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Author: davidbarratt

README.md

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 # Cache Tag
+
+Cloudflare has the ability to index cached resources by _tag_ which allows those resources be
+[purged by tag](https://developers.cloudflare.com/cache/how-to/purge-cache/purge-by-tags/). However, this feature is
+[only available for Enterprise customers](https://developers.cloudflare.com/cache/how-to/purge-cache/purge-by-tags/#:~:text=Note%20that%20Tag%2C%20Hostname%20and%20Prefix%20purges%20are%20only%20available%20for%20Enterprise%20customers.).
+
+Despite this limitation, an index can be built using [Workers](https://developers.cloudflare.com/workers/),
+[D1](https://developers.cloudflare.com/d1/), and [Queues](https://developers.cloudflare.com/queues/).
+
+## Architecture
+
+<picture>
+  <source media="(prefers-color-scheme: dark)" srcset="./cache-tag-dark.svg">
+  <source media="(prefers-color-scheme: light)" srcset="./cache-tag-light.svg">
+  <img alt="Architecture Diagram" src="./cache-tag-light.svg">
+</picture>