diff --git a/website/matchers/random.ts b/website/matchers/random.ts
index 354ab05cf..7ad666528 100644
--- a/website/matchers/random.ts
+++ b/website/matchers/random.ts
@@ -8,6 +8,11 @@ export interface Props {
 // once selected the session will reuse the same value
 export const sticky = "session";
 
+// Sticky-session matchers persist the result in a deco_matcher_* cookie, and
+// CDNs are expected to include that cookie in the cache key — so per-variant
+// responses get distinct cache entries and the page is safely cacheable.
+export const cacheable = true;
+
 /**
  * @title Random
  * @description Target a percentage of the total traffic to do an A/B test