iframe-resizer on new websites

1. iframe-resizer appeared on about 360 new sites in the last 30 days.^[1]
2. Almost all new iframe-resizer sites also use PHP.
3. It is unusually common on .org domains: 45% of the domains running it, against 3.4% of domains across new sites.

The line is the 7-day average share of new sites that use iframe-resizer, 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	6.0%	14.5%
4	–	TanStack Router	4.4%	10.8%
5	–	Swiper	3.4%	8.2%
…
128	▼13	iframe-resizer	<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. iframe-resizer is typically used alongside jQuery rather than instead of it. Among September launches it ranked #134 in Javascript Library, down from #121 in August. All 1551 in Javascript Library

Tool	Sites with both	vs all new sites	Bar
GiveWP	1,350	3657x
Yjs	1,167	1573x
Moment.js	1,247	319x
Contact Form 7	523	19x
Elementor	958	13x

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

7 of the 1,437 sites using iframe-resizer are product launches we list individually. The other 1,430 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
Untitled site removevideoback.com	Oct 1
StrateGen (AI-Powered Strategy Consultant) strategen.dev	Sep 30
Life ID — Is that plant in your yard dangerous? getlifeid.com	Sep 23
大温独居资源与邻里连结平台 | BC省互助公益网站 mykindbridge.ca	Aug 6
m3iar.net m3iar.net	Jul 16
Untitled site gaisha.ai	Jul 15
Analyvin — Commerce7 Data Intelligence analyvin.app	Jul 9

Watches, exports and the API give you all 1,437 sites using iframe-resizer, 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.