Microsoft Authentication Library on new websites

1. Microsoft Authentication Library appeared on about 110 new sites in the last 30 days.^[1]

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

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Google Sign-In	1.7%	62.3%
2	▲1	Clerk	0.5%	16.7%
3	▼1	Auth.js	0.4%	15.7%
4	–	Google Identity Platform	0.1%	2.3%
5	▲4	Privy	<0.1%	1.1%
…
12	▼1	Microsoft Authentication Library	<0.1%	0.3%

All-time shares across the new sites we track: of all of them, and of the sites using any Auth tool. Microsoft Authentication Library is typically used alongside Google Sign-In rather than instead of it. All 172 in Auth

Tool	Sites with both	vs all new sites	Bar
Microsoft Entra ID	162	5841x
Microsoft 365	131	15x
React Router	136	4.5x
Vite	249	2.3x

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

168 of the 455 sites using Microsoft Authentication Library are product launches we list individually. The other 287 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
YalliGO · Portail des clubs yalligo.com	Oct 19
Notify | Guitar Practice Notebooks notifynotebooks.com	Oct 18
Autopilot QR autopilotqr.app	Oct 18
PebbleCRE pebblecre.com · Finance	Oct 16
WorkCohorts workcohorts.com · AI	Oct 16
Angel Circle: neighbours helping neighbours angelcircle.ca · Canada	Oct 16
Loomency Cloud loomency.net · Health	Oct 15
Zenith Grading Company — Premium TCG grading & authentication zenithgrading.ae · United Arab Emirates	Oct 14
taazir taazir.com · Education · Bangladesh	Oct 14
SquawkBook squawkbook.app	Oct 13
Repair damaged Word and Excel files | AEDOC aedoc.app	Oct 12
Licencia CR · Tu próxima ruta licenciacr.com · Education	Oct 11

Showing the most recent 12 of 168.

Watches, exports and the API give you all 455 sites using Microsoft Authentication Library, 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.