⚡ Legacy Technologies in China

Legacy technologies are platforms and tools that have been discontinued or shut down and no longer operate. Some are completely defunct, while others remain functional but unsupported.

China is an East Asian country with a population of around 1.4 billion people.

According to our data, legacy technologies are detected on 19.7% of websites from China.

Statistics based on 84K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top legacy technologies in China in 2026, based on market share.

The most popular is Owl Carousel with a share of 27%, followed by ASP with 21.4% and jQuery LazyLoad with 12.4%.

Owl Carousel 27%
ASP 21.4%
jQuery LazyLoad 12.4%
jQuery Cookie 10.7%
Skype 9.9%
Adobe Flash 8.5%
jQuery Mousewheel 6.5%
Magnific Popup 5.4%
CentOS 2%
Moment.js 1.8%
SWFObject 1.6%
MSHTML 1.2%
AddThis 1.1%
iScroll 0.9%
Messenger Customer Chat 0.8%

🚀 Highlights

Here is a list of the top technologies that are more popular in China than worldwide.
Differences between global and country rankings are shown in parentheses.

2. ASP ^(-8)
3. jQuery LazyLoad ^(-13)
5. Skype ^(-13)
6. Adobe Flash ^(-1)
9. CentOS ^(-4)
11. SWFObject ^(-10)
12. MSHTML ^(-37)
14. iScroll ^(-15)
15. Messenger Customer Chat ^(-2)
16. AngularJS ^(-3)

✨ Best Legacy Technologies

Below is a more detailed list of the top 25 of the 71 legacy technologies used on sites from China, ranked by their market share.

Rank	Name	Market share
1	Owl Carousel Germany A deprecated open-source jQuery plugin for creating responsive, touch-enabled, and accessible carousel sliders. FreeOpen sourceLegacy	27%
2	ASP Redmond, Washington, United States A server-side scripting language and dynamic web page engine. FreeLegacy	21.4%
3	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	12.4%
4	jQuery Cookie A deprecated jQuery plugin for reading, writing and deleting cookies. FreeOpen sourceLegacy	10.7%
5	Skype Redmond, Washington, United States A communications platform for voice and video calls and sending instant messages that was retired on May 5, 2025 in favor of Microsoft Teams. FreeLegacy	9.9%
6	Adobe Flash San Jose, California, United States A discontinued multimedia software platform for creating animations and interactive apps. Legacy	8.5%
7	jQuery Mousewheel A jQuery plugin that adds cross-browser mouse wheel support. FreeOpen sourceLegacy	6.5%
8	Magnific Popup A responsive lightbox and dialog plugin for jQuery and Zepto.js. FreeOpen sourceLegacy	5.4%
9	CentOS Raleigh, North Carolina, United States A discontinued open-source Linux distribution compatible with RHEL. Legacy	2%
10	Moment.js San Francisco, California, United States An open-source JavaScript library for parsing, validating, manipulating, and formatting dates. FreeOpen sourceLegacy	1.8%
11	SWFObject A deprecated framework for detecting the Adobe Flash Player plugin and embedding Flash files. FreeOpen sourceLegacy	1.6%
12	MSHTML Redmond, Washington, United States An editor based on the MSHTML component of the discontinued Internet Explorer browser. Legacy	1.2%
13	AddThis Austin, Texas, United States A social bookmarking service that discontinued its services on May 31, 2023. FreeLegacy	1.1%
14	iScroll A high-performance JavaScript library for smooth scrolling. FreeOpen sourceLegacy	0.9%
15	Messenger Customer Chat Menlo Park, California, United States The website chat widget from Meta that was retired in May 2024. Legacy	0.8%
16	AngularJS Mountain View, California, United States A discontinued open-source web framework from Google that has been superseded by Angular. FreeOpen sourceLegacy	0.7%
17	MIP Beijing, China An open mobile-page framework created by Baidu as an alternative to Google's AMP for delivering fast-loading pages on mobile devices. Legacy	0.7%
18	Prefix-free A legacy script that adds browser prefixes to CSS code when needed for old browsers. FreeOpen sourceLegacy	0.6%
19	Skrollr Standalone parallax scrolling JavaScript library for mobile (Android, iOS) and desktop in about 12k minified. FreeOpen sourceLegacy	0.6%
20	Picturefill A responsive image polyfill for <picture>, srcset, sizes, and more. FreeOpen sourceLegacy	0.5%
21	iLightBox A commercial jQuery lightbox plugin. $16+Legacy	0.4%
22	Google Webmaster Tools Mountain View, California, United States The old Google Webmaster Tools, detected by the meta name "verify-v1", which have been deprecated in favor of Google Search Console. FreeLegacy	0.4%
23	Alexa Seattle, Washington, United States A web traffic analysis service from Amazon that was discontinued in 2022. Legacy	0.3%
24	Facebook Like Menlo Park, California, United States A social plugin that allowed websites to embed a button for visitors to like and share web pages on Facebook. Legacy	0.3%
25	Google Optimize Mountain View, California, United States A free website optimization tool integrated with Google Ads that enabled A/B, multivariate, and redirect landing page testing. Legacy	0.3%

👉 See Also

🌎 Legacy in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 84,859 websites from China.
We currently track the presence of 124 legacy technologies across the web.
Of these, 71 were detected on websites from China.
Statistics were last calculated on August 4, 2026.
For more details, see our methodology and disclaimer.