diff --git a/src/crawler/zhihu.com/check.sh b/src/crawler/zhihu.com/check.sh
new file mode 100755
index 0000000..9f4d5a0
--- /dev/null
+++ b/src/crawler/zhihu.com/check.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+cd "$(dirname "$0")"
+
+diff <(xz -cdk ./archive/xxrs.json.xz | jq .) <(jq . ./data/xxrs.json)