simpleheat on new websites

1. simpleheat appeared on about 78 new sites in the last 30 days.^[1]
2. Half of new simpleheat sites also use Leaflet.

The line is the 7-day average share of new sites that use simpleheat, 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%
…
236	▼27	simpleheat	<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 #248 in Javascript Library, down from #221 in August. All 1565 in Javascript Library

Tool	Sites with both	vs all new sites	Bar
Leaflet	195	138x
unpkg	143	23x

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

160 of the 375 sites using simpleheat are product launches we list individually. The other 215 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
AVIAN Flight Intelligence | Bird Migration & Aviation Weather avianflightintelligence.com	Oct 21
BLUEScan: The Leading Identity-Driven Engagement Platform bluescan.ai · Marketing	Oct 21
SUELOO — ¿Qué puedes hacer en este terreno? · Guayaquil suelooec.com	Oct 19
TownView: where your town's money goes townview.org	Oct 18
iPalaeo — A field notebook through deep time ipalaeo.com	Oct 17
Rut & Route | Idaho Deer & Elk Map rutandroute.com	Oct 16
St. Louis Crash Map stlcrashmap.com	Oct 16
Easy Map Creator — Plot Addresses on a Heat Map easymapcreator.com	Oct 15
Tech Funding Map | European startup funding rounds techfundingmap.com	Oct 12
UrbanMesh · Kilimani urbanmesh.space	Oct 11
Zgłoś Dzika — społecznościowa mapa dzików zglosdzika.pl · Poland	Oct 11
CaminhoLivre — Mapa de roubo de motos e carros em SP caminholivre.com.br · Marketing · Brazil	Oct 11

Showing the most recent 12 of 160.

Watches, exports and the API give you all 375 sites using simpleheat, 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.