---
title: "Navigation Timing 1"
slug: "web-data-collection-navigation-timing-1"
updated: 2026-02-23T12:03:41Z
published: 2026-02-23T12:03:41Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.lakesidesoftware.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Navigation Timing 1

| Feature | API | Description | Type | Precision | Compatibility |
| --- | --- | --- | --- | --- | --- |
| Navigation Start Time | PerformanceTiming | Time that the unload event for the last page finishes | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Unload Event Duration | PerformanceTiming | Start and end times of the unload event for the last page | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Redirect Duration | PerformanceTiming | Start time of first redirect, and end time of last redirect | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Fetch Start | PerformanceTiming | Time the browser is ready to send the HTTP request | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Domain Lookup Duration | PerformanceTiming | Start and end times of the domain lookup | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Connect Duration | PerformanceTiming | Time it takes the browser to open the connection | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Secure Connection Time | PerformanceTiming | Time at which the secure connection handshake starts | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Request Start | PerformanceTiming | Time at which the browser sends the request | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Response Duration | PerformanceTiming | Start and end times when the response is received | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| DOM Loading Time | PerformanceTiming | Time at which the document state becomes ‘loading’ | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| DOM Interactive Time | PerformanceTiming | Time at which the document state becomes ‘interactive’ | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| DOM Content Loaded Duration | PerformanceTiming | Start and end times of the DOMContentLoaded event | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| DOM Complete Time | PerformanceTiming | Time at which the document state becomes ‘complete’ | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Load Event Duration | PerformanceTiming | Start and end times of the ‘load’ event | Unsigned long long | Milliseconds | Chrome, Edge, Firefox |
| Navigation Type | PerformanceNavigation | How the navigation was done: navigation, refresh, or forward/back | Unsigned Short |  | Chrome, Edge, Firefox |
| Redirect Count | PerformanceNavigation | Number of redirects to get to this page | Unsigned Short |  | Chrome, Edge, Firefox |