Cloudflare-operated free public CDN that hosts open-source JavaScript and CSS libraries.
Get told when a new site ships with cdnjs.
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 work124,758 sites
120,449 found by StackScope, 4,309 via launch platforms
- StackScope Wider Web 112,862
- StackScope Discovery (Indie) 7,587
- Product Hunt 3,817
- PeerPush 252
- Hacker News 180
- Other 60
cdnjs has been detected on 124,758 launches we've crawled. The 7-day rolling share is 4.9%, roughly steady week on week. Most recent detection: Bulk Replace - Batch Find & Replace Text and Code Across Thousands of Files | Windows Software, today.
It's most commonly paired with Google Fonts, Google Search Console, and Cloudflare. By product type, the launches using it are most often E-commerce (18%), Health (13%), and Education (12%). By estimated origin, the United States (28%) and India (27%) lead close together. By domain ending, launches using it are 4.1 times as likely as the average launch to live on a .store domain.
What kind of products ship with cdnjs
35,577 launches
Domain endings using cdnjs
123,633 sites
- .com 49.18%
- .in 11.39%
- .online 6.65%
- .site 5.02%
- .org 3.24%
- .xyz 2.64%
- .store 1.97%
- .app 1.94%
- .net 1.79%
- .me 1.73%
- .uk 1.69%
- .co 1.41%
- .ca 1.21%
- .dev 1.05%
- .space 1.05%
Country
720 of 124,758 sites, where we are confident of the country.
-
United States 28.06%
-
India 27.36%
-
United Kingdom 9.17%
-
Canada 3.47%
-
Australia 2.78%
-
Netherlands 2.64%
-
France 2.22%
-
Pakistan 1.81%
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United Arab Emirates 1.53%
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Spain 1.53%
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Israel 1.11%
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Japan 1.11%
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Germany 0.83%
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Poland 0.83%
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Romania 0.83%
Share of new sites using cdnjs
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
Package CDN leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
|
4.74% | 49.20% |
| #2 | ▼1 |
|
4.67% | 48.45% |
| #3 | – |
|
1.92% | 19.94% |
| #4 | – |
|
0.84% | 8.70% |
| #5 | – |
|
0.05% | 0.54% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Package CDN tool.cdnjs is typically used alongside jsDelivr rather than instead of it. All 35 in Package CDN →
Recent launches we can show
11,896 of the 124,758 sites using cdnjs are product launches we list individually. The other 112,862 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Showing the most recent 12 of 11,896.
The StackScope API serves all 124,758 sites using cdnjs, filterable and exportable, from £15 a month.