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Network / network / Collecting Network Connection Metrics

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Overview
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Collecting Network Connection Metrics

Use reports to understand how DNS and protocol handshakes impact connection establishment.

Overview

note:

This sample code project is associated with WWDC 2019 session 713: Advances in Networking, Part 2.

See Also

Collecting Connection Metrics

requestEstablishmentReport(queue:completion:)
NWConnection.EstablishmentReport
startDataTransferReport()
NWConnection.PendingDataTransferReport
NWConnection.DataTransferReport

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NetworkSample Code

iOS 13.0+iPadOS 13.0+Mac Catalyst 13.0+xcode 13.0+

Overview
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Built on 2026-05-07