In how many seconds should a website load in 2020, what is β€œfast”, and where does the mirrors in elevators have to do with it?

It would seem that I’ve measured the time from the HTTP request of the browser to loading the last byte of the page - and that's it. Not so fast! Google, for example, has as many as 6 metrics to evaluate the speed of the site. Under the cut, there will NOT be a translation of the Lighthouse documentation and there will be NO tips for writing SEO texts, but you will learn:


  • on the chronology of changes to the Google site ranking policy
  • about objective assessments of subjective perception of site load time
  • how slow is the internet in 2020
  • how loading time affects site traffic, and the conversion process itself
  • funny picture at the end


(not) Google's one


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"Nothing travels faster than the speed of light with the possible exception of bad news, which obeys its own special laws"
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"...studies by Akamai who found that two seconds is actually the threshold for e-commerce site acceptability. Meaning that that’s what users like to shop with. At Google, we aim for under a half second..."
Maile Ohye

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