Skip to content

Commit

Permalink
docs & tag 1.1.0
Browse files Browse the repository at this point in the history
  • Loading branch information
alekseykulikov committed Sep 19, 2019
1 parent 2b5dfee commit bc0fb96
Show file tree
Hide file tree
Showing 2 changed files with 9 additions and 9 deletions.
16 changes: 8 additions & 8 deletions README.md
Original file line number Diff line number Diff line change
@@ -1,29 +1,29 @@
# lighthouse-plugin-field-performance

> Lighthouse plugin that displays "field" performance of your page using real-world data collected by Chrome UX Report.
> Lighthouse plugin that displays "field" performance of your page using real-world data from by Chrome UX Report.
[An example report](https://googlechrome.github.io/lighthouse/viewer/?gist=a688f27b4a7c0561b6d7f9e2b70aa4bd):

<a href="https://googlechrome.github.io/lighthouse/viewer/?gist=a688f27b4a7c0561b6d7f9e2b70aa4bd">
<img align="center" width="956" src="https://user-images.githubusercontent.com/158189/65156251-0bee5e80-da2f-11e9-876b-6faa0125646b.png">
</a>

This plugin extends the Lighthouse report with the data from [Chrome UX Report](https://developers.google.com/web/tools/chrome-user-experience-report/).
It adds a second dimension to performance data using a data collected from actual Chrome users, similar to [PageSpeed Insights](https://developers.google.com/speed/pagespeed/insights/).
<br />
<br />

Scoring algorithm uses PageSpeed Insights recomendations
and apply estimation for First Contentful Paint and First Input Delat. (Notice: the origin values has no effect on score).
This plugin adds a field performance section with the real-world data from [Chrome UX Report](https://developers.google.com/web/tools/chrome-user-experience-report/). It's similar to [PageSpeed Insights](https://developers.google.com/speed/pagespeed/insights/), with an addion of overall score.

The scoring algorithm uses [PSI recommendations](https://developers.google.com/speed/docs/insights/v5/about#faq) and applies estimation for First Contentful Paint and First Input Delay. (Notice: the origin values does not affect score).

Check out the parity between Field & Lab performance on mobile:

<img width="974" alt="Field & lab performance on mobile" src="https://user-images.githubusercontent.com/158189/65246644-4a4b5280-daef-11e9-9b1d-9158297a1f89.png">

And on Desktop:
And on desktop:

<img width="974" alt="Field & lab performance on desktop" src="https://user-images.githubusercontent.com/158189/65246645-4a4b5280-daef-11e9-92aa-e3495aebfa4b.png">

Sometimes field data is missing, because the URL doesn't have enough anounymous traffic.
In this case the Lab performance is the only available measurement.
Sometimes field data is missing because the URL doesn't have enough anonymous traffic. In this case, the lab data is the only available measurement. Optimize, get more traffic, and measure again.

## Install

Expand Down
2 changes: 1 addition & 1 deletion package.json
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "lighthouse-plugin-field-performance",
"version": "1.0.5",
"version": "1.1.0",
"description": "Lighthouse plugin to display field data",
"repository": "https://github.com/treosh/lighthouse-plugin-field-performance",
"author": "Aleksey Kulikov <[email protected]>, Artem Denysov <[email protected]>",
Expand Down

0 comments on commit bc0fb96

Please sign in to comment.