Receive
Time spent reading the response body after the first byte arrived.
This covers the rest of the download once the server has started responding: large response bodies, slow client-side bandwidth, or a server that streams a response slowly (chunked encoding, a slow generator) all show up here rather than in wait, because wait ends the moment the first byte is seen.
Other timing phases
- Blocked — Time spent queued before the browser could even open a connection for this request.
- DNS — Time spent resolving the hostname to an IP address.
- Connect — Time spent establishing the TCP connection, including the TLS handshake for HTTPS.
- SSL / TLS handshake — The portion of connect time spent negotiating TLS, shown separately for inspection.
- Send — Time spent writing the request onto the wire.
- Wait (TTFB) — Time between the request finishing transmission and the first byte of the response arriving.