What do DNS, TCP Connect, TLS, TTFB, and Total mean?

These metrics describe the timing of your local request:

• DNS Lookup — resolving the domain to an IP address.
• TCP Connect — establishing a connection to the server.
• TLS Handshake — negotiating HTTPS encryption.
• TTFB — time until the first byte of the response arrives.
• Total — full round‑trip time for the request.

They help identify whether delays come from resolution, connection, encryption, or server response.