alt Hacker NewsDepends on your use case.
If you have a very inefficient backend (maybe legacy project?), you have massive amount of traffic (say 100K req/s or above) or you really must have sub-500ms latency absolutely everywhere in the world, then it might make sense to slap a CDN (or similar) on top of that.
In pretty much any case outside of that, it makes no sense to waste the time, money or effort on CDNs. But, all the CDN companies seemingly have convinced half the internet that you absolutely must use a CDN, otherwise you'll get hacked/broke/killed/sent to the moon, and they've been successful with this campaign too seemingly.
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Data scraping.
If anything else, the AI machine wants near constant streams of new data, even if it already checked with you 30ms ago.
A CDN helps immensely.
Also keeps you from getting DDoS'd if you did something like run it off your home connection.
How does a cdn makes you backend faster or your latency better ? I thought it was only for distributing static assets and managing DDOS. If it is for cachable but dynamic content install reverse-proxy cache it will fly.