TTFB (or Time to first byte) is the duration from the initial network request being initiated by the browser to the first byte being received from the server.

是浏览器的初始化到从服务器接收到的第一个字节的时间。

youdao

This is measured as the time elapsed between the first byte received from the server and the last one.

更确切的说是指收到来自服务器第一个字节的数据与最后一个字节数据所用的时间。

youdao

TTFB (or Time To First Byte) is the duration from the initial network request being initiated by the browser to the first byte being received from the server.

从响应的第一个字节开始，到把响应接收完为止的时间。

youdao