diff --git a/local/check-cdn-cache.sh b/local/check-cdn-cache.sh
new file mode 100644
index 0000000..73a813a
--- /dev/null
+++ b/local/check-cdn-cache.sh
@@ -0,0 +1,34 @@
+# arm64
+
+curl -s https://cran.devxy.io/arm64/jammy/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/arm64/jammy/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/arm64/noble/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/arm64/noble/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+
+curl -s https://cran.devxy.io/arm64/rhel8/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/arm64/rhel8/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/arm64/rhel9/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/arm64/rhel9/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/arm64/alpine320/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/arm64/alpine320/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+# amd64
+
+curl -s https://cran.devxy.io/amd64/jammy/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/amd64/jammy/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/amd64/noble/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/amd64/noble/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/amd64/rhel8/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/amd64/rhel8/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/amd64/rhel9/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/amd64/rhel9/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
+
+curl -s https://cran.devxy.io/amd64/alpine320/latest/src/contrib/PACKAGES.gz | gzip -cd | grep '^Package:' | wc -l
+curl -s https://cran.devxy.io/amd64/alpine320/latest/src/contrib/PACKAGES | grep '^Package:' | wc -l
\ No newline at end of file