⚡ Legacy Technologies in Japan

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.

Japan is an East Asian country with a population of around 125 million people.

According to our data, legacy technologies are detected on 20.5% of websites from Japan.

Statistics based on 160K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is jQuery Cookie with a share of 24.8%, followed by Google URL Shortener with 14.3% and CentOS with 11.4%.

jQuery Cookie 24.8%
Google URL Shortener 14.3%
CentOS 11.4%
jQuery Mousewheel 9.6%
Magnific Popup 8.3%
iScroll 6.6%
Adobe Flash 4.7%
Picturefill 4.4%
jQuery LazyLoad 3.5%
Google Webmaster Tools 2.9%
Polymer 2.7%
Facebook Like Box 2.4%
IBM WebSphere Homepage Builder 2.2%
Pocket Button 2%
Other 0.2%

🚀 Highlights

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

1. jQuery Cookie ^(-1)
2. Google URL Shortener ^(-1)
3. CentOS ^(-7)
6. iScroll ^(-20)
8. Picturefill ^(-4)
9. jQuery LazyLoad ^(-4)
10. Google Webmaster Tools ^(-6)
12. Facebook Like Box ^(-8)
13. IBM WebSphere Homepage Builder ^(-41)
14. Pocket Button ^(-38)

✨ Best Legacy Technologies

Below is a more detailed list of the top 25 of the 88 legacy technologies used on sites from Japan, ranked by their market share.

Rank	Name	Market share
1	jQuery Cookie A deprecated jQuery plugin for reading, writing and deleting cookies. FreeOpen sourceLegacy	24.8%
2	Google URL Shortener Mountain View, California, United States A deprecated link service from Google. Legacy	14.3%
3	CentOS Raleigh, North Carolina, United States A discontinued open-source Linux distribution compatible with RHEL. Legacy	11.4%
4	jQuery Mousewheel A jQuery plugin that adds cross-browser mouse wheel support. FreeOpen sourceLegacy	9.6%
5	Magnific Popup A responsive lightbox and dialog plugin for jQuery and Zepto. FreeOpen sourceLegacy	8.3%
6	iScroll A high-performance JavaScript library for smooth scrolling. FreeOpen sourceLegacy	6.6%
7	Adobe Flash San Jose, California, United States A discontinued multimedia software platform for creating animations and interactive apps. Legacy	4.7%
8	Picturefill A responsive image polyfill for , srcset, sizes, and more. FreeOpen sourceLegacy	4.4%
9	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	3.5%
10	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	2.9%
11	Polymer A library for creating encapsulated, reusable web components. FreeOpen sourceLegacy	2.7%
12	Facebook Like Box Menlo Park, California, United States A plugin that allowed admins to promote their Facebook Pages and embed a simple feed of content from a Page into other sites. Legacy	2.4%
13	IBM WebSphere Homepage Builder Armonk, New York, United States A WYSIWYG HTML editor for Windows and Linux that was available until the mid-2000s. Legacy	2.2%
14	Pocket Button Mountain View, California, United States Allowed users to save content to Pocket, a social bookmarking service that shut down in 2025. FreeLegacy	2%
15	SWFObject A deprecated framework for detecting the Adobe Flash Player plugin and embedding Flash files. FreeOpen sourceLegacy	1.9%
16	Google +1 Button Mountain View, California, United States The sharing button code for the discontinued Google +1 service. Legacy	1.3%
17	Google Funding Choices Mountain View, California, United States A messaging tool for GDPR and CCPA compliance and ad blocking recovery. Legacy	1.2%
18	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	1.1%
19	ASP Redmond, Washington, United States A server-side scripting language and dynamic web page engine. FreeLegacy	1%
20	AddThis Austin, Texas, United States A social bookmarking service that discontinued its services on May 31, 2023. FreeLegacy	0.9%
21	Shadowbox A lightbox library for photos and videos, last released in 2014. FreeOpen sourceLegacy	0.9%
22	RawGit Portland, Oregon, United States A public CDN for serving files from raw.githubusercontent.com with the correct content types. FreeLegacy	0.7%
23	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.6%
24	Skrollr Standalone parallax scrolling JavaScript library for mobile (Android, iOS) and desktop in about 12k minified. FreeOpen sourceLegacy	0.6%
25	FC2 Analyzer Las Vegas, Nevada, United States A web analytics service from FC2, Inc., that was discontinued in June 2025. FreeLegacy	0.5%

👉 See Also

🌎 Legacy in other countries
- China
- Korea
- Taiwan

🗃️ 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 160,338 websites from Japan.
We currently track the presence of 117 legacy technologies across the web.
Of these, 88 were detected on websites from Japan.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.