BrowserVersionOwn?TypeAs String
Chrome77.0.3855???
Chrome77.0.3835ownobject[object Performance]
Chrome77.0.3833ownobject[object Performance]
Chrome76.0.3809ownobject[object Performance]
Chrome76.0.3804???
Chrome76.0.3802ownobject[object Performance]
Chrome76.0.3800???
Chrome76.0.3788ownobject[object Performance]
Chrome75.0.3770ownobject[object Performance]
Chrome75.0.3755ownobject[object Performance]
Chrome74.0.3729ownobject[object Performance]
Chrome73.0.3683ownobject[object Performance]
Chrome72.0.3626ownobject[object Performance]
Chrome72.0.3617???
Chrome72.0.3598ownobject[object Performance]
Chrome71.0.3578ownobject[object Performance]
Chrome71.0.3539ownfunctionfunction Performance() { [native code] }
Chrome70.0.3538ownobject[object Performance]
Chrome70.0.3534ownobject[object Performance]
Chrome70.0.3531ownobject[object Performance]
Chrome70.0.3522ownobject[object Performance]
Chrome70.0.3520ownobject[object Performance]
Chrome69.0.3497ownobject[object Performance]
Chrome69.0.3494ownobject[object Performance]
Chrome69.0.3481???
Chrome69.0.3472ownobject[object Performance]
Chrome69.0.3466ownobject[object Performance]
Chrome69.0.3457ownobject[object Performance]
Chrome69.0.3449???
Chrome68.0.3440ownobject[object Performance]
Chrome68.0.3434???
Chrome68.0.3431???
Chrome68.0.3428???
Chrome68.0.3423???
Chrome68.0.3409ownfunctionfunction Performance() { [native code] }
Chrome68.0.3400ownobject[object Performance]
Chrome68.0.3398ownfunctionfunction Performance() { [native code] }
Chrome67.0.3500???
Chrome67.0.3396ownobject[object Performance]
Chrome67.0.3394???
Chrome67.0.3386???
Chrome67.0.3384???
Chrome66.0.3450ownobject[object Performance]
Chrome66.0.3359ownobject[object Performance]
Chrome66.0.3336???
Chrome65.0.3325inheritedobject[object Performance]
Chrome65.0.3298???
Chrome65.0.3294ownobject[object Performance]
Chrome64.0.3350ownobject[object Performance]
Chrome64.0.3282ownobject[object Performance]
Chrome64.0.3253ownobject[object Performance]
Chrome63.0.3239ownobject[object Performance]
Chrome63.0.3231ownobject[object Performance]
Chrome63.0.3214???
Chrome63.0.3205???
Chrome62.0.3202ownobject[object Performance]
Chrome62.0.3176ownobject[object Performance]
Chrome62.0.3175???
Chrome62.0.3172ownobject[object Performance]
Chrome62.0.3166???
Chrome61.0.3163ownobject[object Performance]
Chrome61.0.3159???
Chrome61.0.3156ownobject[object Performance]
Chrome61.0.3150???
Chrome61.0.3149ownfunctionfunction Performance() { [native code] }
Chrome61.0.3147ownfunctionfunction Performance() { [native code] }
Chrome61.0.3126???
Chrome60.0.3112ownobject[object Performance]
Chrome59.0.3071ownobject[object Performance]
Chrome58.0.3300ownfunctionfunction Performance() { [native code] }
Chrome58.0.3050ownobject[object Performance]
Chrome58.0.3029ownobject[object Performance]
Chrome57.0.2987???
Chrome56.0.2924ownobject[object Performance]
Chrome55.0.2883ownobject[object Performance]
Chrome54.0.2840ownobject[object Performance]
Chrome53.0.2785ownobject[object Performance]
Chrome52.0.2743ownfunctionfunction Performance() { [native code] }
Chrome51.0.2704ownfunctionfunction Performance() { [native code] }
Chrome50.0.2661ownfunctionfunction Performance() { [native code] }
Chrome49.0.2623ownfunctionfunction Performance() { [native code] }
Chrome48.0.2564ownfunctionfunction Performance() { [native code] }
Chrome47.0.2526???
Chrome46.0.2490???
Chrome45.0.2454???
Chrome44.0.2403ownfunctionfunction Performance() { [native code] }
Chrome43.0.2357???
Chrome42.0.2311???
Chrome41.0.2272ownobject[object Performance]
Chrome40.0.2214???
Chrome39.0.2171???
Chrome38.0.2125ownfunctionfunction Performance() { [native code] }
Chrome38.0.1025???
Chrome37.0.2062ownfunctionfunction Performance() { [native code] }
Chrome36.0.1985ownobject[object Performance]
Chrome35.0.1916???
Chrome34.0.1847???
Chrome33.0.1750ownobject[object Performance]
Chrome31.0.1650ownobject[object Performance]
Chrome29.0.1547???
Chrome27.0.1453???
Chrome25.0.1364???
Chrome24.0.1312???
Chrome19.0.1084???
Chrome15.0.874???
CriOS66.0.3359ownobject[object Performance]
CriOS65.0.3325???
CriOS64.0.3282ownobject[object Performance]
CriOS62.0.3202???
CriOS59.0.3071ownobject[object Performance]
Edge77.0.221ownfunctionfunction Performance() { [native code] }
Edge77.0.217ownobject[object Performance]
Edge77.0.186ownobject[object Performance]
Edge76.0.174ownobject[object Performance]
Edge76.0.169ownfunctionfunction Performance() { [native code] }
Edge76.0.167ownobject[object Performance]
Edge76.0.147ownobject[object Performance]
Edge76.0.141ownobject[object Performance]
Edge75.0.130ownobject[object Performance]
Edge75.0.126ownobject[object Performance]
Edge75.0.121ownfunctionfunction Performance() { [native code] }
Edge75.0.111ownobject[object Performance]
Edge74.1.96ownfunctionfunction Performance() { [native code] }
Edge18.18362.0???
Edge18.17763.0ownobject[object Performance]
Edge17.17134.0ownobject[object Performance]
Edge16.16299.0ownobject[object Performance]
Edge15.15063.0ownfunctionfunction Performance() { [native code] }
Edge14.14393.0ownobject[object Performance]
Edge13.10586.0ownobject[object Performance]
Edge12.10136.0ownobject[object Performance]
Firefox70.0.0ownfunctionfunction Performance() { [native code] }
Firefox68.0.0ownfunctionfunction Performance() { [native code] }
Firefox67.0.0ownfunctionfunction Performance() { [native code] }
Firefox66.0.0ownfunctionfunction Performance() { [native code] }
Firefox65.0.0ownfunctionfunction Performance() { [native code] }
Firefox64.0.0ownobject[object Performance]
Firefox63.0.0ownfunctionfunction Performance() { [native code] }
Firefox62.0.0ownfunctionfunction Performance() { [native code] }
Firefox61.0.0ownfunctionfunction Performance() { [native code] }
Firefox60.0.0ownfunctionfunction Performance() { [native code] }
Firefox59.0.0ownfunctionfunction Performance() { [native code] }
Firefox58.0.0ownfunctionfunction Performance() { [native code] }
Firefox57.0.0ownfunctionfunction Performance() { [native code] }
Firefox56.2.5???
Firefox56.2.3???
Firefox56.0.0ownfunctionfunction Performance() { [native code] }
Firefox55.0.0inheritedobject[object Performance]
Firefox54.0.0ownfunctionfunction Performance() { [native code] }
Firefox53.0.0ownfunctionfunction Performance() { [native code] }
Firefox52.0.0ownfunctionfunction Performance() { [native code] }
Firefox51.0.0ownfunctionfunction Performance() { [native code] }
Firefox50.0.0ownfunctionfunction Performance() { [native code] }
Firefox49.0.0???
Firefox48.0.0ownobject[object Performance]
Firefox47.0.0???
Firefox45.0.0???
Firefox44.0.0ownfunctionfunction Performance() { [native code] }
Firefox43.0.0???
Firefox39.0.0ownfunctionfunction Performance() { [native code] }
Firefox38.0.0ownfunctionfunction Performance() { [native code] }
Firefox35.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox33.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox30.0.0inheritedobject[object Performance]
Firefox29.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox28.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox27.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox24.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox18.0.0inheritedfunctionfunction Performance() { [native code] }
Firefox6.0.0???
Firefox5.0.1???
Googlebot2.1.0ownobject[object Performance]
IE11.0.0inheritedobject[object Performance]
IE10.0.0ownobject[object Performance]
IE9.0.0inheritedobject[object Performance]
Opera9.80.0???
Safari538.1.0ownobject[object PerformanceConstructor]
Safari12.1.1???
Safari12.1.0ownobject[object Performance]
Safari12.0.3ownobject[object Performance]
Safari12.0.2???
Safari12.0.1ownobject[object Performance]
Safari12.0.0ownobject[object Performance]
Safari11.1.2ownobject[object Performance]
Safari11.1.1???
Safari11.1.0ownobject[object Performance]
Safari11.0.3???
Safari11.0.2???
Safari11.0.1???
Safari11.0.0ownobject[object Performance]
Safari10.1.2ownfunctionfunction Performance() { [native code] }
Safari10.1.1ownfunctionfunction Performance() { [native code] }
Safari10.1.0???
Safari10.0.3ownfunctionfunction Performance() { [native code] }
Safari10.0.0ownfunctionfunction Performance() { [native code] }
Safari9.1.3ownobject[object PerformanceConstructor]
Safari9.1.2ownobject[object Performance]
Safari8.0.8ownobject[object PerformanceConstructor]
Safari8.0.0???
Safari7.1.8???
Safari7.0.3???
Safari7.0.0???
Safari6.0.5???
Safari5.1.7???
Safari5.0.5???
Safari4.0.0ownfunctionfunction Performance() { [native code] }
Safari3.1.1ownobject[object Performance]
SamsungBrowser9.2.0???
SamsungBrowser9.0.0???
SamsungBrowser7.2.0ownobject[object Performance]
SamsungBrowser6.2.0ownobject[object Performance]
SamsungBrowser4.0.0???

PropertiesChromeCriOSEdgeFirefoxGooglebotIEOperaSafariSamsungBrowser
addEventListener 31.0.1650 59.0.3071 12.0.0 60.0.0 2.1.0?? 3.0.0 4.0.0
clearElementTimings 74.0.3729????????
clearEventTimings 68.0.3440????????
clearFrameTimings 54.0.2840????????
clearMarks 31.0.1650? 12.0.0 38.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
clearMeasures 31.0.1650? 12.0.0 38.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
clearResourceTimings 41.0.2272? 12.0.0 35.0.0? 10.0.0? 3.0.0 6.2.0
constructor??? 48.0.0?????
dispatchEvent 31.0.1650 59.0.3071 12.0.0 60.0.0 2.1.0?? 3.0.0 4.0.0
getEntries 31.0.1650? 12.0.0 35.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
getEntriesByName 31.0.1650? 12.0.0 35.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
getEntriesByType 31.0.1650? 12.0.0 35.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
getMarks 61.0.3163? 13.10586.0 55.0.0? 10.0.0???
getMeasures 61.0.3163? 13.10586.0 55.0.0? 10.0.0???
length 31.0.1650? 12.0.0 18.0.0 2.1.0?? 3.0.0 6.2.0
mark 31.0.1650? 12.0.0 38.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
measure 31.0.1650? 12.0.0 38.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
memory 15.0.874? 12.0.0? 2.1.0?? 3.0.0 4.0.0
navigation 15.0.874 59.0.3071 12.0.0 18.0.0 2.1.0 9.0.0? 3.0.0 4.0.0
now 24.0.1312 59.0.3071 12.0.0 18.0.0 2.1.0 10.0.0? 3.0.0 4.0.0
onelementtimingbufferfull 74.0.3729????????
oneventtimingbufferfull 68.0.3440????????
onframetimingbufferfull 54.0.2840????????
onresourcetimingbufferfull 41.0.2272? 12.0.0 35.0.0??? 3.0.0 6.2.0
onwebkitresourcetimingbufferfull 25.0.1364??? 2.1.0?? 4.0.0 4.0.0
profile?????????
prototype 31.0.1650? 12.0.0 18.0.0 2.1.0 9.0.0? 3.0.0 6.2.0
removeEventListener 31.0.1650 59.0.3071 12.0.0 60.0.0 2.1.0?? 3.0.0 4.0.0
setElementTimingBufferMaxSize 74.0.3729????????
setEventTimingBufferMaxSize 68.0.3440????????
setFrameTimingBufferSize 54.0.2840????????
setResourceTimingBufferSize 41.0.2272? 12.0.0 35.0.0? 10.0.0? 3.0.0 6.2.0
shouldYield 69.0.3457????????
timeOrigin 41.0.2272? 16.0.0 50.0.0??? 3.0.0?
timing 15.0.874 59.0.3071 12.0.0 18.0.0 2.1.0 9.0.0? 3.0.0 4.0.0
toJSON 41.0.2272? 12.0.0 27.0.0? 9.0.0? 3.0.0 6.2.0
toString 31.0.1650?? 24.0.0 2.1.0?? 4.0.0?
webkitClearMarks 25.0.1364?????? 4.0.0?
webkitClearMeasures 25.0.1364?????? 4.0.0?
webkitClearResourceTimings 25.0.1364??? 2.1.0?? 4.0.0 4.0.0
webkitGetEntries 25.0.1364?????? 4.0.0?
webkitGetEntriesByName 25.0.1364?????? 4.0.0?
webkitGetEntriesByType 25.0.1364?????? 4.0.0?
webkitMark 25.0.1364?????? 4.0.0?
webkitMeasure 25.0.1364?????? 4.0.0?
webkitNow 36.0.1985?????? 4.0.0?
webkitSetResourceTimingBufferSize 25.0.1364??? 2.1.0?? 4.0.0 4.0.0