diff --git a/layouts/default.vue b/layouts/default.vue
index a07e90e..6ba9ae8 100644
--- a/layouts/default.vue
+++ b/layouts/default.vue
@@ -166,12 +166,11 @@
               format="webp"
             />
             <a
-              href=" "
+              href="https://beian.miit.gov.cn/"
               rel="noreferrer"
               target="_blank"
               class="hover:no-underline inline-flex cursor-pointer ml-1"
-              >京公网安备11010802045670号</a
-            >
+              >京ICP备{{ icpSuffix }}</a>
           </p>
         </div>
       </div>
@@ -187,12 +186,20 @@ const router = useRouter()
 const checkScroll = () => {
   isScrolled.value = window.scrollY > 20
 }
-
+const icpSuffix = ref('')
 onMounted(() => {
   if (typeof window !== 'undefined') {
     checkScroll()
     window.addEventListener('scroll', checkScroll)
   }
+  const hostname = window.location.hostname
+  if (hostname.endsWith('.com')) {
+    icpSuffix.value = '2025119652号-2'
+  } else if (hostname.endsWith('.cn')) {
+    icpSuffix.value = '2025119652号-1'
+  } else {
+    icpSuffix.value = '2025119652号'
+  }
 })
 
 onUnmounted(() => {