3.9% Sep 16 · 2245 / 58891 = 3.8% Sep 17 · 2114 / 56736 = 3.7% Sep 18 · 2004 / 53075 = 3.8% Sep 19 · 1719 / 45261 = 3.8% Sep 20 · 1541 / 44745 = 3.4% Sep 21 · 1900 / 51656 = 3.7% Sep 22 · 2107 / 55396 = 3.8% Sep 23 · 2312 / 58298 = 4.0% Sep 24 · 2027 / 53448 = 3.8% Sep 25 · 1940 / 50749 = 3.8% Sep 26 · 3887 / 101511 = 3.8% Sep 27 · 1736 / 52126 = 3.3% Sep 28 · 2088 / 61097 = 3.4% Sep 29 · 2718 / 77839 = 3.5% Sep 30 · 2568 / 69702 = 3.7% Oct 1 · 2596 / 69212 = 3.8% Oct 2 · 2364 / 64659 = 3.7% Oct 3 · 1973 / 53720 = 3.7% Oct 4 · 1671 / 52039 = 3.2% Oct 5 · 2289 / 63678 = 3.6% Oct 6 · 2730 / 67571 = 4.0% Oct 7 · 2530 / 67635 = 3.7% Oct 8 · 2434 / 69285 = 3.5% Oct 9 · 2563 / 70262 = 3.6% Oct 10 · 2087 / 60621 = 3.4% Oct 11 · 2207 / 65581 = 3.4% Oct 12 · 2384 / 66602 = 3.6% Oct 13 · 2458 / 70810 = 3.5% Oct 14 · 2455 / 70598 = 3.5% Oct 15 · 3370 / 93141 = 3.6%
Mar 30, 2026 90 days Oct 15, 2026

The shaded areas were measured against a different set of sites, so the line can step there without cdnjs itself changing.

Coverage details

Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.

Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.

Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

What kind of sites use cdnjs

71,032 sites with a known type, all time

E-commerce
21.1%
Health
14.0%
Education
11.0%
Finance
9.7%
Developer Tools
7.2%
Productivity
6.7%
Marketing
6.4%
Content
5.1%
Games
4.9%
Social
3.4%
Design
2.9%
AI
2.9%
Hiring & HR
2.1%
Crypto
2.0%
Directory
0.6%

Domain endings using cdnjs

255,370 sites, all time

  • .com 56.9%
  • .in 8.6%
  • .online 4.8%
  • .site 3.6%
  • .org 3.3%
  • .net 2.0%
  • .uk 2.0%
  • .xyz 1.8%
  • .store 1.7%
  • .fr 1.6%
  • .me 1.5%
  • .app 1.4%
  • .co 1.1%
  • .ca 0.9%
  • .dev 0.7%

Country

Country likely for 52,478 of 255,415 sites (20.5%), all time.

How we know

Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.

  • India India 29.7%
  • Japan Japan 15.9%
  • United States United States 10.5%
  • United Kingdom United Kingdom 8.8%
  • France France 8.0%
  • South Korea South Korea 3.6%
  • Canada Canada 2.9%
  • Brazil Brazil 2.8%
  • Türkiye Türkiye 1.6%
  • Australia Australia 1.5%
  • Vietnam Vietnam 1.2%
  • Poland Poland 1.1%
  • Sweden Sweden 1.0%
  • Switzerland Switzerland 0.9%
  • Netherlands Netherlands 0.8%

Green hosting

5,500 checked sites since Apr 2026.

What this means

The share whose web host The Green Web Foundation lists as running on green energy, against the average for every new site we checked.

  • cdnjs 50%
  • Average 47%

Package CDN leaders

Tool % of sitesall time % of categoryall time
#1 ▲1 jsDelivr 4.4% 48.5%
#2 ▼1 cdnjs Current page 4.4% 48.3%
#3 – unpkg 1.7% 18.7%
#4 – Google Hosted Libraries 1.0% 10.5%
#5 ▼1 esm.sh <0.1% 0.4%

Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Package CDN tool.cdnjs is typically used alongside jsDelivr rather than instead of it. All 37 in Package CDN → Related categories: CDN

Often used with

Tool Sites vs all new sites
Font Awesome 175,362 10x
jsDelivr 74,456 6.6x
jQuery 89,786 2.5x

Tools that turn up far more often on cdnjs sites than on new sites in general, and how many times as common each one is there.

Recent launches using cdnjs

20,464 of the 255,415 sites using cdnjs are product launches we list individually. The other 234,951 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works

Sixty Oct 16, 2026 Also detected Cloudflare Google Fonts Three.js Can I Fly Today? · Field report Oct 16, 2026 Also detected Cloudflare Google Fonts Leaflet SunCalc RoomMate — La colocation organisée Oct 16, 2026 · Productivity Also detected React Netlify Google Fonts Leaflet vibecading | Vibe CADing: describe what you need, get real, editable CAD geometry back Oct 16, 2026 Also detected GitHub Pages Jekyll AnchorJS Cloudflare DNS Secret Puzzle Oct 16, 2026 · Games Also detected Cropper.js Google Fonts Google Search Console jsDelivr Accessible Weather Oct 16, 2026 Also detected Cloudflare SunCalc Umami Học tiếng Anh THCS miễn phí | Learn English with me Oct 16, 2026 · Education Also detected Cloudflare Grouply by PMP · Generador de grupos equilibrados Oct 16, 2026 Also detected Netlify Alpine.js Font Awesome Google Fonts Caotang | caotang Oct 16, 2026 · Content Also detected GitHub Pages Jekyll AnchorJS Cloudflare DNS FragDudes Oct 16, 2026 · Games Also detected Google Fonts Hostinger jsDelivr Supabase NettTools — 100% Free Serverless Online Web Tools & Utilities Hub Oct 16, 2026 · Productivity Also detected Cloudflare Font Awesome Google Fonts Tailwind CSS Convertisseur Markdown Oct 16, 2026 · Productivity Also detected Apache DOMPurify Google Fonts jsDelivr

Showing the most recent 12 of 20,464.

The StackScope API serves all 255,415 sites using cdnjs, filterable and exportable, from £15 a month.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.