With some browser security policy that blocks part of the download, the homepage www.photopea.com clocks in at 3.80MB (so it should be much higher in practice).

With some browser security policy that blocks part of the download, the homepage www.photopea.com clocks in at 3.80MB (so it should be much higher in practice). In this case, it's mostly JS, so designing your website properly (without JS, especially if the app itself is wasm not JS) would have much better savings than moving to CloudFlare CDN. A CDN is more times than not the wrong answer to a real problem. Shave off your website and consider content-addressed protocols for big static asset download (like the textures from the article). If you run your website as a lightweight glorified Bittorrent index you'll notice your costs are suddenly a lot less, and you can still have a smaller "Download over the web" button as fallback.