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timing.io's Introduction

timing.io

Timing.js is a small set of helpers for working with the Navigation Timing API to identify where your application is spending its time. Useful as a standalone script, DevTools Snippet or bookmarklet.

Installation

npm i timing.io

Usage

By default, running the script will print out a summary table of measurements. The API for the script is as follows:

Get measurements:

timing.getTimes();

Sample output of timing.getTimes()

Chrome:

firstPaint: 1411307463455.813 // New
firstPaintTime: 685.0390625 // New
appcacheTime: 2
connectEnd: 1411307463185
connectStart: 1411307463080
connectTime: 105 // New
domComplete: 1411307463437
domContentLoadedEventEnd: 1411307463391
domContentLoadedEventStart: 1411307463391
domContentReadyTime: 690 // New
domInteractive: 1411307463391
domLoading: 1411307463365
domReadyTime: 46 // New
domainLookupEnd: 1411307463080
domainLookupStart: 1411307463032
fetchStart: 1411307463030
initDomTreeTime: 56 // New
loadEventEnd: 1411307463445
loadEventStart: 1411307463437
loadEventTime: 8 // New
loadTime: 558 // New
lookupDomainTime: 48
navigationStart: 1411307462887
readyStart: 143 // New
redirectEnd: 0
redirectStart: 0
redirectTime: 0 // New
requestStart: 1411307463185
requestTime: 150 // New
responseEnd: 1411307463335
responseStart: 1411307463333
secureConnectionStart: 1411307463130
unloadEventEnd: 0
unloadEventStart: 0
unloadEventTime: 0 // New

License

MIT

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