One Worker to Track Them All: Injecting Analytics Scripts into Multiple Websites with Cloudflare Workers

For a while now, I've been creating mini web tools to test out ideas or as tiny helpers for myself. I usually publish them on individual subdomains, which might not be the best idea, but I like the concept of a short, easy-to-remember URL. Recently, I discovered that some of these tools actually have a few users, which made me consider adding analytics to them. After a bit of research, I settled on umami. It's a great little privacy-conscious …

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