Browser & Web Performance · Senior · Question 60 of 75
Why can a single large HTML document still have a slow TTFB with HTTP/3 and a CDN?
- 1HTTP/3 can't carry HTML
- 2CDNs always add a fixed one-second delay
- ✓Correct answer: If the page isn't cacheable, the CDN must wait for the origin to generate it, so server time dominates
Explanation
Protocols reduce connection costs, not server work. Edge caching of HTML, streaming and faster backends address that part.