⚡ Legacy Technologies in Belgium

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.

Belgium is a Western European country with a population of over 12 million people.

According to our data, legacy technologies are detected on 22% of websites from Belgium.

Statistics based on 31K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is Owl Carousel with a share of 24.2%, followed by Magnific Popup with 19.9% and Google URL Shortener with 13%.

Owl Carousel 24.2%
Magnific Popup 19.9%
Google URL Shortener 13%
jQuery Mousewheel 10.9%
jQuery Cookie 9.8%
Moment.js 7.4%
AddThis 4.2%
Facebook Like 3.4%
iLightBox 2.9%
Skrollr 2.7%
Picturefill 2.5%
Polymer 2.2%
Adobe Flash 2.1%
ASP 2%
Google Webmaster Tools 1.8%

🚀 Highlights

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

4. jQuery Mousewheel ^(-1)
7. AddThis ^(-3)
9. iLightBox ^(-2)
10. Skrollr ^(-2)
11. Picturefill ^(-2)
12. Polymer ^(-5)
15. Google Webmaster Tools ^(-4)
16. AngularJS ^(-2)
17. Google Optimize ^(-7)
18. Oribi ^(-15)

✨ Best Legacy Technologies

Below is a more detailed list of the top 25 of the 85 legacy technologies used on sites from Belgium, 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	24.2%
2	Magnific Popup Kyiv, Ukraine A responsive lightbox and dialog plugin for jQuery and Zepto.js. FreeOpen sourceLegacy	19.9%
3	Google URL Shortener Mountain View, California, United States A deprecated link service from Google. Legacy	13%
4	jQuery Mousewheel San Francisco, California, United States A jQuery plugin that adds cross-browser mouse wheel support with delta normalization. FreeOpen sourceLegacy	10.9%
5	jQuery Cookie Germany A deprecated jQuery plugin for reading, writing and deleting cookies. FreeOpen sourceLegacy	9.8%
6	Moment.js San Francisco, California, United States An open-source JavaScript library for parsing, validating, manipulating, and formatting dates. FreeOpen sourceLegacy	7.4%
7	AddThis Austin, Texas, United States A social bookmarking service that discontinued its services on May 31, 2023. FreeLegacy	4.2%
8	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	3.4%
9	iLightBox A commercial jQuery lightbox plugin. $16+Legacy	2.9%
10	Skrollr Standalone parallax scrolling JavaScript library for mobile (Android, iOS) and desktop in about 12k minified. FreeOpen sourceLegacy	2.7%
11	Picturefill Boston, Massachusetts, United States A responsive image polyfill for <picture>, srcset, sizes, and more. FreeOpen sourceLegacy	2.5%
12	Polymer Mountain View, California, United States A legacy open-source JavaScript library created by Google for building components based on Web Components standards. FreeOpen sourceLegacy	2.2%
13	Adobe Flash San Jose, California, United States A discontinued multimedia software platform for creating animations and interactive apps. Legacy	2.1%
14	ASP Redmond, Washington, United States A server-side scripting language and dynamic web page engine. FreeLegacy	2%
15	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	1.8%
16	AngularJS Mountain View, California, United States A discontinued open-source web framework from Google that has been superseded by Angular. FreeOpen sourceLegacy	1.7%
17	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	1.6%
18	Oribi Mountain View, California, United States An all-in-one marketing analytics solution acquired by LinkedIn. Legacy	1.5%
19	Messenger Customer Chat Menlo Park, California, United States The website chat widget from Meta that was retired in May 2024. Legacy	1.2%
20	jQuery LazyLoad Finland A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	1.1%
21	Microsoft Invest Redmond, Washington, United States A demand-side ad management platform created after Microsoft's acquisition of Xandr to facilitate programmatic media buying. Legacy	1.1%
22	CentOS Raleigh, North Carolina, United States A discontinued open-source Linux distribution compatible with RHEL. Legacy	1.1%
23	SWFObject A deprecated framework for detecting the Adobe Flash Player plugin and embedding Flash files. FreeOpen sourceLegacy	1.1%
24	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	1%
25	Oracle Moat Austin, Texas, United States A measurement and marketing analytics suite designed to measure media performance across digital and TV advertising campaigns. Legacy	0.9%

👉 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 31,873 websites from Belgium.
We currently track the presence of 130 legacy technologies across the web.
Of these, 85 were detected on websites from Belgium.
Statistics were last calculated on September 18, 2026.
For more details, see our methodology and disclaimer.