Upgrade to Pro — share decks privately, control downloads, hide ads and more …

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

More Decks by Simon Hearne

Other Decks in Technology


  1. When can they read the article? When can they start

    the task? When can they add to basket?
  2. conversion load time speed index cart abandonment upsell bounce rate

    first paint page size document complete lifetime value cost of acquisition session length
  3. 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)
  4. 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
  5. 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