diff --git a/packages/ui/certd-client/src/components/plugins/cert/domains-verify-plan-editor/cname-tip.vue b/packages/ui/certd-client/src/components/plugins/cert/domains-verify-plan-editor/cname-tip.vue
index a044c9e96..69bfb6475 100644
--- a/packages/ui/certd-client/src/components/plugins/cert/domains-verify-plan-editor/cname-tip.vue
+++ b/packages/ui/certd-client/src/components/plugins/cert/domains-verify-plan-editor/cname-tip.vue
@@ -6,9 +6,8 @@
         <div>1. 解析记录应该添加在{{ record.domain }}域名下</div>
         <div>2. 要添加的是CNAME类型的记录，不是TXT</div>
         <div>3. 核对记录值是否是:{{ record.recordValue }}</div>
-        <div>
-          4. 运行命令 <a-tag color="green">nslookup -qa=txt {{ record.hostRecord }}.{{ mainDomain }}</a-tag> 查看解析是否正确
-        </div>
+        <div>4. 运行下面的命令,查看解析是否正确 <fs-copyable :style="{ color: '#52c41a' }" :model-value="nslookupCmd"></fs-copyable></div>
+        <div>5. 如果以上检查都没有问题，则可能是DNS解析生效时间比较慢，某些提供商延迟可能高达几个小时</div>
       </div>
     </template>
     <fs-icon class="ml-5 pointer" icon="mingcute:question-line"></fs-icon>
@@ -22,9 +21,13 @@ const props = defineProps<{
   record: any;
 }>();
 const mainDomain = computed(() => {
-  if (props.record.domain) {
+  if (props?.record?.domain) {
     return psl.parse(props.record.domain).domain;
   }
   return "";
 });
+
+const nslookupCmd = computed(() => {
+  return `nslookup -qa=txt ${props.record.hostRecord}.${mainDomain.value}`;
+});
 </script>