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Speed Index vs. above fold animations
07-04-2015, 12:39 AM (This post was last modified: 07-06-2015 05:59 PM by luboskmetko.)
Post: #1
Speed Index vs. above fold animations
Let's say a website has some introductory animation above the fold, eg. an image fades in, then a heading slides in, etc. Normally those elements would appear at some moment but now they are delayed by the animation duration. Does this affect Speed Index?

Thanks
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08-16-2015, 09:55 PM
Post: #2
RE: Speed Index vs. above fold animations
(07-04-2015 12:39 AM)luboskmetko Wrote:  Let's say a website has some introductory animation above the fold, eg. an image fades in, then a heading slides in, etc. Normally those elements would appear at some moment but now they are delayed by the animation duration. Does this affect Speed Index?

Thanks

If there's a large enough visual change, which it does sound like, then yes.
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08-24-2015, 10:14 PM
Post: #3
RE: Speed Index vs. above fold animations
(08-16-2015 09:55 PM)mikefoskett Wrote:  
(07-04-2015 12:39 AM)luboskmetko Wrote:  Let's say a website has some introductory animation above the fold, eg. an image fades in, then a heading slides in, etc. Normally those elements would appear at some moment but now they are delayed by the animation duration. Does this affect Speed Index?

Thanks

If there's a large enough visual change, which it does sound like, then yes.

Yes, thank you.

In the meanwhile I've set up a test to verify this, just haven't got to answering my own question here yet:

Test page without animation:
http://animations-speed-index.previewize...tions.html

Test result:
http://www.webpagetest.org/result/150720...e5d152571/

Test page with animation:
http://animations-speed-index.previewize...ons-1.html

Test result:
http://www.webpagetest.org/result/150720...00c48bfe1/

There are 3 animations taking 2 seconds together, which almost doubled the speed index result.
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