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https://issues.apache.org/jira/browse/IGNITE-7292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16302118#comment-16302118
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Prachi Garg commented on IGNITE-7292:
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1. Updated css version and merged the patch.
2. Updated index.html and javascript (use data-src attribute) to lazy-load
youtube videos.
> Optimize Ignite main page load performance
> ------------------------------------------
>
> Key: IGNITE-7292
> URL: https://issues.apache.org/jira/browse/IGNITE-7292
> Project: Ignite
> Issue Type: Task
> Components: site
> Reporter: Denis Magda
> Assignee: Prachi Garg
> Priority: Blocker
> Fix For: 2.4
>
> Attachments: Screen Shot 2017-12-22 at 9.49.02 AM.png
>
>
> Ignite main page load performance is poor - takes from 3 to 5 seconds to load
> it completely. That might affect the SEO optimizations we've done so far.
> These are immediate actions to alleviate the situation:
> # Reduce banner and all the images size to 72 ppi resolution and save in the
> JPG format. Use photoshop "Image Size" dialog. The banner and thumbnails of
> screencasts were already changed, just need to regenerate the CSS and merge
> the patch.
> # The next fierce contributors to the poor performance are screencasts
> youtube videos. It takes 700ms for each screencast to make a roundtrip to
> YouTube. See the screenshot attached where 3 base.js calls are triggered by
> the video links. This has to be done asynchronously.
> # Preload GitHub, Twitter butten and feed asynchronously too.
> The overall goal of this optimization is to speed up the loading at least to
> 2.0 seconds.
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