Microsoft IIS on new websites

1. About 1 in 200 websites that went live in the last 30 days use Microsoft IIS (0.5%).^[1]
2. Nine in ten new Microsoft IIS sites also use ASP.NET.
3. It is unusually common on .it domains: 12% of the domains running it, against 0.19% of domains across new sites.

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

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	nginx	9.6%	37.4%
2	–	LiteSpeed Web Server	6.6%	25.9%
3	–	Apache	4.7%	18.3%
4	–	Caddy	3.0%	11.7%
5	–	OpenResty	0.9%	3.5%
…
7	–	Microsoft IIS	0.4%	1.6%

All-time shares across the new sites we track: of all of them, and of the sites using any Server tool. All 143 in Server

Tool	Sites with both	vs all new sites	Bar
ASP.NET	21,335	138x
Aruba DNS	5,735	117x
Plesk	6,690	36x
Bootstrap	5,581	5.3x
jsDelivr	3,171	3.0x

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

2,298 of the 24,504 sites using Microsoft IIS are product launches we list individually. The other 22,206 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
Creativity Business Solution creativitybusinesssolution.com · Productivity	Oct 20
Grade by Grade gradebygrade.org · Education	Oct 20
TripSplitter — Group Trip Expenses Made Simple tripsplitter.fyi · Finance	Oct 19
CradleGuard - Zero-Cloud Nursery Monitor cradleguard.com	Oct 19
Galerie365 | Logiciel de gestion de galerie d’art galerie365.com	Oct 19
درخواست دمو و ثبت‌نام تخفیف نمایشگاه — سامانه اطلاعات مدیریت پروژه maan.one	Oct 19
Ultimate ICE — Archive Compressor ultimateice.org	Oct 19
Wath — Find Jobs Across India | Job Portal for Job Seekers & Employers wath.in · Hiring & HR · India	Oct 19
LeagueRoots | Registration software for youth sports community organizations leagueroots.com	Oct 19
Vuelty · ¿Estás para volver? vuelty.app	Oct 19
UzmanUTS | ÜTS Entegrasyon Yazılımı ve Otomatik UTS Bildirim Programı uzmanuts.com · Türkiye	Oct 19
Vorneka · Bağımsız yazılım stüdyosu, İstanbul vorneka.com · Türkiye	Oct 19

Showing the most recent 12 of 2,298.

Watches, exports and the API give you all 24,504 sites using Microsoft IIS, 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. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.