WURFL.js on new websites

1. WURFL.js appeared on 13 new sites in the last 30 days.^[1]
2. Nine in ten new WURFL.js sites also use jQuery.

The line is the 7-day average share of new sites that use WURFL.js, since 10 September.

#	Movement	Tool	Share of all sites	Share of category[3]	Bar
1	–	jQuery	14.1%	34.4%
2	–	React Router	6.6%	16.2%
3	–	Motion	5.9%	14.5%
4	–	TanStack Router	4.4%	10.8%
5	–	Swiper	3.4%	8.2%
…
580	▲149	WURFL.js	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Javascript Library tool. Among September launches it ranked #514 in Javascript Library, up from #663 in August. All 1557 in Javascript Library

Tool	Sites with both	vs all new sites	Bar
jQuery	32	6.7x

Tools that turn up far more often on WURFL.js sites than on new sites in general, and how many times as common each one is there.

2 of the 34 sites using WURFL.js are product launches we list individually. The other 32 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
Loquy — Turn Your Book Into A Complete Video Course loquy.ai · Education	Aug 26
HomeDesignsAI homedesigns.ai · Design	Jun 5

Watches, exports and the API give you all 34 sites using WURFL.js, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
3. Some products people expect to see here are filed under a related category: UI Library.