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jQuery CDN

releases.jquery.com

The jQuery CDN lists the latest stable build of each jQuery Core branch, plus jQuery UI, jQuery Mobile and QUnit. Each build has its own link.[1]

jQuery CDN is a content delivery network specifically designed to serve the popular jQuery JavaScript library. It allows developers to include jQuery in their websites without downloading and hosting the library on their own servers. By leveraging a CDN, websites can benefit from improved load times as users may already have the jQuery file cached from visits to other sites using the same CDN. jQuery CDN offers various versions of the library, allowing developers to choose the one that best suits their needs. It supports both HTTP and HTTPS protocols and provides fallback options to ensure the library is loaded even if the CDN is temporarily unavailable. This service is an excellent choice for developers looking to optimize their website's performance while using jQuery.

jQuery CDN belongs toCDNcategory.

What it hosts

Core, UI, Mobile and QUnit builds[1]

Branches

Latest stable build of each major branch[1]

Integrity checks

Subresource Integrity is the recommended way to load it[1]

Run by

The OpenJS Foundation and jQuery contributors[1]

89websites

use it — 3.5% of the 2,560 websites we scanned in the last 12 months

#9of 29

tools in its category seen in our scans (we recognize 69)

26public pages

on UptimeCard — open any of them to see how that site is doing

In short: Pin an exact version and add the integrity attribute when you load jQuery from this CDN.[2][1]

3.71% of all websites we track run jQuery CDN▼ 0.01 points since 20 Sep

Should you use jQuery CDN?

The 10-second version, from the vendor’s own pages and what we see in our scans

jQuery CDN fits if…

  • Sites that still use jQuery and want the files from the project itself.[1]
  • Pages that need an older branch, since the latest build of each major branch is listed.[1]

Look elsewhere if…

  • Projects that bundle their own JavaScript can take jQuery from the package manager instead.[3]
Other CDNs get new releases later, because the jQuery team does not control their schedules.[3]

Products

Projects listed on the CDN page

jQuery CDN

This page

The hosted builds page for the jQuery projects.[1]

jQuery Core

The core library, listed per major branch.[1]

jQuery UI

User interface widgets, listed for the current and legacy release families.[1]

jQuery Mobile

The touch-oriented framework with a single stable release listed.[1]

QUnit

The JavaScript unit testing framework.[1]

jQuery CDN versions

The newest release, the series that still gets fixes, and what changed

Latest release

4.0.0[4][5]

Released 18 Jan 2026

Maintained series

4

How jQuery CDN sites protect themselves

Share of the 89 sites we scanned that run each protection

HSTS46% · 41 sites

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS

reCAPTCHA30% · 27 sites

reCAPTCHA is a free service from Google that helps protect websites from spam and abuse

Protections add up, they do not replace each other: a site can run all of them.

What sites use jQuery CDN for

An estimate from UptimeCard's technology map of 20 public sites

Runs the whole site16 sites

2600hz.com · aiir.com · commzgate.com

Hosts help, docs or support content3 sites

domotz.com · scalingostatus.com · virtru.com

Runs the marketing site1 sites

threekit.com

Rough guide, not a measurement: each description is written automatically from the site’s technology stack and the site has not confirmed it. A site is counted once, in the first group its description fits (shop, help and docs, blog, marketing site; otherwise the whole site). Descriptions that only guess (“likely”, “may”) are left out.

At a glance

UptimeCard's own scans and tests of 2,560 websites · refreshed weekly

How jQuery CDN sites scoreout of 100 · hover or tap a score for details

50PerformanceLowaverage site: 5085AccessibilityGoodaverage site: 8996Best practicesGoodaverage site: 9389SEOGoodaverage site: 92

Page load time

Loads about 16% slower than the average site

jQuery CDN sites
5.0 s
All sites
4.3 s

Most jQuery CDN sites load in 3.4–6.0 s. Home page weight: 3.2 MB vs 3.3 MB for all sites. 24 public sites measured.

Where are they hosted?

Mostly Amazon Web Services and Cloudflare

  • Amazon Web Services23%
  • Cloudflare19%
  • Fastly8%
  • Incapsula8%
  • Other42%
United States 54%Canada 19%BG 4%

Who uses it?

Technology and Software is the biggest group

Technology and Software58%
Educational Resources12%
Business Services4%
Domain Registration and Hosting4%

Share of 26 classified public sites. “× average” compares with all 961 public sites.

How jQuery CDN sites are built

Closest partners. The number says how many times more often the tool runs on jQuery CDN sites than on an average website. Hover a partner for its share of sites.

OWL Carousel6×Slick5×cdnjs4×jsDelivr4×Bootstrap3×Font Awesome3×Apache HTTP Server2×HubSpot Analytics2×

Stacks we see most. Tools that tend to run together with jQuery CDN on the same websites. The percentage is the share of all 89 jQuery CDN sites that run the whole stack.

3 stacks · swipe, drag or use the arrows
#1

jQuery CDN + jsDelivr + Bootstrap + cdnjs + WordPress

5.6%5 of 89 sites
#2

jQuery CDN + cdnjs + Unpkg

4.5%4 of 89 sites
#3

jQuery CDN + WordPress + RankMath SEO

4.5%4 of 89 sites

Usually installed alongside

The bigger the bubble, the more of the 89 jQuery CDN sites also run the tool. Colour shows what the tool does. Hover or tap a bubble for details.

Google Analytics79%Facebook Pixel32%Linkedin Insight Tag15%Google Tag Manager70%HubSpot19%Cart Functionality15%Microsoft Advertising14%DoubleClick Floodlight12%Yoast SEO12%
AnalyticsTag managerMarketingOnline storeAdvertisingSearch visibility

Similar tools in its category

CDN: 69 tools known, 29 seen in our scans

How websites combine jQuery CDN with other tools

Relationships found on the websites that use it, from the same map status pages show.

Complements another tool 8Needs another tool 8Overlaps with another 8Integrates with another 3Built on a platform 1

Who is behind jQuery CDN

From its own pages and public records, with sources

Maintained by

OpenJS Foundation[1]

Its story

  1. 2013

    jQuery 2.0.0 files were published on the CDN. This branch dropped Internet Explorer 6, 7 and 8, so sites needing those browsers stayed on 1.x.[2]

  2. 2016

    jQuery 3.0 added a slim build without ajax and effects to the CDN. Sites that use other libraries for those jobs can load less code.[6]

  3. 2019

    jQuery 3.4.0 was expected to be the last minor release of the 3.x branch before the work on jQuery 4.0. Its files were served from the CDN first.[7]

  4. 2023

    jQuery 3.7.0 folded the Sizzle selector engine into jQuery itself. The library no longer depends on a separate Sizzle project.[8]

  5. 2026

    jQuery 4.0.0 is the first major release in almost ten years. It drops IE 10 and older and uses ES modules, and its files are on the CDN.[3]

Questions about jQuery CDN

Which jQuery versions can I load from this CDN?
The page lists the latest stable release of each major branch of jQuery Core, and also jQuery UI, jQuery Mobile and QUnit builds.[1]
Should I link to a version-less file?
No. The project advises that production sites request a specific version from any CDN.[2]
How many websites use jQuery CDN?
We found jQuery CDN on 89 of the 2,560 websites we scanned in the last 12 months (3.5%). 26 of them have a public status page.
What is jQuery CDN often used with?
Among the websites we scan, jQuery CDN is often found alongside Google Analytics (78.7% of its sites), PHP (49.4% of its sites), jsDelivr (44.9% of its sites).
What are the alternatives to jQuery CDN?
Other CDNs we recognize include Cloudflare, Amazon CloudFront, jsDelivr, cdnjs.

Is your website built with jQuery CDN?

UptimeCard checks it around the clock, tells you the minute it stops answering, and gives your visitors a status page.