In addition to reducing latency, CDN also helps improve TTFB , or the time the browser has to wait to receive the first byte of data from the server: the longer it takes to receive data from the server, the longer it will take to display the page.
TTFB
To calculate TTFB as accurately as possible, network latency must also be america mobile number considered, with a 3-step process:
Server Processing
Response to the client
In general, Google PageSpeed Insight recommends response times under 200ms so a value of 100ms or less is an excellent TTFB.
Caching and HTTP/2
The use of caching and the HTTP/2 protocol are two features that allow CDNs to deliver files quickly, thereby improving the performance and loading speed of your website.
Safety
A CDN also works as a screen between the user making a request and the corresponding server: in short, it filters incoming traffic. In this way, the CDN can identify and block any cyber threats, protecting your website from attacks.