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Webinar: How Fast is Fast Enough?

Webinar: How Fast is Fast Enough?

Do you know when your website's speed starts to impact your customers' behaviour?

The speed of your site affects how your visitors behave: how many pages they view, how much they spend or even whether they convert.

Join two of the world's leading web performance experts, Andy Davies and Simon Hearne, as they discuss what you should consider when measuring your site's speed and how to determine when speed is a problem.

You'll leave this webinar with a good understanding of why speed matters, what good performance looks like and how it impacts on your business.

Simon Hearne

July 06, 2016
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Transcript

  1. When can they
    read the article?
    When can they
    start the task?
    When can they
    add to basket?

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  2. result
    effort

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  3. performance
    effort

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  4. conversion
    load time
    speed index
    cart abandonment
    upsell
    bounce rate
    first paint
    page size
    document complete
    lifetime value
    cost of acquisition
    session length

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  5. Performance is in the
    eye of the beholder

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  6. 2s 4s 6s 8s 10s 12s

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  7. Speed Index of every page view for every customer?

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  8. Time to First Byte 0.34
    First Paint 0.74
    Visually Complete 0.78
    DCL End 0.70
    Load Time 0.74
    Requests 0.34
    Page Size 0.43
    Alternative Metrics / Correlation with Speed Index
    (Alexa & Quantcast top 1,000 sites)

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  9. 0
    2000
    4000
    6000
    8000
    10000
    12000
    14000
    16000
    0 5000 10000 15000 20000 25000 30000 35000 40000
    Speed Index
    Load Time (ms)
    Video impacts visual
    performance
    450 third-party objects
    impact load time

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  10. Bounce Rate
    Council
    ECommerce
    Holidays
    Page Load Time

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  11. Page Load Time
    Session Length
    Council
    ECommerce
    Holidays
    4s

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  12. 50% of customer experiences > 5 seconds!
    Flat between 1.8s & 4.3s

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  13. Smartphone experience worst

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  14. Android worse than iPhone
    Mode = 4.7s!

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  15. Visitor experience varies
    Measure these experiences in the wild
    Load time is a good indicator of experience
    Load times over four seconds are catastrophic to user engagement
    Best user engagement is at 1 second or less
    Visitors expect mobile to be as fast as desktop

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  16. Is your site faster than four seconds?

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