Microsoft Entra ID (Azure AD) is Microsoft's cloud identity service.
About 5,946 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.
How is Microsoft Entra ID sign-in detected?
Login links and the site's MSAL configuration point at login.microsoftonline.com/<tenant>. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About Microsoft Entra ID sign-in
Top 50 websites using Microsoft Entra ID sign-in
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-10-05 05:32:00 UTC.
Questions about finding Microsoft Entra ID sign-in
How does PageSourceSearch know a website uses Microsoft Entra ID sign-in?
By the source itself: Login links and the site's MSAL configuration point at login.microsoftonline.com/<tenant>. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using Microsoft Entra ID sign-in?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 5,946 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use Microsoft Entra ID sign-in together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example login.microsoftonline.com/ with wp-content/plugins/ lists the WordPress sites that use Microsoft Entra ID sign-in.