diff --git a/check_zipair.py b/check_zipair.py
index 67bb347..94df330 100644
--- a/check_zipair.py
+++ b/check_zipair.py
@@ -102,7 +102,11 @@ def get_notification_ids_from_sitemap() -> list[int]:
                 ids = sorted(set(ids))
                 print(f"  Found {len(ids)} notification IDs (max={ids[-1]})")
                 return ids
-            print(f"  No notification IDs found in sitemap(s).")
+            # Debug: show sample URLs from sitemap so we can see the real pattern
+            sample_urls = re.findall(r"<loc>(https?://[^<]{10,})</loc>", xml)[:5]
+            print(f"  No notification IDs found. Sample URLs from sitemap:")
+            for u in sample_urls:
+                print(f"    {u}")
 
     # Fallback: EN notification listing page (IDs may be in HTML even if JS-rendered)
     print("Trying EN notification listing page …")
@@ -110,12 +114,16 @@ def get_notification_ids_from_sitemap() -> list[int]:
     print(f"  → {len(html)} bytes")
     ids = [int(m) for m in re.findall(r"/(?:en|ja|ko|th|zh-tw|zh-cn)/notification/(\d+)", html)]
     if not ids:
-        # also try bare /notification/NNN pattern
         ids = [int(m) for m in re.findall(r"/notification/(\d+)", html)]
     if ids:
         ids = sorted(set(ids))
         print(f"  Found {len(ids)} notification IDs from listing page (max={ids[-1]})")
         return ids
+    # Debug: show a snippet around "notification" in the HTML
+    lower = html.lower()
+    pos = lower.find("notification")
+    if pos != -1:
+        print(f"  Sample HTML around 'notification': {repr(html[pos:pos+300])}")
 
     return []