WebPagetest Forums
Is SpeedIndex expected to be the same for Cached View as well as First View? - Printable Version

+- WebPagetest Forums (https://www.webpagetest.org/forums)
+-- Forum: WebPagetest (/forumdisplay.php?fid=7)
+--- Forum: General Discussion (/forumdisplay.php?fid=25)
+--- Thread: Is SpeedIndex expected to be the same for Cached View as well as First View? (/showthread.php?tid=13118)



Is SpeedIndex expected to be the same for Cached View as well as First View? - pganti - 07-30-2014 04:13 AM

I was just noticing the fact that for most sites it seems the speedIndex is roughly the same for both repeat view and first view. Is that logical/theoretically expected?


RE: Is SpeedIndex expected to be the same for Cached View as well as First View? - pmeenan - 08-02-2014 10:39 AM

Not necessarily, it depends on how well they do at caching content. This huffington post page differs by ~30% for example: http://www.webpagetest.org/result/140801_RV_64D/?medianMetric=SpeedIndex

They will usually be relatively close (not an order of magnitude faster) as long as the base HTML still needs to be delivered and if they are reasonably well optimized.