https://blog.plzhans.com/en/tags/cache/Recent content in Cache on plzhans blogHugoenFri, 11 Sep 2026 13:01:00 +0000https://blog.plzhans.com/en/posts/127-cloudflare-workers-cache-tiered-cache/Fri, 11 Sep 2026 13:01:00 +0000https://blog.plzhans.com/en/posts/127-cloudflare-workers-cache-tiered-cache/<p><picture> <source srcset="https://blog.plzhans.com/posts/127-cloudflare-workers-cache-tiered-cache/assets/1_3d822a0f-7e83-8170-a661-c0a4f4df8698_hu_3defae76308df863.webp" type="image/webp"> <img src="https://blog.plzhans.com/posts/127-cloudflare-workers-cache-tiered-cache/assets/1_3d822a0f-7e83-8170-a661-c0a4f4df8698_hu_512a1c1f75bf96a1.png" alt="Cover image showing a Tiered Cache setup where multiple edge nodes reach the origin through a single upper tier" width="1200" height="630" loading="eager" fetchpriority="high"> </picture></p> <h2 id="overview">Overview</h2> <blockquote> <p>This post is part of the <a href="../124-cloudflare-workers-static-site-guide/">Cloudflare Workers Static Site Guide - From Deployment to SEO</a> series.</p> </blockquote> <p>Once a Worker starts calling an external API, you soon need a cache. Without one, <strong>origin load grows in proportion to page views.</strong></p> <p>Setting it up takes a single line, but after that come a few traps you will definitely hit if you don&rsquo;t know about them. In particular, the fact that <strong>the edge cache is not shared worldwide</strong> is obvious once you know it, but without that knowledge you will waste a lot of time wondering &ldquo;why isn&rsquo;t the cache hitting?&rdquo;</p>