diff --git a/testing/web-platform/tests/.well-known/fedcm.json b/testing/web-platform/tests/.well-known/fedcm.json
new file mode 100644
index 0000000000000..54175a71061cb
--- /dev/null
+++ b/testing/web-platform/tests/.well-known/fedcm.json
@@ -0,0 +1,5 @@
+{
+  "provider_urls": [
+    "https://web-platform.test:8444/credential-management/support/"
+  ]
+}
diff --git a/testing/web-platform/tests/lint.ignore b/testing/web-platform/tests/lint.ignore
index c2804fa81b7f1..fdba97deda7a6 100644
--- a/testing/web-platform/tests/lint.ignore
+++ b/testing/web-platform/tests/lint.ignore
@@ -728,6 +728,9 @@ WEB-PLATFORM.TEST:web-bundle/resources/wbn/*.wbn
 WEB-PLATFORM.TEST:web-bundle/subresource-loading/*.html
 WEB-PLATFORM.TEST:web-bundle/subresource-loading/resources/*.js
 
+# well-known file has hardcoded URLs
+WEB-PLATFORM.TEST: .well-known/fedcm.json
+
 # Tests that depend on resources in /gen/ in Chromium:
 # https://github.com/web-platform-tests/wpt/issues/16455
 # Please consult with ecosystem-infra@chromium.org before adding more.