Microsoft Authentication Library on new websites
Microsoft Authentication Library (MSAL): Microsoft Entra ID sign-in browser library.
446 sites
427 found by StackScope, 19 via launch platforms
- StackScope Wider Web 282
- StackScope Discovery (Indie) 145
- Product Hunt 14
- Hacker News 4
- PeerPush 1
Microsoft Authentication Library appeared on about 110 new sites in the last 30 days.
These figures cover websites that went live since April 2026, not the web as a whole.
Get told when a new site ships with Microsoft Authentication Library.
107 new sites with Microsoft Authentication Library first seen in the last 30 days.
Stackdar watches every launch we detect and sends you the ones using Microsoft Authentication Library, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workShare of new sites using Microsoft Authentication Library
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026.
The shaded areas were measured against a different set of sites, so the line can step there without Microsoft Authentication Library itself changing.
Coverage details
Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.
Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.
Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.
What kind of sites use Microsoft Authentication Library
171 sites with a known type, all time
Domain endings using Microsoft Authentication Library
446 sites, all time
- .com 45.1%
- .app 11.2%
- .ai 7.6%
- .net 4.7%
- .io 3.6%
- .cloud 2.7%
- .tech 2.5%
- .ca 2.2%
- .online 2.2%
- .uk 2.2%
- .org 1.8%
- .co 1.6%
- .site 1.6%
- .ch 1.1%
- .fr 1.1%
Country
Country likely for 47 of 446 sites (10.5%), all time.
How we know
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.
-
United Kingdom
19.2%
-
Canada
12.8%
-
France
10.6%
-
United States
10.6%
-
Switzerland
8.5%
-
India
8.5%
-
New Zealand
6.4%
-
United Arab Emirates
4.3%
-
Ireland
4.3%
-
Argentina
2.1%
-
Belgium
2.1%
-
Chile
2.1%
-
Spain
2.1%
-
Poland
2.1%
-
Sweden
2.1%
Auth leaders
| Tool | % of sitesall time | % of categoryall time | ||
|---|---|---|---|---|
| #1 | – |
Google Sign-In
|
1.7% | 62.2% |
| #2 | ▲1 |
Clerk
|
0.5% | 16.8% |
| #3 | ▼1 |
Auth.js
|
0.4% | 15.9% |
| #4 | – |
Google Identity Platform
|
0.1% | 2.3% |
| #5 | ▲4 |
Privy
|
<0.1% | 1.1% |
| … | ||||
| #11 | ▼1 | Microsoft Authentication Library Current page | <0.1% | 0.3% |
Percentages show all-time adoption across the new sites we track: the share 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 170 in Auth →
Often used with
| Tool | Sites | vs all new sites |
|---|---|---|
| Microsoft Entra ID | 159 | 5786x |
Microsoft 365
|
128 | 15x |
React Router
|
135 | 4.5x |
Vite
|
244 | 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.
Recent launches using Microsoft Authentication Library
164 of the 446 sites using Microsoft Authentication Library are product launches we list individually. The other 282 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works
Angel Circle: neighbours helping neighbours
Also detected
Loomency Cloud
Also detected
Zenith Grading Company — Premium TCG grading & authentication
Also detected
taazir
Also detected
SquawkBook
Also detected
Repair damaged Word and Excel files | AEDOC
Also detected
Licencia CR · Tu próxima ruta
Also detected
ZoneForge for Azure – Azure Architecture Designer, Validator & IaC Deployment Tool
Also detected
Convivo — your household, organized in one place
Also detected
Aderra
Also detected
Archiva — Meeting memory for your organisation
Also detected
Showing the most recent 12 of 164.
The StackScope API serves all 446 sites using Microsoft Authentication Library, filterable and exportable, from £15 a month.