Of course, light doesn't travel at vacuum speed in fiber, it travels a bit slower, but it also bounces around the cable, so ends up traveling a significantly lo

Of course, light doesn't travel at vacuum speed in fiber, it travels a bit slower, but it also bounces around the cable, so ends up traveling a significantly longer distance. Multiply by around 1.5 for more real world numbers (copper is similar), just measuring raw distance. And switching adds significant delay, especially when you get out to the edge. > If you mean REST API requests, the kind that trigger some code to dynamically generate a response, how would a CDN solution like cloudflare help? The request still needs to get to the server and the response still needs to come back, all the way, because that's where that code runs. CDNs only really work for cacheable static content, don't they? I mean it's in the name. For a simple example, imagine assets that are dynamically loaded based on feature detection in JS. All of the assets (js included) can be cached on the cdn.