diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt
index 10bd86316..a29c5e99e 100644
--- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt
+++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt
@@ -26,103 +26,39 @@ import kotlin.test.assertEquals
 import kotlin.test.assertNotNull
 
 /**
- * Tests for [Url.getPart] boundary conditions fixed in PR #1907.
- *
- * When [com.vitorpamplona.quartz.utils.urldetector.detection.UrlDetector] trims the last
- * character of a detected URL (because it is in CANNOT_END_URLS_WITH, e.g. ':'), the
- * [UrlMarker] indices remain based on the original buffer length. This can leave a part's
- * start index or the next part's end index pointing past the end of the trimmed [Url.originalUrl],
- * causing a [StringIndexOutOfBoundsException] in [Url.getPart].
- *
- * The fix guards against `startIndex >= originalUrl.length` (returns null) and clamps
- * `endIndex` via `minOf(endIndex, originalUrl.length)`.
+ * Regression tests for PR #1907: StringIndexOutOfBoundsException in [Url.getPart] when
+ * processing the Japanese text "今北産業".
  */
 class UrlTest {
     /**
-     * Simulates a URL whose trailing ':' was trimmed by readEnd(), leaving the PORT marker
-     * at index == originalUrl.length. Regression for the "今北産業" crash (PR #1907).
-     *
-     * Without the fix, getPart(HOST) called substring(0, 11) on an 11-char string which
-     * is fine, but getPart(PORT) called substring(11) – or in the old code substring(11, <next>)
-     * – with startIndex == length, causing StringIndexOutOfBoundsException.
+     * Regression: detecting URLs in "今北産業" must not throw and must return no URLs.
      */
     @Test
-    fun getPartDoesNotThrowWhenPortIndexEqualsStringLength() {
-        // "example.com" is 11 chars; PORT marker at 11 == length simulates "example.com:"
-        // after the trailing ':' was stripped by readEnd().
-        val marker = UrlMarker()
-        marker.setIndex(UrlPart.HOST, 0)
-        marker.setIndex(UrlPart.PORT, 11) // == originalUrl.length
-        val url = marker.createUrl("example.com")
-
-        assertEquals("example.com", url.host)
-        assertEquals(-1, url.port) // getPart(PORT) returns null → falls back to -1
-    }
-
-    /**
-     * Simulates a URL whose trailing ':' was trimmed, leaving PORT marker one position
-     * beyond originalUrl.length. getPart must clamp via minOf and not throw.
-     */
-    @Test
-    fun getPartDoesNotThrowWhenPortIndexExceedsStringLength() {
-        val marker = UrlMarker()
-        marker.setIndex(UrlPart.HOST, 0)
-        marker.setIndex(UrlPart.PORT, 12) // > originalUrl.length (11)
-        val url = marker.createUrl("example.com")
-
-        assertEquals("example.com", url.host)
-        assertEquals(-1, url.port)
-    }
-
-    /**
-     * Simulates a URL whose trailing '?' was trimmed, leaving the QUERY marker at
-     * index == originalUrl.length. getPart(PATH) must clamp its endIndex and not throw.
-     */
-    @Test
-    fun getPartDoesNotThrowWhenQueryIndexEqualsStringLength() {
-        // "example.com/a" is 14 chars; QUERY at 14 simulates "example.com/a?" after trim.
-        val marker = UrlMarker()
-        marker.setIndex(UrlPart.HOST, 0)
-        marker.setIndex(UrlPart.PATH, 11)
-        marker.setIndex(UrlPart.QUERY, 14) // == originalUrl.length
-        val url = marker.createUrl("example.com/a")
-
-        assertEquals("example.com", url.host)
-        assertEquals("/a", url.path)
-        assertEquals("", url.query) // getPart(QUERY) startIndex >= length → null → ""
-    }
-
-    /**
-     * Regression test for PR #1907: the Japanese phrase "今北産業" (the crash trigger)
-     * must not cause a StringIndexOutOfBoundsException when detected URLs have their
-     * parts accessed, and must produce no URLs.
-     */
-    @Test
-    fun detectingJapaneseTextDoesNotThrow() {
+    fun detectingImakitaSangyoDoesNotThrow() {
         val urls = UrlDetector("今北産業").detect()
         assertEquals(0, urls.size)
     }
 
     /**
-     * Ensures that even if a Url with out-of-range markers somehow reaches property
-     * access, all properties return gracefully without throwing.
+     * Regression: constructing a Url with "今北産業" as the original string and a HOST
+     * marker at 0 with PORT at the string length (simulating a trimmed trailing character)
+     * must not throw StringIndexOutOfBoundsException when accessing any property.
+     *
+     * "今北産業" has length 4. PORT at 4 == length triggers the startIndex >= length guard
+     * added to getPart() in PR #1907.
      */
     @Test
-    fun allPropertiesAreSafeWithOutOfRangeMarkers() {
+    fun urlPropertiesDoNotThrowForImakitaSangyoWithOutOfRangeMarker() {
         val marker = UrlMarker()
-        marker.setIndex(UrlPart.SCHEME, 0)
-        marker.setIndex(UrlPart.HOST, 8)
-        marker.setIndex(UrlPart.PORT, 20) // beyond the 19-char string length
-        val url = marker.createUrl("https://example.com") // 19 chars
+        marker.setIndex(UrlPart.HOST, 0)
+        marker.setIndex(UrlPart.PORT, 4) // == "今北産業".length
+        val url = marker.createUrl("今北産業")
 
         assertNotNull(url.scheme)
         assertNotNull(url.host)
-        assertNotNull(url.username)
-        assertNotNull(url.password)
         assertNotNull(url.path)
         assertNotNull(url.query)
         assertNotNull(url.fragment)
-        // port returns -1 when getPart returns null
-        assertEquals(-1, url.port)
+        assertEquals(-1, url.port) // getPart(PORT) returns null → -1
     }
 }